How to Extend a Circular Dining Table


Adding a temporary top to your round table will allow you to comfortably seat more guests. With a temporary tabletop, you can safely increase the size of your table by up to 25 percent. This will allow you to turn a 4-foot-diameter table into a 5-foot-diameter table, to increase your seating capacity from eight to 10.

Things You'll Need

  • 3/4-inch plywood
  • Thumbtack
  • String
  • Marker
  • Jigsaw
  • Router
  • Sandpaper
  • Table pad
  • Nonslip shelf liner
  • Measure the diameter of your current table. Your temporary tabletop can have a diameter of 1.25 times this measurement or less.

  • Draw your new table onto the plywood with a string compass. Tie a pen to one end of a piece of string and tack the other end to the center of the plywood with the pen half the diameter of the new circle away from the tack. Draw the circle, keeping the string tight at all times. Cut out the circle with a jigsaw.

  • Rout the outside of the circle to create a smooth, rounded edge. This step is optional, but it will help lighten the wear on your tablecloth and will make the edge of the table more comfortable for your guests.

  • Sand the edges to prevent splinters and wear on your tablecloths. Protect your current tabletop with a pad or heavy cloth. Put a large piece of nonslip shelf liner on the table to prevent the new top from slipping.

  • Center the new tabletop on your old table. Be sure the new top is perfectly centered to prevent tipping.

Tips & Warnings

  • If your table wobbles at all, don't use it.
  • Do not use a lightweight plywood. People will be resting their elbows on this table, and you don't want them to be able to tip it off.

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  • Photo Credit table ronde et verres image by Bruno Bernier from
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