Start by setting the workbench height based on whether you'll stand or sit at it. A standard sitting workbench measures 30 inches high, ensuring ergonomic comfort for extended use.
Cut four legs and create a dado cut at the top of each. Assemble the workbench in two main sections: front legs connected by crosspieces, and rear legs similarly joined.
Use a framing square to align a leg perfectly with a crosspiece. Pre-drill holes at the top joint, then secure with screws for a strong connection.
On the leg side, pre-drill two holes for 4-inch lag bolts. Insert bolts with round washers and drive them fully into the wood. Repeat for all four legs to ensure rock-solid stability.
Secure support pieces to the middle of the legs. Connect front and rear frames using square washers and 8-inch lag screws. Lag bolts sit flush; reinforce all joints with additional bolts for maximum durability.
Install crosspieces at the top to support your poured concrete countertop. Fasten with cap screws and square washers, then bolt intersections for reinforced strength.
