Info

[maestro121]

I need some information about ground supported concrete slabs, timber joists and cavity walls

[alvin100]

Thats a very vague question, what do you need or want to know exactly?

[Toureman]

It's not exactly science, try posting in DIY section.

[buildersmate]

Its still a woolly question whichever section it is put in.
Ground supported concrete slabs - the method commonly used to provide floors in modern dwellings - a lump of concrete sat on the ground, flat so your carpet looks nice on it.
Timber joists - the structural rectangular wooden pieces spaced at regular intervals across a span to support a floor. Often used on the first floor of a dwelling.
Cavity walls - the normal method of domestic construction using two layers of brick or block separated by about 50mm of air gap, and held togther by metal brick ties at regular intervals.