Summer house help

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Rossvelas

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Hi all.

Im planning on building a summer house at the bottom of the garden but it’s going to be quite large approx 7m wide x 5m deep.
An the wife has now decided that she wants a apex tiled roof on top.
I was just wondering would this be possible on a timber frame an if so what timber would be required for the base and the walls to support the weight off the roof frame and the tiles.

thanks in advance
 
I would suspect 4x2 for walls is plenty. as for the base it depends on the span the joists are running.
Just google floor joist span table and you’ll see it all.

I’ve just used 5x2 floor joist at 2.5 m span for a 5x4 building.
There’s a little flexi but nothing major.
Although I would use 6x2 if going again
 
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Cheers for the fast reply. So you reckon that a 4x2 wall would support the weight of the roof. Would I need a 4x2 every 500mm u think?
 
I’ve gone 400mm centres on everything

YouTube aliydymock or summat like that
He did a series on YouTube on building one but he was very thorough.
 
Have similar sized garage (but brick and block) used trussed roof and tiled , around £3k about 15 years ago so will be a little more these days .
 
Anorher thing I'd suggest is to build your walls in sections (to make them more handleable (if you ever try raising a 7 x 2 metre one piece wall frame off the ground on your own without any form of mechanical assistance, especially one that's built using wet treated timbers, you'll find out why!) Fix the frames together with full length binders top and bottom. The binders not only tie the frames together and help straighten the walls, they also strengthen the top of the frame, allowing it to carry a greater load (I.e a heavier roof). Remember that your roof needs to be strong enough to carry a load of snow and to be fixed down well enough to withstand storm winds. If using plywood to line the insides make your stud spacing 16 inches not 400mm (there is a difference) as plywood is sized in Imperial sizes
 
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First off, kudos for taking on such a cool project! Building a summer house sounds like the ultimate DIY adventure. As for your dilemma with the base, I reckon you might wanna check out some solid options over at www.scottsofthrapston.co.uk. They've got a decent selection that might just solve your base blues. Keep in mind, though, it's all about finding what works best for your space and budget. Happy building, mate!
 
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