Structural wooden flooring

[luckyglen]

Hi,

I'm just about to put underfloor heating (warm water) in between the joists (400mm centres) in my dining room

I want a wooden floor on top. I'm limited in putting too thick a subfloor in as it will insulate heat.

Ideally I want to lay a wooden floor straight on top of the joists. Now I assuming that the bit in between the joists where the heating pipe will not take any weight, so my questions is....

How do I lay the floor so that it can be weight bearing without a subfloor?

Thanks in advance

 

[luckyglen]

Also can anyone tell me if they've got any experience with wood veneer floor. I'm concerned that they might scratch and mark easily as the veneer is less than 1mm.