"Phil L" wrote in message
. uk...
Suz wrote:
We want to specify heavier than normal joists in the extension. What
size should we ask for?

Suzanne

Which joists?
ceiling or floor?
what for?

The idea is to have real sturdy floor to minimise any bend and noise
transference. The longest one will be in the roofspace and as the kids will
be there I want to reduce the elephantitis noise from above.

I do know that insulation is needed too, but just want to use this
opportunity to make a really good addition to the house, not bare basics.