SPG International Heavy Duty 5 Tier Slotted Shelving Collection Boltless Rivet DesignBaked Enamel FinishAvailable in 2 sizes. This rolling workbench features all steel construction with doors that are flush with the body of the cabinet and include 2 key locks. This will complement any garage. Whalen Storage Workbenches, shelving units General Garage Discussion. Boltless, wide span metal storage racks with wood decking give you extra space for bulky materials. These heavy duty racks have a boltless assembly with snap together. Application Areas. Revware is a leading metrology software and equipment manufacturer – reshaping your world, one product at a time. Costco sells these. If you buy more than one you can make a garage shelf. See the end of the video. These shelves will last forever, all metal construction. Excellent experienced customer service. Over 20,000 production furniture items. Every size, design, and applications online. Fast written quotes. Sign up to receive information about new products, style ideas and clearance specials. Rated 5 out of 5 by AndrewS from Whalen 4 Tier 77" (195cm) Industrial Storage Rack This racking is great, solid and sturdy. Sign up to receive information about new products, style ideas and clearance specials.