Bases for Timber Buildings

All of the Shields Buildings timber buildings will require a base of some kind. If the site is not level then this may require some excavating. If this is the case, always make the site larger than the building to provide airflow around the sides of the building.

Buildings with a timber floor

These buildings will require a level site. This may be of earth, stone, concrete or tarmac. Generally, only purpose built concrete pads will be perfectly level. If the site has a small slope of less than 40mm per metre, then heavy timber bearers can be supplied to form a level platform. These will be set level with the use of packing and concrete blocks where necessary.

Sites that slope more steeply should be levelled first.

Larger buildings should have a stone or block base. The stone should be of 40mm scalpings. Blocks should be 100mm thick, laid on the flat side.

A purpose made concrete pad could also be considered.

Buildings without a timber floor

Garages, workshops and stores, which do not have a timber floor, will be bolted down to a concrete base. These buildings will require a level concrete pad, which is 10mm less, in size, than the footprint of the building. In this way the shiplap cladding will pass down over the side of the base, while the sole plate (bottom rail) of the wall is bolted to the concrete. The pad should be at least 100mm deep and a damp proof membrane should be installed under the concrete.

The base must be at least 75mm above the surrounding ground to ensure that water is kept out and the timber remains dry. Any ramp for vehicles should be kept 40mm below the floor level of the base. This will allow the timber doors to pass down below the floor level by 20mm to keep out the rain. For open fronted cart houses and mechanical doors, please ask.

Do not overlook the need for both roof water and surface water drainage. The common solution for this is the provision of soak aways.

Always request a base plan before starting your own base.


A concrete pad and one course of engineering bricks are required. Please ask for a plan before you start.

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Bases for Timber Buildings

Timber floor base

Bases for Timber Buildings

Stepped base

Bases for Timber Buildings

Bricks on concrete base