1) Bases 2) Beds 3) Substrata 1) Lowest parts of structures 
Organizations established by endowments with provision for future maintenance. ... (12 Dec 1998) ... 
Lower parts of walls on which the structure is built. Foundation walls of masonry or concrete are mainly below ground level
Foundations are the lowest load-bearing part of a building, usually below ground level, through which the loads of a structure are distributed on to the ground. The quality of the ground and the kind of structure determine the type of foundation used. Spread foundations are broad and shallow and, where firm ground exists near the surface, are the s...
Normally concrete, cast into the sub-soil as the structural base for a wall or building
The umbrella body for home improvement agencies.