What they Don't Tell You When Installing your Stair Runner DIY

Moments in this video

1. 3:53–7:38 Trim Excess Carpet and Prepare Final Riser From How to Install Carpet Stair Treads on Curved Stairs, Step 7: Secure Edges and Trim

   After stapling the second tread, the video demonstrates securing the nosing and then trimming the excess carpet for the third (and final, in this case) stair riser and the top landing. Begin by using a utility knife to cut away the excess carpet and underpad that extends past the top edge of the final riser. Then, use a tape measure and pencil to mark the desired cut line on the carpet underpad for the top riser. You'll mark both sides and use a straight edge to connect them. Carefully cut along these marked lines with a pair of sharp scissors or shears. The binding (the finished edge of the carpet) is never as tall as the pile itself, creating a 'kick' that helps it fit snugly.

2. 7:38–8:56 Install Final Riser and Top Landing From How to Install Carpet Treads on a Spiral Staircase, Step 6: Secure Edges (if applicable)

   With the carpet trimmed for the final riser, position it correctly. The 'kick' from the shorter binding should help it fit snugly against the top landing. If the fit is too tight, pull the carpet out and shave an eighth of an inch off the trimmed edge with scissors. Once fit, secure the top edge of the riser with staples, splitting the pile. Then, use a carpet tucker to push any excess or loose fibers tightly into the gap between the riser and the wall, ensuring a clean, finished look. If any edges appear like they might fray, apply a small amount of hot melt glue to seal them. Finally, secure the runner to the top landing with additional staples, again ensuring the pile is split to conceal the staples. For angled cuts at the side, staple those edges firmly and tuck them in with the stair tool as well.

Guides that use this video

• How to Install Carpet Stair Treads on Curved Stairs
• How to Install Carpet Treads on a Spiral Staircase