corner

hi guys I've started tiling my media wall with stone cladding and hit a brick wall. I need to tile the corners and since the cladding I've bought doesn't offer corner tiles I will need to cut it myself. Normal 45 deg cut won't work as the cladding I have varies in thickness (stone-like effect)...

What's the best way to fit channel drain around corners? I don't know if the corner boxes need to line up with specific parts of the channel drain or whether any cut will fit into the box. My lengths will almost certainly be random and there is a few corners to work out

Help would be appreciated - what do I need to do here?

I blocked up the old car port to convert it domestic use. It has a membrane under the conc slab but building control say I also need a dpm over the slab and slightly up each wall: makes sense I suppose, it'll have a plywood floor + engineered wood, on battens. What type of membrane do I need...

I have a 1st floor block wall with doorway to build and was wondering if I should mesh the door corners. Low ceilings provide only 9.5" above the door frame. The wall isn't loadbearing and is perp to an exterior wall that has no cavity in it's lower half. Does it make any difference to increase...