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I have a friend who is helping us with a frame and he has somehow missed that we need to have three studs as a jamb for a window spanning 3200mm. Is it permissible to cut timber to size to sit in between the noggins, rather than pulling out the work he has done, or is there some rule that studs must be in one length? Also, he seems to think that the lintel extends a fair way past the length of the window. I believe that it is just the width of the stud that it sits on. Hope someone can help.
How many studs are supposed to be under the lintel?
This is called bearing
1 stud would be 35mm bearing each end (if you are using 35mmm studs)
The specifications state that for the opening of 3200 three 90x35 jamb studs are required for a lintel measuring 200 x 75. A book by Allan Staines (how to be successful Owner, builder renovator) shows the Lintels as sitting on one reveal stud with two other full length studs next to it lon both sides.
Thats is probably correct as long as there is no roof load on the lintel.
Is that window in a load bearing wall?
If so you must include the properties for a roof load width, wind speed and roofing material.
Why not just knock the last nog out and fit two more studs then replace the nog (only shorter). Cutting bits and pieces is always a hassle and if they don't fit right there is a problem. Also the studs may be required for lateral wind loading. It is not that hard to knock a nog out each side and cut 4 lengths of stud then cut the nogs to fit back in.Quote:
Originally Posted by Lee Lee
We have done exactly that, cut down noggins and put an extra two studs beside the supporting one. Also on the outside of the three studs is a cyclone rod on both sides of window. I am considering adding an extra stud on the outside of this one also. Oh, and yes it is a load bearing wall.
I can't think of many situations were the windows would not be in a load bearing wall.
Walls under gables ends.