How to Install a Concrete Plinth for a Shed

A plinth is commonly defined as a block or slab on which a column or pedestal is based. When we discuss a plinth for a shed, we mean one of several concrete piers or small platforms that the shed rests upon. Properly built plinths will provide a solid foundation for your shed. They're ideal for prefabricated sheds that have their own flooring system, since the shed can be constructed on top of multiple plinths.

Square tip shovel
Tape measure
1-by-6-inch boards
Circular saw
6d nails
Hammer
Level
Concrete mix
Trowel

Instructions

- 1
  Dig a 6-inch-deep square hole measuring 12 by 12 inches with a square tip shovel.
- 2
  Cut two 12-inch long and two 10-inch long pieces of 1-by-6-inch board with a circular saw. Nail the boards together to make a square form that measures 12 inches on each of the outside edges.
- 3
  Place the form on the top of the hole. Place a level on the top edges to ensure that it is level. This is important, since the top edge of the form represents the top edge of the plinth.
- 4
  Mix concrete and fill the hole to the top of the form with the concrete. Use a trowel to smooth the top of the cement even with the top of the form.
- 5
  Remove the form when the concrete is dry. Use the same method to make any additional plinths for the shed's foundation.

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