Shed Base Installation in Surrey
A properly built base makes the difference between a shed that lasts and one that rots within a few years, GK Landscapes installs concrete and paved bases across Surrey.
The Foundation of Any Outbuilding
A shed or outbuilding is only as good as its base. An uneven, poorly drained base causes the floor to flex and warp, the door to jam, and condensation to build up underneath, leading to premature rot in the floor and structure. An outbuilding on a solid, level, well-drained base can last decades.
GK Landscapes installs concrete slab bases and paved bases for sheds, summerhouses, garden rooms and outbuildings. Every base is laid level, drained correctly, and sized accurately for the structure going on it. This is often the first phase of a garden room project, done right from the start, it sets the whole build up for success.
Concrete vs Paved Base
Concrete slab, the most common and cost-effective option for sheds and outbuildings. Strong, permanent, and gives the structure a solid platform. Paved base, slabs laid on a mortar bed give a neater appearance and are sometimes preferred for summerhouses and garden rooms where the perimeter will be visible.
- Free no-obligation quote, site visit always included
- Clear written price before any work starts
- Patrick Greenwood personally on site
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- No subcontractors on standard jobs
- No deposit required on most jobs
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Frequently Asked Questions
The base should be exactly the footprint of the shed, or fractionally larger if the shed has an overhang. Most shed suppliers give the external dimensions of the shed in their specifications. GK Landscapes will confirm the correct base size at the site visit.
100mm (4 inches) of concrete is standard for a domestic shed base. Heavier structures (large garden rooms, workshops with heavy machinery) should have 150mm. The concrete is usually reinforced with A142 mesh for larger bases.
Concrete achieves its working strength within 3–7 days and is fully cured at 28 days. A shed can typically be placed on the base after 3–5 days. For heavier garden rooms, it is best to allow the full 7 days before construction begins.
The base itself does not require planning permission. Whether the shed or outbuilding on top requires permission depends on its size, height and proximity to boundaries. Patrick advises on planning requirements for the overall outbuilding project at the site visit.
Yes, the base needs to be level regardless of the ground beneath it. On sloping ground, this involves building up the lower side or cutting into the higher side to create a level platform, with appropriate edge retention. Patrick assesses the ground conditions and the right approach at the site visit.