How to build a wood garage workbench

Written by mark morris
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How to build a wood garage workbench
Heavy-duty plywood makes a great workbench top. (construction ,measuring image by Greg Pickens from Fotolia.com)

Building a garage work bench against the wall will save space and maximise your floor space. You will need to locate studs in your wall to attach to. Build your workbench top from 1.8 cm (3/4 inch) cabinet grade plywood and add a 5 by 10 cm (2 by 4 inch) frame to support even the heaviest work loads. Locate your bench over a wall plug for access to electricity. Paint or stain your bench for a finished look or leave it raw to save time and money.

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Instructions

  1. 1

    Locate studs in your wall with a stud finder. Place the locater flat against the wall and press the buttons on either side. Move the locater along wall. As it passes a stud, it will light up and beep. Mark the location. Mark all studs where the bench will be located.

  2. 2

    Cut frame pieces from 5 by 10 cm (2 by 4 inch) timber. Cut three at 1.2 m (48 inches) for front, back and a support cleat, three at 52.5 cm (21 inches) for ends and middle braces and two mitred braces cut at 45 degrees at each end with mitres angled toward each other, with the long edge at 75 cm (30 inches). Cut a bench top from 1.8 cm (3/4 inch) plywood to 60 cm by 1.2 m (24 by 48 inches).

  3. 3

    Create a 60 cm by 1.2 m (24 by 48 inch) rectangle from two 1.2 m (48 inch) and two 52.5 cm (21 inch) 5 by 10 cm (2 by 4 inch) boards. Set the two long 5 by 10 cm (2 by 4 inch) boards parallel to each other 52.5 cm (21 inches) apart, standing on edge. Set one 52.5 cm (21 inches) 5 by 10 cm (2 by 4 inch) boards between and flush with the ends of the parallel boards. Screw through the faces of the long pieces into the ends of the short pieces. Use two 7.5 cm (3 inch) treated deck screws in each joint.

  4. 4

    Add the remaining 52.5 cm (21 inch) piece in the centre of the frame running parallel to the two 52.5 cm (21 inch) ends. It should be centred 60 cm (24 inches) from either end. Screw through the 1.2 m (48 inch) pieces into either end of the 52.5 cm (21 inch) piece. Set the plywood top on top of the frame and flush all four edges up. Screw through the top into the edges of the 5 by 10 cm (2 by 4 inch) frame. Use 4 cm (1 5/8 inch) screws every 15 to 20 cm (6 to 8 inches) around the edge. This is your bench top.

  5. 5

    Mark a horizontal line between two studs 1.2 m (48 inches) apart, 75 cm (30 inches) above the floor. There will be two studs between them. Use a level as a straight edge to mark the line. Set the remaining 1.2 m (48 inch) 5 by 10 cm (2 by 4 inch) board below this line and attach with 7.5 cm (3 inch) screws into the studs along the line. This is your support cleat.

  6. 6

    Set your work top on top of the support cleat. Center it and drive screws into the two centre studs through the back 5 by 10 cm (2 by 4 inch) board of the work top frame. Use two 7.5 cm (3 inch) treated deck screws in each stud.

  7. 7

    Drill pilot holes through the long edge of the mitred support 5 by 10 cm (2 by 4) boards. Drill two holes at each end, one 2.5 (1 inch) from the end and centred in the edge of the support, one 5 cm (2 inches) from the end. Position braces under each 5 by 10 cm (2 by 4 inch) board end of the work top with the opposite end against the wall centred over the stud. Drive 7.5 cm (3 inch) treated deck screws through the pilot holes into the bottom edge of the work top and into the wall stud.

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