How to Make Concrete Block Molds

Written by tracy morris
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When working on your own garden construction projects, whether you are building a retaining wall or refinishing a patio, one of the materials that you will most commonly use is concrete blocks. You could spend your money on concrete blocks from a big box home improvement store, or you could make them yourself. Casting your own blocks is easy. All you need is concrete and a mould to cast them with.

Skill level:
Moderately Easy

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Things you need

  • 8 double-headed nails
  • Hammer
  • Measuring tape
  • 1 2-by-4 board, 8 feet long
  • Saw
  • Plastic dry-cleaning bag
  • Pencil

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  1. 1

    Measure the board and make a mark every 2 feet.

  2. 2

    Cut the board into four 2-foot pieces at the markings.

  3. 3

    Using double-headed nails, attach the pieces into a box shape. This will be the block form. Double-headed are designed to be easier to remove than regular nails, which will make dismantling the form that much easier once the concrete sets.

  4. 4

    Place the block form on a flat surface.

  5. 5

    Line the block form with a plastic dry-cleaning bag. Your block form is now ready for you to pour concrete into it.

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