Oz07

When the chippy has thrown the stud up on a first fix and the wall is 4 mm out of plumb, you'll be loving that extra width tolerance the linings have. Besides it's the decorator who has to caulk it not the guy who fits the lining! I usually plane a bit off mine to be fair, but I dare say the manufacturers know this but would rather make one product which fits all, rather than 2 separate products. After all 3 cuts with a plane and you're done

To clarify you usually allow max 6mm to achieve par or pse. They both mean the same thing. Can be difficult getting a pair of stiles to plane up for a door and sometimes you need to oversize your timber to compensate 1"- 19mm 2"- 44mM 3" 69mm Etc etc

Makes me wonder why big boys haven't caught on to this. Traditional foundation systems, no delays or price gouging fr brick shortages, Aircrete block shortages (the latest scam) and completely eliminating the need for the trade which is in shortest supply at the moment!

Just put a roof on with some Simpson hangers and didn't like them at all. Very baggy fit which I'm sure will be bad when plaster boarding. Whatever make Donaldson timber supply seem a better fit.