Middle Atlantic Products UMS1-11.5. Type: Rack shelf, Product color: Black, Housing material: Steel. Width: 19" (483 mm), Useful width: 17.6" (44.8 cm), Depth: 11.5" (292 mm). Quantity per pack: 1 pc(s), Package width: 20" (508 mm), Package depth: 13.5" (342.9 mm)

Middle Atlantic Products DWR-RR16. Type: Rack rail, Product color: Black, Housing material: Steel. Width: 0.9" (22.9 mm), Depth: 1.3" (33 mm), Height: 28" (711.2 mm). Quantity per pack: 1 pc(s), Package width: 29" (736.6 mm), Package depth: 4" (101.6 mm)

Middle Atlantic Products MFR-RRK-20. Type: Rack rail, Product color: Black, Housing material: Steel. Package width: 3.75" (95.2 mm), Package depth: 36" (914.4 mm), Package height: 1.75" (44.5 mm)

Middle Atlantic Products ERK Rear Rail Kits 18 space. Type: Rack rail, Product color: Black, Housing material: Steel. Width: 1.41" (35.7 mm), Depth: 1.38" (35 mm), Height: 31.5" (800.1 mm). Quantity per pack: 1 pc(s)

Middle Atlantic Products MRK-Z4. Type: Anchoring bracket, Product color: Black, Housing material: Steel. Quantity per pack: 4 pc(s)

Middle Atlantic Products MK Ladder Adaptor. Product color: Black