House Build Flooring

Self leveling screed
Block & Beam floors 1
Block & beam prices
Flooring protection
22mm chipboard flooring with rip off none slip surface.
Celotex insulation info pdf

House Flooring Finishes
Ground floor, will be Block & beam with a perimeter & supporting walls of flat laid concrete blocks to a height of 200mm  with blinding layer of soft sand to around 25mm with damp proof membrane. Then 80-100mm insulation by kingspan or celotex with a 90mm level screed to top of 2 corse's 
Not sure on floor finishes, but will be looking at wood, tile, & epoxy resin.
1st Floor, will be 18 or 25mm glued interlocking plywood board that is water resistant  & laid on a bead of silicone on all joists. This floor is to be laid before the construction of any of the 1st floor exterior or internal walls. On reading up on using chipboard, it seems many have had problems with it over the years.