I would like a simple Carport, preferably without covered walls, essentially just three sides with a shed roof to be covered with felt on wooden decking, but I don't know how to construct it so that it holds, and I can't find a company to contact and ask without it costing a fortune.
I have drawn how I envision the Carport to look; it should have "four bays" across a total width of 10 meters and be about 5 meters deep. You would drive in from the long side of it. The idea is to fit a trailer, two cars, and then some bikes and such. In the drawing, you can see it from the back; I plan to drive in on the higher side, with the two middle bays being wider to accommodate cars and the two outer ones being the place for the trailer and bikes on each side.
As I have drawn it, the idea is as above, but how do I know how thick the posts need to be? I would prefer to build it in pressure-treated timber so I don't have to paint it, but it may be that I need some laminated beams too to make it stable enough.
Possibly, in these dimensions, I might need walls to brace it, and that's completely okay, although I would prefer to manage without. I might just cover the sides in that case but not the back.
How do I proceed with what I need to request planning permission? I understand that I can't just submit this type of drawing and expect it to be approved. I spoke with XLBygg, but they seem to mainly assist with building plans for small houses and garages and not something "as simple as this."
But you have used the sizing tool on byggbeskrivningar.se? There you should be able to find out what dimensions you need for the lumber.
You will need to stabilize (brace) or at least clad parts of 3 of the walls.
Often, the municipality provides examples of how building permit documents should look, which can be downloaded from their website. It usually involves facade views and a site plan.
If you go down to cc600 on the roof beams, you can use construction timber (45x220 C24) instead of glulam, which is likely to be cheaper. However, lengths over 5.4 m are not available, so you would need to order finger-jointed ones (maybe you can reduce the roof overhang and manage with 5.4 m?). Slightly large deflection on these, but it might be acceptable.
The beams should suffice with 45x220 C24.
That leaves the pillars where the program suggests glulam 90x90, but I think you should be able to use 95x95 impregnated posts just as well, though I haven't calculated this.
But have you used the sizing tool on byggbeskrivningar.se? There you should be able to get the dimensions you need for the lumber?
You will need to stabilize (cross-brace) or clad at least parts of 3 of the walls.
Often the municipality has examples of what building permit documents should look like, which can be downloaded from their website. It usually involves elevation views and site plans.
Yes, I have used that tool, but then I don't quite understand what comes up as options in the second-to-last part, so I just took a guess on the first option available, now I switched to cc600 instead and I see that I get other choices. However, I still don't really understand how I should know how to substitute glue-laminated timber that is suggested with impregnated wood, unfortunately.
If you go down to cc600 on the roof beams, you can use construction timber (45x220 C24) instead of glulam, which is likely to be cheaper. However, there are no lengths over 5.4 m, so you would need to order finger-jointed (maybe you can reduce the roof overhang and manage with 5.4 m?). Slightly large deflection on these, but perhaps acceptable.
The support beams should suffice with 45x220 C24.
Then there are the posts where the program suggests glulam 90x90, but I think you should be able to use 95x95 impregnated posts just as well, although I haven’t calculated it.
I can absolutely consider reducing the size a bit in both directions as long as a normal car fits in length and such. My idea is the smallest possible construction but with the most possible potential, so to speak. I can certainly consider paying a little to get help with finding a suitable design, but I don't know who to ask.
One option for providing stability in the framework if you don't want to cover the walls is to place braces at a 45-degree angle between the posts and the beam. Are you planning to build with piers or cast a slab?
One option for stability in the frame if you don't want to clad the walls could be to install 45-degree braces between the posts and the beam. Are you going to build with plinths or pour a slab?
I have what I consider a good base of macadam and gravel that will serve as the bottom just as it is where I park now, so my idea is to build with plinths, thinking it's smartest to cast into pipes with mounts for the posts.