Drop 1200 Interested? Please Contact us All volumes can be bolted on or screwed on, are made of 13 layer ¾ inch (18 mm) high quality birch plywood, and coated with our special Blocz texture. - One of our largest volumes- Symmetrical volume- Bomber T-nuts (metric T-nuts available upon request) Length 47 inches Width 39 inches Height 9, 4.5 inches T-nuts 94 Design options Base plate