---
title: Wood Species Field Guide
description: "On this page[Introduction](#)[Before You Begin](#)[Prerequisites](#)[What You Need To Know](#)[Three Things People Mix Up: Species, Grade, and Milling](#)[The Five Tests, In Order](#)[1. Pick It Up](#)[2. Look At The Cut End](#)[3. Drag A Fingernail Across The Grain](#)[4. Look At The Color Of…"
url: "https://letsbuildstuff.co/learn/wood-species-field-guide/"
updated: "2026-10-02"
category: General Carpentry
---

# Wood Species Field Guide

On this page[Introduction](#)[Before You Begin](#)[Prerequisites](#)[What You Need To Know](#)[Three Things People Mix Up: Species, Grade, and Milling](#)[The Five Tests, In Order](#)[1. Pick It Up](#)[2. Look At The Cut End](#)[3. Drag A Fingernail Across The Grain](#)[4. Look At The Color Of The Raw Wood](#)[5. Press Your Thumbnail Into It](#)[MDF and HDF Are Not Wood, and They Get Their Own Guide](#)[The Pine Family](#)[Eastern White Pine and Sugar Pine, the Classic "Clear Pine"](#)[Ponderosa Pine](#)[Radiata Pine, Today's Default "Select" Pine at the Box Stores](#)[Whitewood: an Overloaded Box-Store Label](#)[Southern Yellow Pine Is a Framing and Treated Species, Not a Trim Species](#)[Clear vs Knotty: a Grade, Not a Species](#)[Finger-Jointed vs Solid Pine](#)[Douglas Fir and Vertical Grain Fir](#)[Framing Species at a Glance](#)[Poplar, the Paint-Grade Workhorse](#)[The Oaks](#)[Red Oak](#)[White Oak](#)[The Blow Test](#)[Maple](#)[Hard Maple](#)[Soft Maple, "Most Maple Molding Is Soft Maple"](#)[Birch](#)[Birch as a Species vs Birch as a Plywood Category](#)[Baltic Birch Is Not a Species](#)[Birch-for-Maple: What Holds Up and What Does Not](#)[Alder](#)[Cedar: Three Different Trees Under One Name](#)[Cherry and Walnut](#)[Mahogany and Sapele](#)[Hickory, Ash, and Beech](#)[Hemlock](#)[Reclaimed and Rustic Lumber](#)[Sawing Methods: Plain Sawn, Quarter Sawn, Rift Sawn](#)[The Three Pairs That Fool People](#)[Primed MDF vs primed finger-joint pine](#)[Maple vs birch](#)[Red oak vs white oak](#)[What Changes On The Job When The Material Changes](#)[Wood Species Quick Reference](#)[Related Guides](#)

[General Carpentry](/learn-category/general-carpentry/) Skill Level: [Beginner (Level 1)](/learn/difficulty-levels/#level-1) · Estimated Time: 40 Minutes To Read

## Introduction

This wood species field guide is the one to open when a board shows up and nobody is sure what it is. The USDA Forest Service [Wood Handbook](https://research.fs.usda.gov/treesearch/62200) is the technical reference underneath it; what follows is how we tell wood species apart on a jobsite, by weight, grain, color, and smell.

Most of what we hang is MDF, and MDF makes this easy, because it is all the same. Every stick out of the bundle looks like every other stick. You can run production trim for two years and never once have to know what a board is.

Then a stain-grade job shows up. Somebody drops a bundle of oak nosing next to a bundle of maple and asks which one goes on the stairs, or the super wants to know why the new casing is not matching the old casing, or you are about to run a piece of poplar through the saw thinking it is pine. That is the day this costs you a piece, and stain-grade pieces are the expensive ones.

This is the field reference for the species you will actually meet: the common pines, both oaks, the framing species, the hardwoods, and the imports you will only ever meet by photo. Six species and one manufactured panel, MDF, cover most of what you will touch on a production job. This page covers those, and then the rest.

## Before You Begin

### Prerequisites

You need to see raw wood. Primer hides the grain, the color, and the smell, and a factory finish hides even more. If a piece is painted or prefinished, cut an inch off the end and look at the fresh cut. A cutoff off the miter saw tells you more in two seconds than staring at the face of the board for a minute.

Keep a short cutoff of each material in your bag or on the truck once you have them. Comparing an unknown board against a known one is easier than trying to remember what maple looks like.

### What You Need To Know

The real question behind "what is this" is almost always "is this paint grade or stain grade," because that is what changes how you work.

- **[Paint grade](/glossary/materials/#primer-paint-grade-vs-stain-grade)** means MDF, primed finger-jointed pine, or poplar. Nobody is going to see the wood. The painter fills the nail holes and caulks the gaps, and that is the painter's scope, not ours. Our own joints, where one piece meets another, still get glued, puttied, and sanded by us.
- **Stain grade** means real wood with a clear or stained finish, so every joint and every mark shows forever. Get the joint tighter than usual, use as little filler as you can, and sand it up. Pencil marks show through stain every time, so sand them off clean, or lay your marks where the next piece covers them.

That is the house rule and it is the whole reason species matters. See [Difficulty Levels Explained](/learn/difficulty-levels/): level 3 material is usually the expensive stain-grade stuff, where caulk cannot absolve anything.

## Three Things People Mix Up: Species, Grade, and Milling

Species, grade, and milling are three different questions, and mixing them up is the fastest way to order the wrong board or worry about the wrong thing.

**Species** is the tree it came from: pine, oak, maple, walnut. **Grade** is how clear the board is, clear versus knotty, select versus common, and the same species gets sorted into either grade at the mill. **Milling** is what the mill did to the board after it left the tree: [S4S](/glossary/materials/#s4s-surfaced-four-sides) (surfaced four sides, meaning planed smooth and square on all four faces), [finger-jointed](/glossary/materials/#finger-joint-fj-primed-clear-pine-poplar-oak-maple-mdf), primed, prefinished. None of those words is a species name, and none of them tells you what tree you are actually holding.

A separate guide in this series covers [sizing, grading, and milling](/learn/lumber-sizes-grades-and-milling/) in full, the nominal-versus-actual numbers and the board-foot math included. This one sticks to species: what it is, not how it was cut or sorted.

## The Five Tests, In Order

No tools, no chart, no app. Run these five in order and you will name almost anything on a finish job.

### 1. Pick It Up

Weight sorts the pile into two groups before you look at anything. Pine and poplar feel light. Oak, hard maple, and birch feel like real hardwood. The thing that surprises people is that **MDF lands in the heavy group**, right alongside oak and maple, not with the light stuff you would expect a manufactured board to weigh. (There is an ultralight MDF made for specialty work; it is not what shows up in a trim bundle.) A 12-foot piece of oak or maple casing is heavy enough to throw off your balance on a ladder, and a 12-foot MDF casing will visibly droop in the middle when you hold it flat.

### 2. Look At The Cut End

This is the one test that never lies, as long as you look at the whole end and not just the edge. Real wood has end grain: growth rings, pores, a direction. MDF and HDF have no end grain at all, because there is no tree in there, just wood fiber and glue pressed into a panel. A veneered panel or a poplar-edged shelf shows its manufactured core right there on the cut end too. The cut end of MDF looks like a slice of dense chocolate cake, uniform brown all the way through.

If you learn one thing off this page, learn this: **look at the end of the board.**

### 3. Drag A Fingernail Across The Grain

Run your nail sideways across the face, against the direction of the grain lines. Oak has big open pores and your nail catches and skips in them; you can feel the texture with your eyes closed. Maple, birch, and poplar are closed grain, so your nail slides across glass-smooth. Pine is smooth too, but soft enough that you may leave a dent instead.

Open pore or closed pore is the fastest useful split among the hardwoods on this list, and it takes one second.

### 4. Look At The Color Of The Raw Wood

Not the finish, the wood. Poplar has green, gray, and purple streaks that no other trim wood combines the same way. Pine is yellow-white with knots. Maple and birch are creamy near-white. Red oak is pink to reddish tan. White oak is brown with an olive or gray cast to it.

### 5. Press Your Thumbnail Into It

On a cutoff or the back side, not on a finish face. Pine and poplar dent under a thumbnail. Oak, birch, and hard maple are hard enough that a thumbnail leaves little or nothing; soft maple gives a little more. MDF does not dent so much as crush, and it stays crushed.

**Bonus test: smell the fresh cut.** Pine smells like resin and Christmas. Red oak smells sour and sharp, almost like vinegar. White oak does not: it smells sweeter, closer to vanilla, which is part of why it is the barrel wood. Poplar and maple barely smell like anything. MDF smells like glue and coats the inside of your nose with dust.

### MDF and HDF Are Not Wood, and They Get Their Own Guide

MDF is not wood in the sense that matters here. It is wood fiber and resin pressed into a sheet, then milled into trim. It is the most common material on paint-grade jobs: [baseboard](/learn/install-baseboard/), casing, skirt boards, shiplap, and the [Face Frame](/glossary/closets/#face-frame) closet parts. Smooth painted [shiplap](/learn/install-shiplap/) is almost always MDF. Standard closet shelving is not MDF; it is bullnose particle board, by house rule. A separate guide in this series covers [sheet goods](/learn/sheet-goods-and-engineered-materials/) in full; here it only shows up as the contrast material for the five tests above.

- **How to spot it.** No grain anywhere, including the cut end. Uniform color through the whole thickness, usually brown (moisture-resistant MDF is usually dyed green). Heavy for its size.
- **How it cuts.** It makes dust, not chips or shavings, and that dust gets into everything.
- **How it fastens.** 23-gauge pins barely hold in MDF, because there is no grain for them to grip. Glue does the holding on every mitered corner, and a face frame miter never gets cross-nailed. See [How to Install Base Shoe](/learn/install-base-shoe/) for the pin problem and the glue fix.
- **Water.** MDF swells at the edge if it gets wet and it never goes back.
- **Lengths.** 16-foot primed MDF base and casing is a normal catalog item at the big suppliers, not a special order, so a long wall does not automatically mean a scarf joint.

HDF, high-density fiberboard, is the same idea pressed harder and denser: heavier again, a harder face, and a cut end that is darker and tighter than MDF. It also goes by [hardboard](/glossary/materials/#hardboard) on a lot of purchase orders. Where you actually meet HDF on a job: door skins, pegboard and other hardboard panels, and the core board inside laminate flooring. A door skin is the thin face panel glued to both sides of a hollow-core door over a lightweight core, usually HDF, sometimes thin plywood. It is a part of a finished door, not something you buy on its own.

Painted five-piece cabinet door stiles and rails are usually MDF from a production shop, or solid paint-grade wood like poplar or maple. MDF machines and routs cleanly on the deep profile cuts those doors need, which is why most door shops reach for it. A few door shops build five-piece doors from HDF instead, so the HDF door frame seen on a real job is plausible; the sheet goods guide in this series sorts it out.

## The Pine Family

Pine covers more ground than any family here, from classic clear stuff to the plantation-grown board that is now the box-store default. Same rules apply across the family: light, resinous, dents easily, and the paint-grade species you will most often see with knots in it (knotty alder and cedar carry them too, covered below). Pine can also carry a [sap or pitch pocket](/glossary/materials/#sap-pocket-pitch-pocket), a small pocket of hardened resin trapped in the growth rings, which bleeds through paint if it is not sealed. Sealing is the painter's job; we just flag which board has one.

### Eastern White Pine and Sugar Pine, the Classic "Clear Pine"

Eastern white pine is the traditional Northeast "clear pine," soft and light at about 380 lbf Janka, pale and straight-grained when it is cut clear of knots. Sugar pine is its West Coast cousin, in the same white pine group, also about 380 lbf Janka and about the same weight, light brown to nearly white with occasional small resin streaks on a flatsawn face. Both are valued for staying put once they are dry. The "clear pine" on a box-store rack today is more often radiata, covered below.

### Ponderosa Pine

Ponderosa is the western working pine, about 460 lbf Janka, with reddish brown heartwood against a yellowish white sapwood. It is a step harder than eastern white pine but still a soft, easy-cutting board. Out west, "knotty pine" at retail is often ponderosa, or its cousin lodgepole, not the eastern white pine a Northeast supplier would sell under the same name.

### Radiata Pine, Today's Default "Select" Pine at the Box Stores

Radiata pine is a real, distinct species, plantation-grown almost entirely in Chile, New Zealand, and Australia, and it is what most "select" pine boards and primed finger-jointed trim at the box stores are made from today, not old-stock eastern white pine. It is measurably harder than eastern white pine, about 710 lbf Janka against eastern white pine's 380, so a radiata board resists a dent and a fastener a little better than the "clear pine" it replaced on the shelf.

### Whitewood: an Overloaded Box-Store Label

"Whitewood" is not one thing. Depending on the store and the region it can mean SPF framing lumber, yellow-poplar sapwood, or a mixed bundle of West Coast species. Do not grab a whitewood 1x expecting select pine trim quality; check the actual board, not the label.

### Southern Yellow Pine Is a Framing and Treated Species, Not a Trim Species

Southern yellow pine is a framing and treated-lumber species. In this market it shows up in joists and headers alongside Douglas Fir-Larch, and it is what almost all treated stock is made from. It is a framing and treated species, not a trim species. See Framing Species at a Glance, below, and a separate guide in this series covers [framing and treated lumber](/learn/framing-and-treated-lumber-for-trim-carpenters/) in full.

### Clear vs Knotty: a Grade, Not a Species

Clear and knotty are grade names, not species. The same tree gets sorted into either grade at the mill, based on how many knots and defects show up in that particular board. That is also why "clear pine" and "knotty pine" mean a different actual species depending on where you are standing: eastern white pine in the Northeast, ponderosa or lodgepole in the Rockies.

### Finger-Jointed vs Solid Pine

**Finger-jointed pine is the one you actually handle.** Short pieces of pine glued end to end with interlocking zigzag joints, then primed. It is a lot of the primed jamb stock and primed casing on our jobs. To confirm it, look at the edge or the back for the zigzag lines under the primer, or look at a cutoff. It is light, and it is stable because the short pieces cancel each other out, but the joints can telegraph through paint eventually and a finger-jointed jamb can compress at the hinge mortise under the weight of a solid core door. See [How to Install a Door Jamb Extension](/learn/door-jamb-extension/).

## Douglas Fir and Vertical Grain Fir

Douglas fir is a light brown softwood with a hint of red or yellow and darker growth rings, straight to slightly wavy grain, and a medium to coarse texture. It is heavier than most of the pine family, about 620 lbf Janka against eastern white pine's 380, and it splinters more readily, so it is worth a glove when you are handling rough stock. Vertical grain (VG) fir is not a different species, it is Douglas fir cut on the [quartersawn](/glossary/materials/#quartersawn-plainsawn) face, which straightens the grain out and calms the wild cathedral pattern you get on a flatsawn board. Where it tends to show up: stair parts, some doors, and exterior work.

## Framing Species at a Glance

This crew is trim, not framing, but you will still handle framing species at stringers, ledgers, and column bases. In the Omaha market, framing runs on SPF (spruce-pine-fir) for stud walls, plus Douglas Fir-Larch and Southern Yellow Pine for joists and headers. Hem-Fir is a coastal Pacific Northwest group, uncommon here, more trivia than a delivery-ticket item. A separate guide in this series covers [framing and treated lumber](/learn/framing-and-treated-lumber-for-trim-carpenters/) in full.

House rule: [garage steps](/learn/build-garage-steps/) are built from regular pine or cedar, never pressure-treated lumber, even in a garage. See [How to Build Garage Steps](/learn/build-garage-steps/).

## Poplar, the Paint-Grade Workhorse

The one you will learn fastest, because nothing else looks like it once the streaks show. Creamy white sapwood with olive green, gray, and purple-black streaks running through the heartwood. Those green streaks turn brown over time in the light, but on a fresh piece they are unmistakable. A board cut from plain sapwood, with no streaks, can still pass for pine, which is how it ends up going through the saw as the wrong species.

Poplar is technically a hardwood and it does not act like one. It is light, it dents under a thumbnail, and it fuzzes a little when you sand it. What it does well is take paint: it is affordable, it holds a crisp edge, and it holds up better than MDF. That combination is why poplar is our solid wood for painted work, and why poplar, not MDF, is the more common [base shoe](/learn/install-base-shoe/) on our painted jobs: MDF shoe is a small profile and it breaks too easily. Poplar also takes a pin fine, which MDF does not.

Where you will see it: base shoe, face frames on closet shelving (a Face Frame closet is 3/4 inch MDF sheets ripped to size with a poplar face frame, per house rule), painted crown, the poplar front edge glued onto a ripped particle board countertop shelf, 1x2s. House rule at cabinets: a painted base shoe is poplar; a stained shoe matches the cabinet species.

What it is bad at is stain. It blotches badly and reads green under a clear finish, so if somebody hands you poplar for a stain-grade run, stop and ask.

## The Oaks

Two oaks cover almost every oak job: red and white. They come from the same open-pore family, so the fingernail test will not separate them. Color, ray fleck, smell, and the blow test will.

### Red Oak

Big open pores, coarse texture, and a pink to reddish tan color. Drag a fingernail across it and it catches. Look at the face and you see the pores as long open scratches following the grain. It is the oak that has been in builder-grade houses for forty years, and it is the cheaper of the two oaks.

On a quartersawn face you will see ray fleck, the short flashy marks running across the grain. Red oak's rays are short, typically well under an inch.

### White Oak

Same coarse open-pore family, but browner and grayer, with an olive cast instead of pink. The pores are there but they are plugged, so the surface reads tighter and smoother than red oak even though the pore lines are the same size. Ray fleck on a quartersawn face is long, often close to an inch or a little more, versus red oak's short flecks; several inches at a stretch only shows up on exceptional quartersawn stock, not on a general board. It costs more, it is what the current stain-grade taste calls for, and because its pores are plugged it is the one that holds up to water.

Where you will see oak: stain-grade base, stair nosing (oak or maple, see [How to Install Wood Nosing](/learn/install-wood-nosing/)), a stained mantel (usually maple or white oak, the customer's call), and ceiling beams, which are clear pine or white oak on our jobs and almost never cedar, see [How to Install Ceiling Beams](/learn/install-ceiling-beams/). Oak base shoe is harder to find than oak base: the field notes name Christensen Lumber as the one local supplier that had it in stock at the time.

### The Blow Test

This one is worth real money and there is a test that settles it cold.

**The blow test.** Take a short cutoff, a few inches long, and blow hard through the end grain with the other end in a cup of soapy water. Red oak bubbles, because its pores run open straight through the piece like drinking straws. White oak heartwood does not, because its pores are plugged shut. A pale sapwood edge on a white oak board has no plug and can still bubble, so blow through the darker heartwood. That plug is a big part of the reason white oak heartwood is the one used where water is involved and red oak is not. Use a short, straight-grained piece; it will not work on a 12-footer. It is the most reliable field test for the two oaks: everything else on this page is a good clue, this one is as close to a verdict as you get without a loupe.

Without a cutoff, stack the softer signals: pink and coarse says red oak, brown and olive and tighter-looking says white oak, and long ray fleck on a quartersawn face says white oak.

Why it matters: they do not stain the same, they do not price the same, and a stain-grade tread or nosing in the wrong oak next to the right oak is a piece you are buying twice.

## Maple

### Hard Maple

Creamy white to light tan, very fine and even closed grain, and hard, about 1,450 lbf Janka. Hard maple is harder than either oak, though it is not the hardest wood on this page anymore now that hickory has made the list farther down. Your fingernail slides right across it and leaves little or nothing. The grain lines are subtle and tight, so a maple board can look almost blank compared to oak.

Working notes that matter more than the ID:

- **It burns.** A dull blade or too slow a feed rate leaves burn marks on the cut face, and maple is one of the first species here to show it (cherry scorches easily too). See [Make a Plinth Block](/learn/make-a-plinth-block/) for what a burn mark on a denser stain-grade species actually costs you.
- **It splits near ends.** Pre-drill or go to a micro pin when you are fastening close to the end of a piece.
- **A lot of what gets called maple is soft maple.** Hard maple and soft maple usually look nearly identical, but soft maple is noticeably easier to dent and cut, softer than either oak rather than harder. Most maple molding is soft maple. It is not a defect, it is just a different board than the tread stock.

### Soft Maple, "Most Maple Molding Is Soft Maple"

Soft maple and hard maple come from different maple species, not a grade split. They usually look nearly identical to the eye, though soft maple more often carries gray or brown mineral streaks, and soft maple dents and cuts noticeably easier, softer than either oak rather than harder. Where you will see maple of either kind: stained crown, mantels, stair nosing (including 1x4 or 1x8 square maple nosing on custom work), breadloaf [handrail](/learn/mount-handrail-wall/), cabinet doors and edge tape, and stain-grade base shoe. The field notes name Scott Millard Lumber as the usual source for maple breadloaf rail.

## Birch

### Birch as a Species vs Birch as a Plywood Category

Birch is maple's twin and one of the hardest calls on this whole page by eye. Maple and birch are not even related trees, maple is genus Acer, birch is genus Betula, they just happen to both be pale, fine-grained hardwoods that finish up looking alike. They are also in a similar hardness range: yellow birch runs about 1,260 lbf Janka against hard maple's roughly 1,450, a real gap on a wear surface like a tread but not one your eye can see on casing or base. The honest differences: birch usually has a little more figure and a little more wave to the grain than maple's very even lines, and birch heartwood runs reddish brown against its near-white sapwood, so a birch board is more likely to have two obviously different colors in it.

**The practical tell is what it was made into.** Birch is the sheet-goods species: birch [plywood](/glossary/materials/#plywood), cabinet boxes, prefinished panels, shelving. Maple is what you see as solid molding, treads, and cabinet doors. If it is a panel, lean birch. If it is a stick of molding, lean maple. Both stain blotchy without a conditioner, and under paint there is no reliable way to tell them apart by eye. On casing or base it does not matter. What matters is matching what is already on the job.

### Baltic Birch Is Not a Species

Baltic birch is a separate, higher-grade multi-ply product, built from thin birch [veneer](/glossary/materials/#veneer) layers with almost no voids between plies. It is not a fair stand-in comparison for ordinary maple or birch veneer-core plywood, and it is not really a species question at all, it is a manufacturing grade of birch plywood specifically.

### Birch-for-Maple: What Holds Up and What Does Not

Birch does get specified on purpose, and a supplier sending birch plywood where you expected maple is normal trade practice, not a mistake or a downgrade. In sheet form the two are close enough that the swap is standard: birch costs less and looks about the same under paint or a light finish, though a trained eye can still tell them apart under a clear coat by the grain. **Where that stops being true is solid stock on a wear surface.** Maple is the harder of the two, so a birch stair tread is not the same part as a maple stair tread even though a birch panel and a maple panel are close to interchangeable. Sheet goods, swap freely. Treads and anything that takes a beating, match what was specified.

We do order birch on purpose here, not by accident. The front of a floating shelf is birch per shop standard, see [How to Build a Floating Shelf](/learn/build-a-floating-shelf/), with plywood or MDF behind it as the skin.

## Alder

Alder is light tan to reddish brown, soft for a hardwood at around 590 lbf Janka, about two-fifths the hardness of hard maple, and it is sold as the budget stand-in for cherry once it is stained. Side by side, freshly stained, the two can be hard to tell apart, but alder shows a visible ray-streak pattern that is much fainter on cherry, it is noticeably softer to the fingernail, and it will not keep up with cherry trim that has darkened with age.

Our baseboard and base shoe guides list alder alongside oak and maple as the usual stain-grade options and call it the easiest of the three to cut and nail. See [How to Install Baseboard](/learn/install-baseboard/). It also shows up as full-run alder base shoe on cabinetry work, like a run of island base shoe.

Knotty and clear alder are a grade split, not a different tree, same as pine. A knot dulls a blade faster and is more prone to tearout, and a knotty board's knots get back-sealed before finish so the resin does not bleed through. That sealing step is the painter's; we just flag which boards need it.

Same match rule as everywhere else on a cabinet job: painted shoe is poplar, stained shoe matches the cabinet species. Alder cabinets are one place that rule puts alder shoe on the job.

## Cedar: Three Different Trees Under One Name

Cedar means one of three different trees, and knowing which one changes what you expect from the board. Western red cedar is the one most likely on a porch column or an exterior step: soft, reddish, naturally rot resistant, and usually sold for that work under the letters STK, which most people read as Select Tight Knot. STK is trade shorthand, not a rule-book grade; the rule-book grade for that knot allowance is Select Knotty, and suppliers use STK to mean sound, tight knots allowed below the pricier clear grades. A separate guide in this series covers [cedar grades and exterior cedar work](/learn/exterior-trim-materials/) in full.

Inland (Rocky Mountain) and coastal western red cedar are the same species grown in different climates. Inland runs tighter-ringed and knottier, coastal runs bigger and clearer. Both Menards and Home Depot stock cedar porch posts as a routine item, not a specialty order.

Aromatic cedar, the strongly scented reddish wood used for closet lining, is actually eastern red cedar, a juniper, not a true cedar and not the same tree as western red cedar at all. Eastern white cedar is a third, separate species, very soft and uncommon in this market.

Where the crew meets cedar most: the shims in every bag, see [Carpenter Hand Tools](/learn/carpenter-hand-tools/), and garage step posts and stringers, which use regular pine or cedar under house rule, covered above under Framing Species. It almost never turns up on ceiling beams. A separate guide in this series covers [exterior trim materials](/learn/exterior-trim-materials/) in full.

## Cherry and Walnut

Cherry starts life a light pinkish brown and darkens to a medium reddish brown with age and light, so a fresh cut and a five-year-old cherry board in the same house can look like different species. It runs about 950 lbf Janka, a little softer than either oak, with a fine, even grain and the occasional gum pocket. It takes a clear finish beautifully, which is most of why it gets specified.

Walnut runs darker from the start: chocolate brown heartwood with darker streaks, against a pale, almost white sapwood. It is denser than cherry, about 1,010 lbf Janka, with straight grain that can go a little irregular, and it is often prized for figured pieces with curl or burl.

Where you will see either: a stained newel post, see [How to Install a Newel Post](/learn/install-newel-post/), and otherwise custom or high-end work. Alder, covered above, is the usual budget stand-in for a cherry look under stain; walnut has no common budget stand-in the way cherry has alder.

## Mahogany and Sapele

Mahogany and sapele are not in the bench kit for this guide. Both are imported and regionally rare, so this is a photo-only identification, not a cutoff-in-hand one.

Genuine (Honduran) mahogany runs a pale pinkish brown to a darker reddish brown, deepening over time, with a shimmering, chatoyant look under light. It is moderate for a hardwood, about 900 lbf Janka. The stair parts manufacturer's catalog in the company files lists mahogany as a stocked species alongside red oak, white oak, poplar, and hard maple, so if a stair job calls for it, that is where it is likely coming from.

Sapele runs harder, about 1,360 lbf Janka, reddish brown, and on a quartersawn face it can show a ribbon stripe figure, alternating light and dark bands that shimmer when you tilt the board. Its grain is interlocked and sometimes wavy, which tears out easily on a router or planer if the bit is not sharp. Both species turn up on exterior doors and high-end stair parts; sapele is the cheaper of the two, so it shows up more. Neither is a standard production item here.

## Hickory, Ash, and Beech

Hickory is the hardest domestic species here, about 1,880 lbf Janka, well ahead of hard maple. It is also one of the most color-streaky: heartwood runs light to medium brown with a reddish hue against a much paler sapwood, so one board can carry two or three visible tones, sometimes sold on purpose as calico hickory.

Ash looks like oak's grain in a lighter, less pink board. It is ring-porous like oak, big open pores in the early growth and small ones later, so the fingernail test catches the same way it does on oak. What it lacks is ray fleck altogether: ash's rays are narrow and do not show as fleck the way both oaks do, red oak included. That absence is the surest tell on a stained board, and after it lean on color, since ash runs lighter and less pink than either oak. White ash runs about 1,320 lbf Janka, close to white oak; a board just labeled ash can be green ash, a bit softer.

Beech is pale, cream with sometimes a pink or brown hue, with a silvery, tiny ray fleck on a quartersawn face, much smaller and less dramatic than oak's. About 1,300 lbf Janka, similar to ash, but beech is one of the biggest movers with humidity on this list, so it needs extra room in a dry or wet season.

None of these three is a common sight on a production trim job here. The stair parts catalog in the company files lists hickory and beech as special-order species, alongside cherry, walnut, and alder.

## Hemlock

Hemlock splits into two very different jobsite roles depending on which one you have. Western hemlock, about 540 lbf Janka, is common out west as paint-grade [door and window](https://letsbuildstuff.co/learn/door-and-window-parts/) millwork: fine textured, straight grained, and it splinters less than most other softwoods when it is milled clear and vertical grain.

Eastern hemlock, about 500 lbf Janka, is the opposite story: it splinters easily and planes poorly, so it stays in framing and rough construction and rarely turns up as trim. If a board is just labeled "hemlock" with no direction given, ask which one, because they do not do the same job.

## Reclaimed and Rustic Lumber

Reclaimed lumber comes with baggage a new board does not. Old nail holes and buried metal, screws, staples, fencing wire, are real blade and bit hazards, and species is often a guess unless the supplier documents it.

[Moisture content](/glossary/materials/#moisture-content) is also unknown, so give a reclaimed piece longer to [acclimate](/glossary/doors/#acclimation) in the space before you cut and fasten it tight. Sizes are often true rough dimensions, not the nominal-to-actual system covered elsewhere in this series: an old barn "2x4" is whatever that particular saw left it at, not 1-1/2 by 3-1/2, while lumber pulled from a newer house may already be standard size. Measure it. A metal detector pass before the saw is standard good practice on this material, not overkill.

## Sawing Methods: Plain Sawn, Quarter Sawn, Rift Sawn

How a log gets cut into boards changes what the face grain looks like, and it is the reason two boards of the same species can look nothing alike. Plain sawn, the most common and cheapest cut, produces the cathedral arches you see on most flatsawn boards, tall, pointed grain patterns like stacked rainbows. Quartersawn means the log is cut into quarters first, then sliced so the growth rings run nearly straight through the thickness of each board; it produces straight, consistent lines and shows ray fleck on species that have it, like oak. Rift sawn splits the difference, cut with the rings at an angle to the face, roughly 30 to 60 degrees, giving straight grain with almost no ray fleck and no cathedral pattern.

Stability follows the same order: quartersawn moves the least with humidity, rift sawn is close behind, plain sawn moves the most. That is part of why quartersawn white oak commands a premium, and it is also why vertical grain fir, covered above, is really just Douglas fir cut on the quartersawn face.

## The Three Pairs That Fool People

### Primed MDF vs primed finger-joint pine

Both are white sticks in a bundle and this is the mix-up that actually happens on our jobs. Three ways to settle it in about five seconds:

- **Look at the cut end.** Pine has grain. MDF has none.
- **Pick it up.** MDF is noticeably heavier and a long piece droops.
- **Look at the back or the edge.** Finger joints show as zigzags under the primer, though a short piece cut from between two joints may show none. MDF is blank everywhere.

It matters because they fasten differently, they span differently, and MDF needs shim points every 12 to 16 inches where solid stock can go 16 to 20.

### Maple vs birch

Nobody wins this one by eye every time, including people who have been doing it thirty years. Go by the form it comes in (panel means birch, molding means maple), by the heartwood color (birch's is reddish brown), and by asking, because the supplier ticket knows. The good news is that the working differences are small, so a wrong guess between these two costs you almost nothing on casing or base. On a tread or another wear surface, maple is the harder wood, so get that one right. The next pair is worse.

### Red oak vs white oak

This one is worth real money and there is a test that settles it cold, covered in full above under The Oaks. Stack the softer signals if you do not have a cutoff to blow through: pink and coarse says red oak, brown and olive and tighter-looking says white oak, and long ray fleck on a quartersawn face says white oak.

## What Changes On The Job When The Material Changes

This is the part that matters if MDF is all you have run. The identification is trivia until it changes what your hands do.

- **Fastening.** In solid wood, a pin or a brad grips. In MDF there is no grain to grip, so 23-gauge pins barely hold and glue does the work on every miter. Never cross-nail a mitered face frame corner into MDF.
- **Splitting.** Hardwood splits near ends and MDF does not, it crumbles. Maple splits easily near the ends, and so does any dense hardwood like hickory or white oak, so pre-drill or micro-pin there. Hardwood generally gets a pre-drill.
- **Blades.** MDF chips out with a low tooth count. Maple burns with a dull blade or a slow feed. Both problems are the same fix: sharp blade, right tooth count, steady feed.
- **Water.** MDF swells permanently at the edge. Solid wood moves with the seasons and comes back. White oak handles wet, red oak does not.
- **Handling.** A 12-foot MDF piece flexes and droops and needs more support both on the saw and on the wall. A 12-foot piece of oak or maple casing or base is heavy enough to be a balance problem on a ladder.
- **Joints and finish.** Paint grade forgives a joint because the painter fills and caulks it. Stain grade forgives very little: tighter miters, minimum filler, sand it up, and keep your pencil marks off the finish face.
- **What a mistake costs.** An MDF piece is cheap. A stain-grade maple, walnut, or white oak piece is not, and it is usually the one on a longer lead time.

## Wood Species Quick Reference

- **No end grain at all, heavy, uniform brown:** MDF. HDF is its thin, harder cousin, met as a door skin or pegboard, not as trim.
- **Green, gray, and purple streaks, light, dents easily:** poplar.
- **Yellow-white, knots, smells like resin, dents easily:** pine family, eastern white, sugar, ponderosa, or radiata. Zigzags under the primer means finger-jointed pine.
- **Straight, tight, orange-tan grain, heavier than the pines, splinters:** Douglas fir, or vertical grain fir if the face is dead straight.
- **Studs and headers, not trim:** SPF, Douglas Fir-Larch, or Southern Yellow Pine.
- **Near-white, dead smooth, hard, very even grain:** maple, or birch if it is a panel or has reddish heartwood.
- **Light tan to reddish brown, soft, ray-streak pattern:** alder.
- **Reddish and soft, or strongly scented, or very pale and very soft:** western red cedar, aromatic (eastern red) cedar, or eastern white cedar. Check which before you buy.
- **Coarse open pores your nail catches in, pink:** red oak. Blow through a cutoff and it bubbles.
- **Coarse pores but tighter and smoother, brown with olive or gray:** white oak. The heartwood will not bubble.
- **Pinkish brown darkening to reddish brown, fine even grain:** cherry.
- **Chocolate brown heartwood, pale sapwood, straight grain:** walnut.
- **Reddish brown with a shimmer, taught by photo only here:** mahogany, or sapele if a quartersawn face shows a ribbon stripe.
- **Hardest board on this whole list, color-streaky:** hickory.
- **Looks like oak's grain, lighter and less pink, no real ray fleck:** ash.
- **Pale, tiny silvery ray fleck, moves a lot with humidity:** beech.
- **Pale, straight-grained, used out west for paint-grade trim:** western hemlock. Splintery, rough use, and old barn beams: eastern hemlock.
- **Old nail holes, true rough dimensions, unknown moisture:** reclaimed lumber. Run a metal detector before the saw.

Janka hardness ranks how hard a species is to dent or fasten into. Higher lbf means harder. The numbers below come from the Wood Database and are rounded to the nearest 10 lbf.

| Species | Janka Hardness (about) |
| --- | --- |
| Sugar pine | 380 lbf |
| Eastern white pine | 380 lbf |
| Ponderosa pine | 460 lbf |
| Eastern hemlock | 500 lbf |
| Western hemlock | 540 lbf |
| Alder | 590 lbf |
| Douglas fir | 620 lbf |
| Radiata pine | 710 lbf |
| Honduran mahogany | 900 lbf |
| Black cherry | 950 lbf |
| Black walnut | 1,010 lbf |
| Red oak | 1,220 lbf |
| Yellow birch | 1,260 lbf |
| American beech | 1,300 lbf |
| White ash | 1,320 lbf |
| White oak | 1,350 lbf |
| Sapele | 1,360 lbf |
| Hard maple | 1,450 lbf |
| Shagbark hickory | 1,880 lbf |

## Related Guides

- [How to Install Stock Trim Material](/learn/install-stock-trim-material/)
- [How to Install Base Shoe](/learn/install-base-shoe/)
- [How to Install Baseboard](/learn/install-baseboard/)
- [How to Install Wood Nosing](/learn/install-wood-nosing/)
- [Make a Plinth Block](/learn/make-a-plinth-block/)
- [Carpenter Hand Tools: What to Buy for Your Own Bag](/learn/carpenter-hand-tools/)

Written by **David Hospodka**, Sun’s Up Construction

David Hospodka learned finish carpentry from his father, alongside his brother Joel, and worked his way through college trimming houses. He then spent about ten years as a railroad bridge engineer, handling design, construction, maintenance and project management. He came back to finish carpentry full time in 2017.

[About Let’s Build Stuff](https://letsbuildstuff.co/about/)