Essentially, there are three basic points to consider when choosing a foundation for a storage building or shed. Building size and design, climate or region you live in, and the soil type.
Small structures such as garden sheds will require less ground preparation. Removing the sod and loose material then laying down concrete blocks or wood timbers are often sufficient for supporting a shed floor. Bigger structures such as a single car garage, 12x20 or larger storage building, may require a concrete or slab on grade foundation.
Concrete slab-on-grade floors are generally designed to have sufficient strength to support floor loads without reinforcing when poured on compacted soil. Using welded wire mesh with concrete and a low water/cement ratio can reduce shrinkage cracking, especially where expansive soils such as clay are present. This is an important point to remember if there is concern for appearance.
In areas of high seismic activity, special foundation construction techniques may be necessary. In these cases, consultation with local building officials and a structural engineer is recommended. On sites where the garage floor could be below the water table, a slab-on-grade foundation is recommended.
Whether you choose a wood timber base, concrete blocks, or a slab on grade foundation for your building project, these three methods will be the most cost effective and easiest to build.
The secret to project success is having step by step guides and detailed plans. This is closest thing to hiring a full time 24/7 carpenter working on your project, that you will ever find.
Anyone who is planning on building a garage or any type of storage building will want to be armed with the right information to make the right decisions. For more help and tips with planning the next building project, you may want check this out http://www.squidoo.com/garagrbuildingplans
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