Not one wall is square to another !

Hi, We are laying new t&g pine floorboards in our living room over the existing floorboards. (we have left the new ones in the room for a couple of months to dry / season) . Not one wall is square to another - or straight! so my husband is considering laying the new floor diagonally in the room. We think that this will not only look original but also get round the problem of the room not being square. As he will be secret nailing it to the existing floor, he doesn't have to follow the joists. Do you know of any reason why this shouldn't be done?? We can't see this in any design etc books that we have looked up. Thank you so much for any help you can give, and for such an informative site.

You have found a perfect solution for this problem!
The only things you and your husband must be aware of are:

• any 'hidden' pipes, cables underneath the existing floor
  
• to use proper nails. If you would hire a Portanailer the hire-people will know what kind of nails he should use.
• Installing diagonal will cause extra saw-waste.
  

Good luck with the job