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Recommendations for learning material about box dormer design


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As you can see in my other posts, I have a back to brick property (my home) that I'm renovating and remodelling. I have lots of time but not much money and so I'm trying to self-build as much as I can within the regulations. One place where I'm struggling to find detailed information is box dormer construction. 

 

I'm at the stage where I have a way forward for the floor and the main load bearings (ridge steel and another under the dormer face set back from the eaves), with an SE ready to do the calcs, and I'm looking to design the timber structure. 

 

Does anyone have any advice on where to learn about this part of the construction? Timber thickness, spacings, where to double up, techniques for tying in the front roof plane etc. Any good books/websites/videos?

Edited by timber
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  • 1 month later...

My SE detailed how he wanted it built. 3 175x50 C24 bolted together and structural screwed into the joists, this was the sole plate and runs the full 10m length of the bungalow.

Then window construction with studs in-between, and finally a binder top plate, all in 150x50mm C24.

 

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