Measure the stairs, including tread width, tread depth, riser height, and total stair length
Choose a runner width that leaves equal exposed stair on both sides
Calculate the runner length, adding extra for waste, pattern matching, and turns
Clean the stairs thoroughly and remove old carpet, staples, nails, and debris
Inspect each step for damage and repair any loose boards or squeaks
Mark the centerline of the stairs to keep the runner straight
Install carpet padding if required, trimming it to fit inside the runner width
Secure the padding with staples or carpet tape, keeping edges neat
Start at the top or bottom depending on the stair layout and installation method
Position the runner so it is centered and aligned with the stair marks
Attach the runner at the first step using staples, carpet rods, or tack strips
Pull the runner tight over the tread and down the riser to remove slack
Fasten the runner at the back of each tread and the base of each riser
Use a stair tool or carpet kicker to press the runner firmly into corners
Continue step by step, keeping tension even and alignment straight
Fold corners neatly for a clean finish at each tread and riser
Trim excess material at the top and bottom for a proper fit
Secure the ends with staples, adhesive, or a finishing bar as needed
Check for wrinkles, gaps, or uneven alignment and adjust before final fastening
Vacuum the runner and inspect all staples and edges for a tidy finish