Packing List: 3 Set x Overhead Garage Storage Rack with Spare Parts Size of Ceiling Bin Storage Rack: 17" x 3" x 3" (Please refer to size map for details) 1 Set can be used for 16" joists, 2 Sets for 24" joists Equipped with drill bit, users can easily drill holes for the overhead garage storage rack according to actual situation Compared to original overhead garage storage rack, this ceiling bin storage rack is designed to fit dual side of garage shelf, save more space Andorm overhead garage storage rack is made of 13GA powder coated metal plate to be more heavy-duty and anti-rust. Max load capacity: 180 lbs Andorm Updated 3 Set Overhead Garage Storage Rack Heavy Duty 13 Gauge, Ceiling Bin Storage Rack for Tote Container, Garage Storage Organization System Black