TuscanStone Bench B Instructions How to build TuscanStone Bench B from Mutual Materials. Items Needed: TuscanStone blocks, Glue: 4 (10.5 oz tubes) Tools Needed: Level, Caulking Gun Download as PDF Step 1: Prepare the project area Prepare a stable, level project area by following these steps. Excavate area approximately 5″ below grade. Excavate approximately 6″ larger than the actual project dimensions. Fill 4″ with suitable base material, compact and level in all directions. If installing on an existing patio or suitable base you may proceed to install the project after ensuring the base is level. Step 2: Stack TuscanStone blocks Stack TuscanStone blocks, adding adhesive between layers.