Hello everyone! I want to install an 8x21 door as shown in the picture. I discovered when I removed the plasterboard that there are 3 studs that I understand are supporting the beam, which in turn supports the garage roof. The next pillar is about 3 m away, the wall is 95 mm, and there is a water pipe that is in the way, so I need to place the door as close as possible to the left. How do I replace the standing studs? I'm thinking of two 90*90 glued laminated beams on the sides of the door frame and one approximately 90*200 on the edge for the cut-off studs/beam to rest on, and I need to cut around the beam where there is space for 145 mm. Is this overkill or too little? Does anyone have some knowledge to share?
Best answer
How large is the roof area supported by the beam?
What type of roof does the garage have?
Where in the room is the beam placed and what do the rafters look like that are placed on it?
How is the floor dimensioned around these standing studs, can you see any elevation or other indication that the floor is reinforced there?
Spontaneously, it sounds undersized to replace the standing studs with a horizontal beam of 1000*9+*200. Especially with a notch in it.
What type of roof does the garage have?
Where in the room is the beam placed and what do the rafters look like that are placed on it?
How is the floor dimensioned around these standing studs, can you see any elevation or other indication that the floor is reinforced there?
Spontaneously, it sounds undersized to replace the standing studs with a horizontal beam of 1000*9+*200. Especially with a notch in it.
For that, you need to bring in a designer to do some calculations. It's partly about the glulam beam (maybe better with a steel beam). Partly whether there is support in the floor for the columns you have in mind. The columns should also be dimensioned, although that's probably the least critical point.
Thank you for your responses!C corre said:
Roof area: It's on the lower half (in image 1) so it only supports part of the roof. The lower half is about 7.6*8.6 m.
Roof type: Flat roof with roofing felt.
Other questions: I haven't really considered the floor, but I believe they stand on a sole plate and then a concrete slab. Hopefully, the attached images can clarify that part. Yellow is where I want to open, and red is the beam with a pillar.
I wanted to keep it simple, but maybe it’s not possible.
To calculate this, more information is needed. Ideally, a section through the garage so that the entire construction is evident. The drawings must be dimensioned regarding the main measurements and the positions of beams and columns. Additionally, information about the location is necessary (to assess the snow zone).
Thank you for both of your responses! The steel beam was 5-6 cm wide (clad in wood and plaster in the picture which made it look bulkier) and leaned against a 45 mm thick stud, so I will saw off these and replace them with two 170*45 mm on edge above the new door. I don't know if it's entirely correct, but it should at least be much more stable than before and it worked. I live down south and we usually don't have any amounts of snow.