Create large 1750-3500lb blocks with our Big Block Form Kit. This 2 pc form holds nearly a yard of concrete to create a 40″x40″x29″ Big Block or 20″x40″x29″ Half Block. You can also custom fill the block between 1750 and 3500lbs to create a size that works for you. Note […]
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Upgrade your standard plywood base to our High Density Polyethylene Base. Impervious to water and stronger than our standard plywood base. Works with your standard square rubber knockout (not included). Dimensions: 24″x26″x.75″ Color: Black