42 inch deep uprights are standard because a standard pallet used is 48 inches deep.
Upright height is based on how tall your ceiling height is and how tall your product you are storing on the beam levels will be.
Weight capacity is determined by the weight of your product being stored on each beam level.
Standard beam length is 96″ & 144″ because the standard pallet width is 42″ allowing for storage of two pallets side by side on a 96″ beams and 3 pallets side by side on a 144″ beam.
Most material can be delivered the next day.
We only quote in-stock material.