Adjustable Door Clearance Clearance Spacers allow you to adjust the gap between your door and wall. Machined to match our wall standoffs, they're stackable in various combinations to achieve the exact clearance your installation requires. When You Need Clearance Spacers Most installations don't require Clearance Spacers. You'll only need them if you have: Thicker-than-normal skirting boards Light switches or obstacles on the wall A thicker barn door (over 40mm) Product Details Available in 6mm and 10mm thicknesses Stackable for custom clearance combinations Dulux black powder coating to match your system Simple installation Not sure if you need these or which size?Use our clearance calculator or contact us — we're happy to help you determine the right fit. View our warranty.