Assess Existing Unsafe Staircase

What happens in this clip

Begin by thoroughly inspecting the existing staircase. Observe the multiple layers of plywood placed over rotten treads and holes, indicating severe structural compromise. Note any slanted or uneven steps, which pose a significant safety risk. Pay close attention to the stringers, as they are discovered to be inadequately cut (a 2x10 reduced to a 2x4 in places) and improperly supported, failing to meet building codes. This initial assessment is crucial for understanding the scope of the demolition and reconstruction required.

Goal: The first step involves identifying the structural deficiencies of the old staircase, noting rotten wood, hazardous holes, uneven steps, and non-code-compliant construction practices.

About the full video

This video documents the process of demolishing an old, non-code-compliant staircase and then constructing a new, safe, and sturdy staircase. The project involves removing existing rotten wooden steps, breaking up concrete embedded in the rock foundation, leveling an uneven landing, framing a new shear wall, and finally calculating, cutting, and installing the stringers and treads for the new staircase.

Step 1 of 6: Inspect Existing Stair Structure

Begin by carefully inspecting the existing outdoor stairs. Look for any signs of rot, structural damage, loose railings, or uneven surfaces on the current treads. Note the material of the existing treads (e.g., wood, concrete, composite) and how they are attached. This initial assessment will inform the measurement process and highlight any potential issues that need to be addressed before installing new treads.

Open this step in the guide

Every video in How to Measure Outdoor Stairs for Treads

1. Step 1: Inspect Existing Stair Structure

   • 0:00–0:13 Assess Existing Stairs and Planning
   • 0:00–0:59 Assess Existing Unsafe Staircase (this video)
   • 0:00–0:12 Remove Old Stairs and Assess Site

2. Step 2: Measure Tread Depth

   • 0:31–1:01 Measure Riser Height and Tread Depth Consistency
   • 0:00–0:03 Measure Individual Stair Components
   • 0:55–1:05 Measure and Cut First Tread

3. Step 3: Measure Tread Width

   • 0:21–0:53 Measure Stair Tread Width
   • 0:00–0:03 Measure Individual Stair Components
   • 7:25–8:46 Measure Winder Steps Width

4. Step 4: Measure Riser Height

   • 1:44–2:33 Calculate Riser Height (Option 2) and Verify Code Compliance
   • 1:24–1:56 Repeat for All Risers and Measure Variation
   • 4:32–5:10 Calculate Individual Riser Height

5. Step 5: Check for Stair Squareness and Level

   • 1:11–2:23 Identify and Measure Out-of-Square Deviations
   • 12:00–14:21 Check Tread Level and Stringer Fit
   • 0:18–0:24 Verify Overall Frame Squareness, Plumb, and Level

6. Step 6: Document All Measurements and Irregularities

   • 3:09–4:52 Record All Measurements on Template
   • 0:00–0:03 Measure Individual Stair Components
   • 1:36–2:16 Measure Worn Sections for Code Compliance