If you've maxed out your 48"d Starter Shelf and want additional shelving, you need an Add-On Unit. Extend the life and length of your current shelving by adding a new section of shelving.
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Each tier is made of 14 gauge steel components, featuring (4) double rivet angle beams and a center support. Shelf levels adjust on 1.5" centers and fit into post slots, locking into place for added rigidity.
Each style of decking has its own benefit, make sure to pick the style that's right for you.