Determine Tread Overhang and Length

What happens in this clip

Determine the exact dimensions of the treads, considering a minimum run of 10 inches and an acceptable overhang (e.g., 3/4 inch to 1 1/4 inches). If using 2x12 lumber for treads (actual width typically 11 1/4 inches), a 10 1/4 inch run will allow for a 3/4 inch overhang. This overhang, often called the nosing, adds to comfort and aesthetics. Note that the riser board thickness is factored into the total run.

Goal: Establish tread dimensions including nosing.

What's used

Tools

• 2x12 Lumber
• Laminated veneer lumber (LVL)
• Tape Measure Milwaukee

About the full video

This project provides a detailed guide on how to build L-shaped stairs with a landing, from calculating rise and run based on local building codes and flooring thickness, to cutting stringers, framing the landing, and installing risers and treads. The instructions emphasize precision in measurements and adherence to safety and comfort standards for stair construction.

Step 2 of 4: Measure Nosing Overhang

Position the tape measure at the vertical surface of the riser directly beneath the nosing. Extend the tape measure horizontally out along the underside of the nosing until you reach the very front edge of the tread. Record this measurement as the nosing overhang.

Open this step in the guide

Every video in How to Measure Stair Tread Depth and Nosing Overhang

1. Step 1: Measure Stair Tread Depth

   • 0:54–1:39 Measure Stair Tread Depth
   • 0:57–1:16 Measure Treads and Mark Laminate
   • 0:24–0:56 Understanding Tread Depth and Nosing

2. Step 2: Measure Nosing Overhang

   • 0:55–1:13 Measure and Mark Tread and Nosing
   • 5:03–6:09 Determine Tread Overhang and Length (this video)
   • 0:28–1:15 Measure and Mark Nosing Length

3. Step 3: Measure Total Tread Depth (Including Nosing)

   • 0:57–1:16 Measure Treads and Mark Laminate
   • 0:54–1:39 Measure Stair Tread Depth
   • 0:31–1:01 Measure Riser Height and Tread Depth Consistency

4. Step 4: Record Measurements

   • 0:57–1:16 Measure Treads and Mark Laminate
   • 0:31–1:01 Measure Riser Height and Tread Depth Consistency
   • 0:55–1:13 Measure and Mark Tread and Nosing