How Do I Expand My Concrete Back Porch?


Many houses come with a small concrete patio just outside a back door. This is a nice feature that helps you entertain guests in an open setting. However, in most cases, the patio is about 10-by-10 feet, which is too small if you have more than a couple of visitors. If you entertain several guests at one time, consider expanding the porch area to give you more room. Several options are available to help accomplish this task.

Things You'll Need

  • Shovel
  • Gravel
  • Sand
  • Level
  • Patio stones, pavers or bricks
  • Power saw
  • Dig out the grass and soil around the outer edge of the patio to a depth of 6 inches, plus the thickness of pavers or stone you are going to use around the patio. You can use just gravel for the extension, in which case dig down just 4 inches.

  • Place a level in the dug-out area to help match the slope of the patio.

  • Pour crushed gravel into the dug area until it is slightly higher than the patio if you are using only gravel. If you plan on laying stones or pavers on top, add 4 inches of gravel. Tamp the gravel down.

  • Add 2 inches of sand on top of the gravel and tamp it down.

  • Place the patio stones or pavers over the sand, if you are using them, to extend the concrete surface with a decorative border. If using bricks, decide on the pattern of the bricks and place them on the surface. If the bricks need to be cut, use a masonry wet saw.

  • Toss shovels of sand on the surface of the stones, pavers or bricks. Sweep the sand across the surface to work it into the cracks between the material.

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