Hi, building my kitchen extension i've realized i need more light. i will be building a wall 1130mm wide, one side will tie in with existing wall, at the other side is a door. i have a window 675mm wide which will leave 220 either side i.e. one brick, will this be enough? there will be a catnik on top, two courses and then wall plate for small lean-to pitched roof............
window in extension
- Thread starter jonCar
- Start date
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There is a minimum return/pier size of approx. 670mm, so you'd have to fit a smaller window.
ok, thanks. what would be the max width i could fit then? also should the cavities be closed at eaves?
If you span a single lintel across both openings, then you wont have to worry about slender pier ratios.
The minimum return on a corner is 675mm without calculations. there is nothing stopping you having the door or window right on a corner, but the BCO may want a structural calculation.
There is no need for a smaller window.
The minimum return on a corner is 675mm without calculations. there is nothing stopping you having the door or window right on a corner, but the BCO may want a structural calculation.
There is no need for a smaller window.
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great, so i'll put the window and door together in the middle of the wall spanned by a single lintel and i have plenty of return on either side. thanks for advice
Woody is this calculation for the inner leaf or the outer leaf or both ???
as i am fitting external french doors to my small extension and have a corner return of 550mm.
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