Use a formwork to make the shape of the base

How to build the perfect Shed Base …

A shed base is a very integral part of building a shed because a well-made shed base is necessary to give your shed a solid foundation. All garden buildings must be assembled on a firm and level base which must be constructed with correct and durable materials. A faulty base can make your construction difficult and your products deteriorate fast. Building a shed base might sound like a complicated task but this write-up will help to break the spell and make sure you build a decent and strong shed base.

The first question that might pop up in your mind is “where do I build a base for the shed?”. There are a few rules to follow regarding this;

  • Never make your base too close to a fence or a wall
  • Avoid making your base close to trees or large bushes. The overhanging branches could come in contact with your building in the future, it is advised that you cut these branches in advance.
  • Make sure that the position of the base will allow you access to all the sides of the garden building in case you need to apply wood preservatives and treatment.
  • Make a visual representation of the garden in your head.
  • Take note of the distance of the shed to electricity and water.

Following these steps, it will be easier to decide where to locate your shed.

How to choose the right type of base …

A dry and level foundation is very important for building a shed. For large buildings like workshops, using a full concrete base is the best option. There are two popular types of shed base

  • Paving slab base
  • Concrete base

Regardless of the type of base you choose to use, it is recommended to have a 2-inch (5cm) lip around the shed base. To get the size of the base required for your building, add 4 inches to the base dimensions to get an appropriate base size for the shed.

Concrete shed base

Building a slab shed base …

For this base, you will need pegs and strings, flat face paving slabs, building sand, standard cement, rake, tape measure, spade, rubber mallet, and a sweeping brush.

  1. You need to mark out your base: You may first have to decide the location of your garden shed and take all due precautions. Using pegs and strings, mark out your base. You need to remember that your base will be two inches (5 cm) larger than the area of the building on each side. Also, test the accuracy of the size by measuring the two diagonals to confirm the area is a square.
  2. Dig the topsoil out to a depth of about 2.5 inches (7 cm) to fit the base. You would need to level the area with a base and remove all the pegs.
  3. Mix the cement and dry building sand in the ratio of 1:8 for a dry mix. Spread this mix evenly and ensure it is level and also sits approx. 4 cm in depth.
  4. Start by laying the paving slabs from a corner and work outwards. You will lay the slabs by tapping a rubber mallet on the center of each slab. You would also need to use a spirit level to ensure all the slabs are even, square, and firmly held together for a solid base.
  5. Confirm if your base is level and square using any straight piece of material you can find. Brush off all excess dry mix and you’d get a smooth and level square base.

Building a concrete shed base

For building a concrete base, you will need pegs and strings, building sand, standard cement, timber (for the base formwork), tape measure, spade, and sweeping brush.

  1. First, you’d need to mark out your base after following due precautions.
  2. You need to level off the base area. A concrete base would usually require 3 inches (7.5 cm) of compacted hardcore ( all-in ballast or other crushed gravel)  underneath the 3-inch concrete layer.  Don’t forget to level the area with a rake and remove all pegs.
  3. A leveled formwork should be made, you would need to measure, cut, and fit timber into the shape of the base. Check if your formwork is square and level, then proceed by spreading a layer of compacted hardcore and cover with a decent amount of sand. You will also need to flatten it down with a roller.
  4. Add water to your bag of dry concrete mix. Spread the concrete mix evenly slightly above the formwork and level it.

 After drying, you should have smooth and solid concrete.

If you require concrete for your shed base then we have the perfect ready mix for you with our MaxiFloor mix.