nog wrote in message


When I was a lad, they made a great fuss in school, during breaks from
beating the **** out of us, about the difference between n-feet square and
n-square feet. Now, of course, the SI convention is n M^2, meaning n-square
feet (or is it t'other way around), so it's no longer so clear. :-(

It's 13ft x 13ft. Sorry they obviously didn't beat it into me hard
enough at school.

Being almost a perfect square, and with no trusses (those are the
diagonal uprights yes?), it makes a huge space. Back to the floor...
The two joists which span the party walls are approx 13 foot long. The
ceiling joists between them are probably 11 foot long.

Can anyone suggest costs for the design of a floor and do the BCO
charge a fee?