Hi,
I need to build a couple of stud walls that run parallel with the joists. The BCO has told me that I cannot build the wall on top of the floorboards and I must run new double joists. I understand that I can put noggings between the existing joists at either end of where the new stud wall will go and hang the doubled joists from wide joist hangers.
My questions are:
1. How do I fix the noggings to the existing joists. More hangers?
2. Do I need to bolt the double joists together? I have read 400mm centres for the length of the double joist
3. If i do need to bolt together, will M8 or M10 or M12 studs washers and nuts do?
4. The wall sole plate will sit on top of the double joist completely covering it. Where do the floorboards now fix to where they meet the double joist? Maybe another timber screwed either side of the double joist.
Please see indicative diagram attached.
Thanks for the help.
I need to build a couple of stud walls that run parallel with the joists. The BCO has told me that I cannot build the wall on top of the floorboards and I must run new double joists. I understand that I can put noggings between the existing joists at either end of where the new stud wall will go and hang the doubled joists from wide joist hangers.
My questions are:
1. How do I fix the noggings to the existing joists. More hangers?
2. Do I need to bolt the double joists together? I have read 400mm centres for the length of the double joist
3. If i do need to bolt together, will M8 or M10 or M12 studs washers and nuts do?
4. The wall sole plate will sit on top of the double joist completely covering it. Where do the floorboards now fix to where they meet the double joist? Maybe another timber screwed either side of the double joist.
Please see indicative diagram attached.
Thanks for the help.