How to Set Up Concrete Slab for Your Garden Shed?

A single story roof structure placed in the backyard or in the corner of a garden is known as garden shed. Sheds require a durable and a long lasting base. People usually avoid putting their shed on a pallet, cobble stones; rather they likely choose a concrete slab. If one wants a strong foundation he/she must go for this.

Though it looks like a small simple part of an overall construction process, but getting the foundation right is incredibly important as a little mistake in it will only get worse as you go up.

Following are some steps you should follow while setting up a concrete slab for your garden shed:

  • Once a shed is located on its perfect position one should always avoid its relocation. Locate it up in such a way that good air circulation will add lifespan to it.
  • A quick analysis of your garden to build up a shed is needed. Checking out the soil and air circulation is most needed.
  • Once you have chosen a site, clear the area and remove any grass if needed.
  • Roughly make a structure where you’ve planned to put your slab; determine how much of digging you will need.
  • Determine all the measurements and pegs you will need. Always remember, the recommended slab size should be 50mm-100mm larger than your shed’s external dimensions.  When it comes to rebated section, it will be 50mm less than the external dimensions.  Depth of the rebate should be 20mm.   Slab size should be around 3.05m or 3.1m, depending on your preference.  The rebated area should then be 2.95m x 2.95m.

Here is a detailed rebated slab dimensions and recommended anchor sets for Easy SHED models:

You need to create a frame to pour the concrete into; measuring and constructing the box away from where you plan to put the slab is the best way to avoid inconvenience.

Once you have dug the area out and made up to the level, place the box in the area.

Now that the boxing is in position, build up a level. Support these timbers, nailed or screwed to create the frame the corners, with supports on the outside edges of the frame. In some cases, you may need more than one peg or screws on the side.

It is important to check the depth of the area you will be filling with concrete. As if it’s less or more; the concrete will flow outside the box.

Use a spirit level every now and then to check the depth of the area within the box.

Fill in the concrete and level it up with shovels to the height of the boxing.

Screen the concrete off with aluminum screen or length of timber. To keep it up to the mark.

Keep out the concrete for around half an hour to let it dry, then complete rebate with an edging tool.

Wait for a day or so depending on your weather conditions, and then use it!

Published by

Corey Horn

Garden Shes in New Zealand

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