How to Build Garage Steps With a Landing and Handrail Like a Pro | Step by Step Guide

Task Category: Stairs/Handrails

Skill Level: 3

In a new construction environment, it is essential to provide safe and durable access points between different levels in the home. The garage is often a high-traffic area, and the need for a landing at the top of the steps provides a stable, flat transition space between the stairs and the interior door. This is particularly beneficial in environments where homeowners will be carrying items in and out of the home, as it reduces the risk of trips or falls compared to stepping directly into the house from a staircase.

The landing also allows for a natural pause when opening doors or moving through the space, accommodating the movement of people and large objects in tight or busy areas. Building the landing to the dimensions specified (41 inches wide with a 1-inch overhang) ensures ample space for safety and comfort without taking up excessive room in the garage.

By following the design in the photos, the stairs and landing are constructed using durable materials like 2x6 framing and OSB decking, which create a sturdy, long-lasting structure. The railing design offers both safety and aesthetic benefits, with a consistent height that meets code requirements and provides solid hand support, especially important in garages where slippery conditions may occur. The chamfered post design and clean, angled railings add a finished look that enhances the overall quality of the new construction, delivering a polished final product for the homeowner.

Tools Needed:

• Measuring tape

• Circular saw

• Miter saw

• Drill

• Level

• Wood clamps

Materials Needed

• Deck screws

• 2x6 lumber for framing and stair stringers

• 4x4 posts for railing and support

• OSB (Oriented Strand Board) for landing decking

• Railing material (1x4 boards)

  
  

Process for Building Garage Steps with Landing:

Dimensions:

• Landing Framing Width: 41 inches wide with 1-inch OSB overhang.

• Landing Height from Floor: 36 ½ inches (measured to top of rail).

• Post Heights: 35 inches for railing height, aligned with deck height of 36 ½ inches.

• Stair Dimensions: 10-inch run, consistent spacing between the railing.

• Railing Thickness: 1 ½ inch thick (2x4 material), angled at 15°.

• Railing Width: 2 ¼ inches wide.

• Rail Placement on Top Post: 1 ½ inches down from chamfer, consistent with interior rail standards.

• Joist Spacing: 16 inches on center.

1. Layout and Preparation

• Measure the total height difference between the landing and the ground.

• Snap a chalk line on the wall to define the post height and railing height. Ensure the height is consistent from the top to bottom of the railing.

• Ensure framing is level before continuing.

2. Framing the Landing

• Construct the landing platform using 2x6 lumber for the frame, ensuring a width of 41 inches with a 1-inch OSB overhang on the front.

• Secure joists 16 inches on center using joist hangers for stability.

• Lay the OSB decking on top and secure it with deck screws.

• Use a level to confirm the surface is even.

3. Installing the Stairs

• Cut stringers from 2x6 lumber, ensuring a 10-inch run for each step.

• Attach the stringers to the landing and the ground using framing nails and joist hangers.

• Cut and install treads using appropriate materials, securing them with screws.

4. Constructing the Railings

• Use 4x4 posts for railing supports, ensuring they extend 35 inches above the landing.

• Set the top rail 1 ½ inches down from the chamfered top of the 4x4 post.

• Cut and install 1x4 horizontal rails with equal spacing down the post, starting from the top and working down to maintain consistent spacing.

• Angle the handrail at 15° on both sides to match the slope of the stairs.

• Secure all railings with screws and ensure the top and bottom posts have the same measurement for aesthetic and structural consistency.

5. Final Touches and Inspection

• Sand all handrails and exposed wood surfaces thoroughly for smoothness and safety.

• Perform a final inspection to ensure all elements are level, securely fastened, and meet building code requirements.

• Verify railing height and stability.

Quality Check:

• Ensure all treads are evenly spaced and secure.

• Check the landing deck for sturdiness and levelness.

• Confirm that the railing is secure and meets the required height.

• Ensure no sharp edges or rough areas are left on the railings and handrails.

This procedure guarantees a safe, functional set of garage steps with a landing, built to high-quality standards.