That’s it for pegboard fixed flat to the wall: fitters all slide this 15 mm spacer behind before hanging a single hook
Professional workshop installers know a simple secret that saves countless hours of frustration: a tiny 15mm spacer tucked behind pegboard before mounting transforms a useless panel into a rock-solid storage solution. Without this gap, hooks either won’t insert or drop out under load — it’s pure physics, not a product flaw.