Moderators: Random Orbital Bob, nev, CHJ, Noel, Charley

By J-G
colinc should probably be pushing Sketchup anyway.

I would always recommend SketchUp - though not later than 2014 for a truly 'Free' version.

It is much easier to master than any of the AutoCAD look-alikes for anyone who is less than familiar with 'technical drawing'. I'm a time-served Tool-maker having spent quite a time in the Drawing Office but even I find AutoCAD well less than intuitive!
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By stuartpaul
Downsizing means I'm about to loose my nice cosy, spacious double garage and move to a single one. I'm looking to build an 'annex' off the back of the garage that will become the hand-tool area (access by taking out existing garage window on back wall and forming opening). Initial drawing gives me a floor area of just over 14 sq metres. Roof height will also be below 2.5 m as I'm close to the boundary and don't want to have to go down the PP route if I don't have to.

Slightly confused over BR requirements. If over 15 sq metres and closer than 1 metre then the substantially non combustible clause applies. If under 15 sq metres and closer than 1 metre are there any issues to worry about? Searching the planning portal and other sites (as well as here) lead me to believe that I can timber clad and it's OK. I'm happy to use any of the cement boards if I have to.

I've attached initial design idea.
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By MikeG.
stuartpaul wrote:....... If under 15 sq metres and closer than 1 metre are there any issues to worry about?.......

No. Your electrics will need certifying, but that's it.
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By stuartpaul
Thanks Mike, appreciated.

Timber cladding on the back instead of cement board will save me a small fortune.

The build will follow your principles and I have several questions about detailing but I’ll start a separate thread when work commences.