:: Like any other building, wooden garden sheds need a sturdy, level base in order to stand the test of time and survive the elements. This means mixing and pouring a concrete slab for your shed to sit on.

:: It is, of course, crucial that the base is the correct size for your shed. One that’s too small is obviously no good, but neither is one that’s too big because rain will bounce off the concrete and soak the shed’s timbers. To get it right, take the exact measurements of the shed’s floor and subtract 2cm from the width and length to give you the size of your base. The concrete should be around 7.5cm thick, unless you’re laying it on soft soil, in which case it should be around 10cm thick. Roughly half of the concrete should be above ground level.

:: To prepare the ground, clear away any plants and debris, remove enough topsoil to allow the concrete to sit at the correct depth (see above) and compact the soil with a rammer (a long-handled metal or wooden tool used for compacting). If the soil Is really soft, you’ll need to lay a 5cm layer of compacted hardcore underneath the concrete.

:: Before you put the shed together, protect the timbers with two or more coats of wood treatment, preservative or stain, following the instructions on the tin. Ensure that you coat the floor and joists really well and don’t forget to do the internal timbers. As an extra precaution against damp, you’ll need to insert a damp-proof membrane between the base and walls of the shed when you build them.

:: When erecting the shed, get someone to help you, allow plenty of time and don’t attempt the job if it’s windy. Above all, follow the assembly and aftercare instructions carefully and your shed should last for years to come.

IF you need buy a new Garden shed then our selection on is second to none.

By Andrew Wilcox

I love sheds Founder & judge of Shed of the year - Wilco writes mainly about sheds. About the blog Enter your shed into #shedoftheyear