If you're out of space on your 48" deep, 4-shelf heavy-duty boltless shelving and need additional storage, you'll want an add-on unit. This solution extends the length of your existing starter unit by adding a new section of shelving.

• Expands Rivetwell heavy-duty boltless shelving starter units
• Made of cold rolled steel with powder coat finish for durability
• 3"d x 1-7/8"w x 84"h T-posts
• Levels adjust on 1.50" centers
• Optional 5/8" thick particle board decking provides stable storage surface
• Configurable with casters (sold separately here)
• Minimal assembly

To ensure rivets are properly set on posts, firmly tap beams with a rubber mallet.

Availability: Stocked in our warehouse. Ships next business day.