How to Make a Mold for Concrete Steps

Written by anthony smith
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How to Make a Mold for Concrete Steps

The key to success in many projects is preparation, and building a set of concrete steps is no exception. Preparation in this case involves the proper construction of a mould, or form, in which the wet concrete will be poured.

Skill level:
Moderately Easy

Things you need

  • Stakes
  • String
  • Shovel
  • Gravel
  • Tamper
  • Measuring tape
  • Circular saw
  • 2x4, 2x6, and 2x8 Lumber
  • Hammer
  • Nails
  • Light oil

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  1. 1

    Lay out the area in which you are going to build your steps with stakes and string. Dig out the area to a depth of six inches, and tamp the soil down firmly to compact it.

  2. 2

    Add two inches of gravel to the excavated area, spread until level, and again tamp down firmly.

  3. 3

    Begin with the top step's form first. Drive 2x4 stakes into the ground 1 1/2 inches out from the edge of the perimeter of the desired location for the form placement, and spaced 18 inches apart.

  4. 4

    Measure and cut lumber for the sides of the form. Use either 2x6, 2x8, or a combination of these lumber sizes for this, utilising the different sizes to reach the desired height of the steps using whole pieces as shown in the top photo.

  5. 5

    Slide the cut lumber into place against the 2x4 braces, check that they are plumb, and nail to the braces. Provide further bracing using 2x4 stakes out a short distance from the forms, and 2x4's nailed to both stakes at an angle as shown in the photo.

  6. 6

    Use a light oil to coat the insides of the form that will come into contact with concrete. This will make the separating of the forms from the cured concrete easier. You are finished constructing the moulds and are ready to pour your steps.

Tips and warnings

  • If you wish to have curved steps, use 1/4 inch plywood or hardboard for those areas of the forms.

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