How to Craft Concrete Molds for Garden Benches

Add a garden bench to your yard to provide a place to rest and enjoy the garden’s splendor. Alternatively, decorate a garden bench with stones, beads or seashells to create a decorative concrete structure for your yard. Store-bought benches are expensive. While making your own seems like a daunting task, use playground sand and quickset concrete to create your own custom garden bench in little time.

Things You'll Need

  • 20 pounds playground sand
  • Tarp
  • Trowel
  • 5 pounds quickset concrete
  • 5-gallon bucket
  • Garden hose

Instructions

    • 1

      Empty 20 pounds of playground sand onto a tarp. Mound the sand with your hands to create an 8-by-18-by-40-inch pile. If the sand is too loose and does not stick together, add 1 cup of water to it and mix it together with your hands.

    • 2

      Draw the shape of the bench seat on top of the sand pile, using your finger. Once you are happy with the shape of the bench, dig a 3 inches deep by 12 inches wide and 36 inch long rectangle in the sand. Smooth the sand flat against the walls of the rectangle using your hands or a trowel.

    • 3

      Prepare a 5 pound batch of quickset concrete in a 5-gallon bucket following the manufacturer’s directions. Add enough water to create a pudding-like consistency. Stir until the concrete is smooth.

    • 4

      Pour the prepared concrete into the sand mold. Smooth the top of the concrete with a trowel.

    • 5

      Let the concrete sit for 72 hours. Remove the concrete bench top from the sand. Spray the surface of the bench top with a garden hose to remove any sand stuck in it.

    • 6

      Let the concrete dry another 72 hours. Set the completed bench on a store-bought bench stand.

Tips & Warnings

  • If desired, press small stones, glass beads, seashells or mosaic tiles into the sand along the edge of the bench. When you fill the mold with concrete, the objects will stick to it, giving a decorated edge to the bench seat. If you want the bench colored, add concrete tint to the wet concrete prior to pouring it. To clean up the sand, pull the corners of the tarp together and discard the sand.
  • Concrete has a drying effect that may result in concrete burns to sensitive skin. To protect your hands while working with the concrete, always wear protective gloves. Wear a face mask and eye protection when mixing the concrete to keep the fine powder out of your eyes and lungs.

References

  • Photo Credit Stockbyte/Stockbyte/Getty Images

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