I've had my floor boards up and noticed that the ends of 2 of the joists have started to rot and sag. There is a horizontal joist about 750mm from the wall that is currently supporting the lateral joists (if that makes sense?) so my question is, can I span this short gap with new joist and hang from the wall with joist hangers?
http://www.screwfix.com/prods/73487/Building/Builders-Metalwork/Joist-Hanger-50mm-x-175mm
Edit: it's an external cavity wall that i'll be fixing to
http://www.screwfix.com/prods/73487/Building/Builders-Metalwork/Joist-Hanger-50mm-x-175mm
Edit: it's an external cavity wall that i'll be fixing to