Rivetwell Boltless Shelving is designed to maximize storage space and minimize installation set-up time. All components are engineered to attach snugly to one another without the use of loose fasteners. This unique design has rivets which are factory attached to all left-to-right and front-to-back beams. The rivets align with keyhole slots in the vertical posts. Once tapped into place using a rubber mallet, the units are tightly assembled providing maximum strength. Available in single and double rivet models. Use Hallowell Particle Board or EZ-Deck decking (double rivet only) – sold separately.