4 prong zinc plated t-nuts are great for indoor residential climbing walls. They require more time to install than
Round Base T-nuts but you'll keep more $$ in your pocket!
We recommend 100-130 t-nuts for every 32 square feet of climbing wall surface. (a 7" x 7" grid will need 100 t-nuts per 4' x 8' panel) 4 prong t-nuts are much easier to install with
two people working together. Click on the pic to the left for a guide to installing 4 prong t-nuts.
For outdoor climbing walls we recommend using Stainless steel t-nuts.