Custom Clearance Bars manufactures custom clearance bars, height warning bars, and overhead clearance indicators in Schedule 40 PVC for parking garages, warehouses and loading docks, drive-thrus and canopies, and any entrance with low overhead clearance. Bars are cut to your opening from 48 to 144 inches long in 4", 6", 8" and 10" thicknesses, with stock, premium and custom-matched colors, reflective lettering and end stripes, and hook-and-chain mounting kits. Measure your opening, build your bar online, and approve the delivered price before payment. Production timing is confirmed with your order.