The structure is necessary in order to keep the building from falling down. Structural
elements consist of walls, floors, roofs, beams and columns. When we think of structure
we normally think of steelwork, however it can be specially conditioned timber and
other materials. The structure is designed by an engineer who will take into account
the ground conditions, existing structural elements and proposed structural elements
(including walls, floor and ceilings). Steelwork and lintels are required to allow
for large openings between rooms, extensions and the outside.