21"d x 48"w Chrome Wire Shelving w/ 4 Shelves Variants:Chrome Wire Shelving with 4 Shelves - 21"d x 48"w x 96"h (SC214896-4) You'll want to use these

You'll want to use these uprights if you're creating 168"h heavy duty cantilever racking that organizes material on both sides

Keeps items from falling off shelving unit

This durable and functional unit features a clean design with a compressed wood top

Robust polymer construction resists moisture

flexible setup

21"d x 48"w Chrome Wire Shelving w/ 4 Shelves Variants:Chrome Wire Shelving with 4 Shelves - 21"d x 48"w x 96"h (SC214896-4) You'll want to use theseSimplify your space with our 21"d x 48"w 4 tier chrome wire shelving, a strong solution that's suitable for many business and home storage requirements. Open design for optimal air circulation, accessibility, and visibility Sturdy chrome plated steel construction 800 lb capacity shelves can be adjusted easily in 1" increments along posts Made for indoor use, dry storage only NSF approved To securely set or quickly remove shelves, tap their corners