Well, I’ve been a little bit inactive due to travelling and the snow and the cold but as I couldn’t get on with the side door, ( the snow was half way up it!) and it’s insulation and also being inspired by Rogers stud wall I have started on the front wall of the workshop, it’s gone remarkably quickly. I was able to get four hours on it today and the weather was a few degrees above freezing which helped.
It’s a fairly normal 2 x 4 Stud construction it will be lined on the outside with a decorative half inch plywood, lots of insulation and a total thickness of six and three-quarter inches. The insulation was planned to go between the studs as normal and then a continuous layer on top of that then furring strips and finally plasterboard.
It was then I had a little bit of inspiration, as it’s a non-loadbearing wall, why do the central uprights have to be positioned the way they are? So I did a bit of research and whilst this isn’t an original idea, it’s not that common, I have turned the 2x4’s in the middle of the wall flat ways on, this will save me a lot of time Cutting the Kingspan type insulation into strips and then sealing it on all four edges with expanding foam, also it will save the cold or heat bridging through the studs. Perhaps
@Mike G could tell us if it’s allowed in the uk please?

The door is an old one which we don’t need from inside the house, it’s a well built six panel door, new hinges and a decent UK five lever mortice lock plus jam bolts for security will be added. Yes the equipment will go through!
The door casing which is the full depth of the wall ( 6 3/4” ) is made from 3/4” ply and suitably strengthened, the bit that really matters is up against the studs and the hinge screws will go through it into the studs.
Not being a Joiner, it’s been a long time since I did this sort of work and I don’t possess a compressor or nail gun so this was all put together with big old-fashioned 3 1/2 inch nails, 16 D nails to be precise, named after old English 16 pennies per pound? of nails. I originally was going to screw the whole thing together but again after a bit of research I realised that nails are used as they are more resilient to being snapped in sheer under stress.
Ian