Making Lightweight Stepping Stones

If the weight of the finished stone is a consideration, the addition of perlite, pumice and peatmoss into a concrete mix reduces weight.

You can also add a styrofoam core without compromising the strength and durability of the stone. The procedure is simple.

Foam Core Stepping Stones

  • Size a 1/2″ sheet of styrofoam to fit inside mold, leaving a minimum 1″ between inner wall of mold and circumference of styrofoam.
  • Wrap styrofoam with a sheet of nylon fiber or wire mesh. This will help strengthen the finished stone.
  • Fill mold with approximately 1/2″ – 3/4″ of concrete; tap lightly to remove air bubbles. Place styrofoam on top of concrete, then pour additional concrete to cover styrofoam. Fill to top, shake lightly to level concrete.
  • To prevent styrofoam from floating to the surface, cover concrete with a sheet of plastic, then place a brick or stone in the middle of the mold. This will hold the foam in place.
Lightweight - Step 1

Place styrofoam on top
of concrete

Lightweight - Step 2

Pour additional concrete
to cover styrofoam

Lightweight - Step 3

Fill concrete to top of