My friend has just bought some new warehouse premises and he has asked me to help him build a new office area in one corner of the unit. The office walls are to be constructed made of 3" x 2" timber frame (2 walls) and the other 2 walls will be be the existing breeze block walls.
The problem I have is what timber to use for the ceiling joists....3"x 2" or
4"x 2" . And how to fix them to the breeze block wall. I dont know whether to use joist hangers or just fix a baton to the wall and screw the ceiling joists to the timber baton. All opinions gratefully received.