How to Build a Triangle Coffee Table

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Using a shape that is not seen often in the coffee table world will help distinguish your handmade coffee table from those on the market. Triangle coffee tables offer all of the advantages of the standard rectangular and oval coffee tables, with an open and unique impression. A triangle coffee table can be built with only basic materials and tools, and limited carpentry experience. These plans can be adjusted as needed to make the coffee table larger, smaller, higher or lower.

Things You'll Need

  • Plywood board, 1-by-30-by-30-inch
  • Tape measure
  • T-square or yardstick
  • Pencil
  • Saw
  • 3 posts, 2-by-2-by-18-inch
  • Wood screws, 2-inch
  • Wood screws, 3/4-inch
  • Sandpaper
  • Stain or paint
  • Brush
  • Sealant
  • Set a yardstick or T-square on top of a 1-by-30-by-30-inch board, so that it passes from one corner to the corner opposite it diagonally. Mark this line, and cut the board in half with a saw to make two triangles, one of which will be the top board and one of which will be made into the support board.

  • Set the better quality board of the two aside to be the top board and place the remaining support board on the working surface. Position the yardstick along one of the edges of the triangle and move it two inches inward toward the center of the triangle. Draw a line along the yardstick to make a smaller triangle. Cut along the line with the saw.

  • Set out 3 2-by-2-by-18-inch posts, standing upright and position the support board on top of them. Slide each post into one of the corners of the support board, so that it is about 1/2 inch from each edge.

  • Drill two holes down through the support board and into each post, using a drill bit with a diameter that is visibly smaller than the diameter of the wood screws you will be using later. Set 2-inch wood screws in each drilled hole, and tighten them down into the support board and posts with a drill.

  • Set the triangular tabletop board upside down on the working surface. Lower the support board and its attached legs upside down on top of the tabletop board. Drill four holes through the support board and into the tabletop board, taking great care not to puncture the surface of the tabletop board. Space the holes with one halfway from each corner and one in the middle. Set 3/4-inch wood screws in each of the holes and tighten them through the support board and into the tabletop board using a drill.

Tips & Warnings

  • Stain or paint the tabletop as desired to match the room decoration. Sand the corners and edges of the tabletop so they are not sharp.
  • Soften or cut off sharp corners in homes with small children, as they may present a falling hazard.

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  • Photo Credit Jupiterimages/Comstock/Getty Images
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