A ladder profile leans the tiers back as they rise 63 in, so the deep lower shelves take heavy volumes while the upper ones stay light and open. Below the four display tiers sits a closed cabinet with two 8.5-in by 15-in doors, the place for router boxes, cleaning cloths, and anything that spoils the look of a display wall. Hydraulic hinges ease the doors shut instead of letting them slam, and round knobs give a firm grip. Each shelf holds 44 lbs on a powder-coated steel frame, with 12.5 in of clearance between levels.