Build A Modular Workbench

Looking for a versatile workbench that can adapt to your space? This modular workbench design is created by Bear Mountain Builds, and it’s perfect for any workshop, big or small.

Materials and Tools Needed

  • Materials:
    • 3/4-inch sanded plywood (1 sheet)
    • 2×4 lumber (for the frame and legs)
    • 4-inch heavy-duty casters
    • Wood glue
    • Construction wood screws
    • Latch clamps
  • Tools:
    • Circular saw or table saw
    • Planer (optional)
    • Drill and drill bits
    • Pocket hole jig
    • Clamps (90-degree positioning clamps recommended)
    • Measuring tape
    • Carpenter square

Step 1: Cut the Plywood

Start by cutting a piece of 3/4-inch sanded plywood into four equal sections. Each piece should be approximately two feet by four feet, but this may vary depending on the original size of your sheet. Make sure the grain runs lengthwise.

Cutting plywood into sections

Step 2: Build the Frame

Next, cut the 2x4s for the frame. If you have a planer, run them through to crisp them up, though this isn’t necessary. The frame will consist of legs and stretchers that create a sturdy structure.

Building the frame

Step 3: Assemble the Legs

The legs are made from a long and a short piece to form a lap joint. Apply wood glue to the short piece and position the long piece over it, using spacers to ensure the joints are even. Secure them with screws.

Assembling the legs

Step 4: Assemble the Side Frames

With the legs assembled, cut out the stretchers and begin putting together the side frames. Use clamps and a carpenter square to ensure everything is flush and square. Pre-drill holes to avoid splitting the wood.

Assembling side frames

Step 5: Drill Pocket Holes

Drill pocket holes in the cross pieces. This will allow you to attach the top and bottom sections securely. Consider making a measuring stick for consistent hole placement.

Drilling pocket holes

Step 6: Assemble the Cross Pieces

Using 90-degree clamps for easy assembly, attach the cross pieces to the side frames. Ensure everything remains square and tight during assembly.

Attaching cross pieces

Step 7: Attach the Casters

Once the frame is complete, attach the casters using lag screws. Position them carefully to avoid interference with pocket screws from the frame.

Attaching casters

Step 8: Attach the Plywood Tops

Notch out the plywood for the bottom platform and secure the tops with pocket screws. This will provide a clean look while allowing for easy replacement later.

Attaching the plywood tops

Step 9: Final Assembly and Adjustments

Check the square of your frame by measuring the diagonals. Adjust as necessary to ensure everything is aligned. Sand the tops and round the edges for a finished look.

Final adjustments

Step 10: Connect the Workbenches

To make the workbench modular, install latch clamps on the insides of the legs. This allows you to connect or disconnect the two tables easily, creating a larger workspace when needed.

Connecting workbenches with clamps

Final Thoughts

This modular workbench is not only practical but also a fun project for beginners and experienced woodworkers alike.

Video

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