Although a far easier (and cheaper) solution than a concrete base, it is still vital that a slab base is correctly constructed. Especially important is the fact that you need to set the rows of slabs at the correct spacings, and running in the correct direction (at right-angles to the runners on the underside of the floor, or the optional timber bearers, if specified.) These rows may be up to 2' apart, however it is important that you have a row where two-piece floor sections abut each other (if appropriate). The base must be firm, level, square and designed to suit the floor size of the selected building. When the appropriate company contact you to arrange a delivery date, ask them for a base plan, and make sure that you stick rigidly to this - failure to do so may mean that the building cannot be installed without alterations.

Tools Required:
• Pegs and string
• Flat Face Paving Slabs
• Building sand
• Standard cement, Rake
• Tape measure
• Spade
• Rubber mallet
• Sweeping brush


Step 1:
As mentioned decide where to position the shed in an optimal space, allow enough distance from hedges or fences for easy access to all sides. Using pegs and string to mark out the base 2 inch (5 cm) larger than the area of the building on each side. Finally, a measure diagonal to ensure the area is square.

Step 2:
Strip the topsoil and dig out to a depth of approx. 2.5 inch (7 cm) to accommodate the base. Level the area and remove the pegs.

Step 3:
Mix together one part cement to eight parts building sand for a dry sand and cement mix. Spread this evenly ensuring that the mix sits approx. 4 cm in depth. Now, rake this to a level.

Step 4:
Starting from one corner and working outward, lay the slabs by tapping down on the centre of each slab with a rubber mallet. Using a spirit level, ensure all the slabs are square, level and firmly butted together for a solid base.
Step 5:
The completed base should now be level and square. Do one final check with a long straight edge to check if the base is level from each corner, and also measure the diagonals to finally check the base is square. Brush off any excess dry sand/cement mix, which could hinder the levelling of the shed. The result is a smooth, sound, level base. The perfect foundation for the construction of a garden building.