Thanks for getting back to me this is actually a college assignment that I've been stuck on for quite a while that i needed help on for designing the floor joists.
Could i have some help with the following:
Design, floor joists in a domestic building to span between walls 3.0m apart.
the construction of the floor is
18mm timber boards
joists
15mm overall plasterboard + skim coat
The joists are 50mm wide and at 450mm centres
The permissible...