how should I do really

[Avbytaren]

Here’s how it is: I will install 6 windows with dimensions 10x21 and also a double door with dimensions 15x21 and a single fully glazed door 10x21 on a wall that measures 9.2 meters. How should I do it to ensure everything is stable with glulam beams, etc.? Can someone help me? I am attaching a floor plan so you better understand what I mean.

 

[pbengtsson]

Assuming it is an existing wall.
First, you should brace it so that you can make space for your windows, etc., but essentially it becomes a temporary stud wall 10-20cm into the room. It's important to secure it laterally so it doesn't buckle.

Then you have two options (since there are no studs between windows)
1) a glulam beam above each section with glulam posts down to the sill or whatever is underneath. You can check Moelven's site for dimension calculation, but maximum 30cm in height if you need to fit it under the rafter.
2) build up the space as usual above the windows, glue plywood on both sides, and use the frames as "studs" by shimming in between so that the framework rests where the windows meet (not over the glass part).

In any case, I would probably make sure to get a craftsman out. They can fix this pretty quickly, and they can better see on site which solution works, or a combination of both.

 

[Avbytaren]

Assume it's an existing wall.
First, you need to brace it up so that you can make space for your windows, etc., but essentially it will be a temporary rule wall 10-20cm into the room. It's important to secure it sideways so that it doesn't buckle.

Then you have two options (as there are no studs between windows)
1) a glulam beam above each section with glulam posts down to the sill or whatever is underneath. You can check Moelven's website for dimension calculation, but maximum 30cm in height if you are to get it under the rafter.
2) frame up the space as usual above the windows, glue plywood on both sides, and use the frames as "studs" by propping them up in between so that the framework rests where the windows join (not over the glass part).

Regardless, I would still make sure to get a craftsman out. They can fix this fairly quickly and can better see on-site which solution works, or a combination of both.

Do you mean that the glulam beam should be 30 cm high? Should I take a post on the outside of each window section and then another on each side of the double door and then let the glulam beam rest on these posts?

 

[pbengtsson]

A beam over the 4m section, one over the 3.2m section (glulam beams are available up to 12m, so a single one over the whole span can work, but you'll need it delivered). A 90x90 post at each end and one or two 90x90 in the middle depending on the load requirements and the number of beams.
There are examples like 90x270/315 beams, but to know if they suffice, you should check with Moelven's calculation program or Träguiden, which also calculate post dimensions.

But without calculating, it should land on these dimensions.

Make sure that there is something underneath that absorbs the force from the posts.

 

[Avbytaren]

A beam over the 4m section, one over the 3.2m section (glulam beams are available up to 12m, so a single beam over the whole span could work, but then you'll have to have it delivered). A 90x90 post at each end and one or two 90x90 in the middle depending on support requirements and one or two beams.
There are, for example, 90x270/315 beams, but if they are sufficient you should check with Moelven's calculation program or Träguiden, these also calculate the dimensions of the posts.

But without having calculated, it should land on these dimensions.

But be sure there's something underneath to absorb the force from the posts.

Can't I use a long glulam beam over the whole span with a post at each end and then on each side of the double doors? Can I place the window frames against each other?

 

[daugaard]

I would have done the following:
If you can fit a standing 45 X 95 between each window (i.e., a 45mm gap between the windows), then you can skip the glulam beams! Instead, insert a bearer of 45 x 170 (depending on the ceiling height) under the wall plate.
and preferably double 45 x 95 on the sides of the door.

 

[pbengtsson]

With one, it should be enough with a post in the middle. If you put the windows together, they should also be screwed upwards and some invisibly downwards (think of a frame as a vertical stud for the other window), and keep in mind that the frames are not 100cm wide but rather 98cm, so the opening is not made, for example, 4m, resulting in too much gap at the ends.

Is it due to lack of space or aesthetic reasons that you want the frames together? Otherwise, it's easier with a standing stud between each window.

 

[Avbytaren]

it's probably mostly for aesthetic reasons. But if I would put a beam between each window, do you think a 45x95 would be enough? I would probably choose 45x170 or 45x220 myself.

 

[daugaard]

If you do some calculations you'll see. A built-in 2.4m high 45 x 95 regel c24 quality can handle over 2 tons.
If you then go up to 45 x 120, it can handle 3.9 tons.
And you know how many reglar fit in.

Then you only need the weight of the roof.

 

[Avbytaren]

If you do a bit of calculations, you'll see. A built-in 2.4m high 45 x 95 rule C24 quality can handle just over 2 tons.
Then if you go up to 45 x 120, it can handle 3.9 tons.
And you know how many rules go in.

Then only the weight of the roof is needed.

But how do you calculate if you would have glulam posts on each side of all the windows and then another one on each side of the double doors and a glulam beam lying above it all?