My table build is documented in my LowRider v2 build thread. Doug Joseph (Design8Studio) Full-Sheet LowRider 2 "Build on a Budget"
It’s made of two torsion boxes (a la Ron Paulk workbench style), bolted together, and attached to a big rolling cart base. It’s big enough to address 4x8 sheets.
The LowRider v2 could “access” more square inches of a table top than a v3 can, but by a tiny amount. I had to be careful when upgrading from v2 to v3 to make sure I could still get full access to the sheet. I can also basically address all of a 49" x 97" sheet of MDF too.