4 differant units of storage. Different sizes front 2 units on trailer are matched pair. The matched pair measure 8' tall 12' long and 4' wide. Very heavy built they had 7 to 8 tons of nuts and bolts in each unit. Other storage units on trailer very in size. All steel units. Call for more measurements and more info on what is all available not all are pictured! Cash only (prices vary) 620-388-3973