Measure and Cut Carpet

What happens in this clip

Measure the width of the stair tread from stringer to stringer (e.g., 36 1/8 inches) and the depth from the nose to the back riser (e.g., 13 inches). To allow for trimming and a snug fit, cut the carpet pieces slightly larger than these measurements (e.g., 37 inches wide by 14 inches deep). Use a utility knife and a straight edge to ensure clean, straight cuts. You will need one carpet piece per tread.

What's used

Tools

• Straight Edge
• Tape Measure
• Utility Knife

About the full video

This video provides detailed, step-by-step instructions on how to install carpet on stair treads using various trim tools to achieve a clean, professional finish. It covers preparing the stairs with tack strip and underpad, precise carpet cutting, and techniques for stretching, stapling, and tucking the carpet for a polished look.

Step 2 of 5: Measure and Cut Carpet Treads

Using a measuring tape, carefully measure the length and width of each metal stair tread. Transfer these measurements to the carpet tread material. Use a sharp utility knife or carpet shears to cut each tread to size. It's often helpful to cut a template from paper or cardboard first to ensure accuracy before cutting the carpet. For spiral stairs, pay close attention to the curve and the outer edge.

Open this step in the guide

Every video in How to Install Carpet Treads on Metal Spiral Stairs

1. Step 1: Clean Metal Spiral Stairs

   • 0:16–0:24 Clean and Prepare Staircase Substrate
   • 3:28–4:20 Rinse and Dry Stairs

2. Step 2: Measure and Cut Carpet Treads

   • 7:20–9:07 Measure and Cut Carpet (this video)
   • 6:25–8:58 Measure and Cut Carpet Sections
   • 0:12–0:57 Measure and Cut Carpet Tread

3. Step 3: Apply Adhesive to Treads

   • 1:16–2:09 Install Carpet Treads with Adhesive
   • 0:05–0:06 Apply Adhesive to Treads
   • 0:04–0:08 Apply Spray Adhesive

4. Step 4: Install Carpet Treads

   • 0:04–0:06 Install Carpet Treads
   • 1:16–2:09 Install Carpet Treads with Adhesive
   • 0:05–0:18 Install New Self-Adhesive Carpet Stair Treads

5. Step 5: Trim Edges and Secure

   • 0:43–1:28 Position and Secure Carpet Runner
   • 4:16–5:03 Tuck and Staple Carpet Edges
   • 22:17–35:01 Repeat for Remaining Treads and Final Checks