Stair Nosing / Edge Protector

A stair edge protector you can permanently screw to the edge of your stairs. The grip lines alternate height slightly for maximum grip while protecting the wooden edge of your stairs. I designed this to be printed in 3 pieces per stair for a set of stairs about 33 inches wide. You can scale the length up or down a bit to match your requirements accordingly. Use 3/4 or 1 inch pre-drilled brass truss-head screws to secure them though most screws with a wide flat head should work okay. Use some nice silk copper or wood PLA for indoor stairs, though it won't wear as nicely as PETG.

Note that the edge is designed to cup around a ~1 inch overhang top piece of stair, if your stairs are perfectly square, you may need to cut / negate the bottom lip off.