How to Clamp Pieces of Wood At a Right Angle

Written by c.l. rease
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When building wooded boxes or cabinets, you need to clamp and secure the corners of the wooden structure at right angles. This can be a task, especially if you are working alone, unless you have corner clamps to hold the corners in place. Corner clamps come in a wide variety of styles, with most designed to clamp through dowel holes. There is a right angle wood clamp that you can use on both dowel-drilled corners and glued wood corners with no dowel holes.

Skill level:
Moderately Easy

Things you need

  • Safety glasses
  • (2) 90-degree angle clamps
  • Worktable
  • Two pieces of wood
  • Carpenter's square

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  1. 1

    Put on your safety glasses.

  2. 2

    Place the right angle clamp flat on the top of the worktable, near an edge of the worktable that allows you room to work around the right angle clamp.

  3. 3

    Turn the spindle handle counter-clockwise to open the jaws of the right angle clamp.

  4. 4

    Secure the right angle clamp to the worktable with table clamps. If your right angle clamp does not have table clamps, skip to step five.

  5. 5

    Place one piece of wood into one side of the right angle clamp and turn the spindle handle clockwise to put slight pressure onto the wood.

  6. 6

    Loosen the spindle handle slightly and slide the second piece of wood into the right angle clamp. Make sure that the corner where the two pieces of wood meet is tight and then tighten the spindle to hold the two pieces of wood in place.

  7. 7

    Set the carpenter's square on the inside corner, against both pieces of wood, to ensure that the corner is sitting at a 90-degree right angle.

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