3D CAD design of custom garage stair and landing
Featured Build

Garage Stair & Landing

A custom garage landing platform and staircase designed for my parents to replace an existing set of hazardous, uneven steps with a safe, sturdy entryway.

The original steps presented serious safety issues: the risers were uneven and not even the same height, the top step offered almost no landing space when opening the door, and there was no proper railing. In a working garage where vehicles are parked, fitting a full textbook landing wasn't possible due to limited room. Instead, this design optimizes every inch of available space: creating a stable transition platform right outside the door and turning the stair run 90 degrees along the wall with code-compliant, uniform rise and run and full railings.

The Problem & The Solution

Solving the Space & Safety Challenge

Existing hazardous garage steps with uneven heights and no railing
The Existing Condition

Uneven Heights & Zero Railing

  • ×Mismatched step heights: The old steps were uneven and differed in rise, creating a severe tripping hazard that caught foot traffic off guard.
  • ×No door landing: Stepping through the doorway immediately dropped onto a shallow step with no level threshold to stand on.
  • ×No supportive railing: Only a short grab bar lagged to the wall far to the right, leaving anyone descending completely unsupported.
New 3D design of custom garage stairs with uniform steps and railings
The Custom Solution

Uniform Steps & Full Railings

  • ✓Code-compliant rise & run: Precision-cut stringers guarantee identical riser heights and comfortable tread depth from top to bottom.
  • ✓Continuous handrail & guardrail: Full perimeter fall protection on the landing and a continuous handrail along the stair flight.
  • ✓Maximized space for tight quarters: Sized to provide a comfortable door threshold while hugging the wall to preserve parking space.
Interactive Design

Explore the 3D Model

Every joint and dimension was modeled in 3D prior to cutting lumber. Click and drag to orbit around the structure, zoom in on the joinery, or inspect the baluster and stringer details.

SketchUp 3D Warehouse ViewerUse your mouse or touchscreen to orbit, pan, and zoom.

Project Specifications

Application
Residential garage entryway to home interior
Configuration
Raised landing platform with 90-degree right-turn stair descent
Stair Geometry
Code-compliant uniform rise and run to eliminate uneven step heights
Footprint Adaptation
Landing custom-dimensioned to maximize space without impeding garage stall clearance
Safety Railings
Continuous graspable handrail, full perimeter guardrail, and secure newel posts
Baluster Detailing
Vertical balusters with 45-degree beveled bottom ends (< 4" spacing)