Show Solutions Extension support frame with screw jacks with 20.5" box truss bolt pattern for SS-block

An extension support frame for the SS-block, fitted with screw jacks and drilled to the 20.5-inch box truss bolt pattern. The screw jacks are the working part: they let a crew level the assembly and take up slack on an uneven or sloped deck, which is what keeps a tall structure plumb once it is loaded. Bolting to the 20.5-inch pattern means it integrates with the larger Pro Series truss rather than the 12-inch range. Truss sections, base plates and the SS-block itself are ordered separately.