Using 95x45 lumber even though I'm going for 70x45 walls?

[JockeEriksson]

Strange question perhaps, but I have about 50 meters of 95x45 left over and about 20 meters of 125x45 left over. I am furnishing the attic and will build four rooms with 70x45 studs. Maybe 25m of interior walls. I plan to have OSB and single drywall on the interior walls with insulation inside. To soundproof extra, I might put double drywall against some room.

I could build one or two walls with the 95-timber to use it instead of having to buy new 70mm-timber, but I prefer not to lose 2.5cm unnecessarily since the attic is quite small (60sqm).

Therefore, I'm wondering if anyone has suggestions on how I can use the 95 or 125 studs in some way while building 70-walls?

I can't return the timber and I guess it's hard to sell on something like Blocket. The alternative, of course, is to put it in the fireplace

 

[Dan_Johansson]

If location is important, you can position them "the other way" and use them as 45-reglar?

 

[JockeEriksson]

If space is important, you could position them "the other way" and use them as 45-studs?

Yes, but I need OSB on both sides, so if I lay a 70mm along the floor and then a standing 95-stud the other way, I have to position it on one side or the other. You can't have two across since 45+45 is 90 in width, and the floor stud is only 70mm wide. It could work to overlap them slightly, deviating from CC600 a bit if that makes sense. But it feels unnecessarily complicated to save maybe 1000 kr on new 70-studs.

 

[Dan_Johansson]

You can buy 45x45 and lay it on the floor? It won't be that many kronor?

Edit: or you can buy a table saw and cut off 20mm in length.. Those are the options available?

 

[Nyfniken]

That's how you have to do it. But it gets tricky with the insulation...

Another confusing option is to angle them, but then you have to write the board on the "ridge".

Can't you split them?

 

[JockeEriksson]

That's what you'll have to do. But it gets tricky with the insulation...

Another quirky option is to angle them, but then you have to fasten the board to the "ridge."

Can't you split them?

I'll probably skip the quirky option Splitting them to 70 in width isn't a bad idea. I have a table saw and the lumber is never perfectly straight, so it might turn out okay.

I was thinking if I could lay them as the upper plank along the ceiling, then cut the OSB boards a bit shorter so that at the top it's drywall + stud + drywall and further down it's drywall + OSB + stud + OSB + drywall. However, OSB + OSB is only 22mm, and thus the stud is 3mm wider than the part of the wall that has OSB, so the drywall might bulge out a bit. But I suppose I still have to install furring in the ceiling (28mm high) so then it's just 45-28mm = 17mm where the drywall goes directly against the stud and thus bulges out a bit. Maybe it's okay? But it's a bit tricky as well. Splitting the studs might be simpler.

 

[JockeEriksson]

You could buy 45x45 and lay them on the floor? It won't cost too much?

Edit: or you could buy a table saw and cut off 20mm in length.. Those are the options available, right?

Oh, you mean like that. Build 45mm walls? In a sense, maybe 45mm walls are enough and then I can add double gypsum besides OSB if I want better sound insulation. That is also an option, of course.

 

[ronolo]

You shall not have elskåp, säker-vattenskåp or golvvärmeskåp in any of the walls? there a 95-rule is appropriate.

 

[JockeEriksson]

You shouldn't have electrical cabinets, safety water cabinets, or underfloor heating cabinets in any of the walls? the 95-rule is appropriate there.

Ah, not sure about this. Maybe underfloor heating. I'll think about it! Thanks for the tip.

 

[kulle]

Boring answer perhaps, but
Save your 95 reglar for something else, and buy 70 reglar for your current project.

 

[Rickard.]

As Kör first suggested, buy 45x45 (or split a regel, the height of these spelsr matters less) for the foundation and top plate and build a narrower wall. 45s studs, OSB and gypsum will make a stable wall. Sure, you might lose a bit in sound insulation but hardly noticeably.

 

[Mikael_L]

I probably agree, I'm also boring.

The old studs you have, are they still straight and nice? My experience is that much of what you had lying around for a while has twisted into unusability, except as fuel for the stove.

Placing the studs crosswise and getting 45mm is a possibility, but a bit disappointing if it's supposed to be an insulated wall, as there's more area with the stud and less with insulation. But of course, it depends on how important insulation is there; some heat leakage might be completely OK:

If your 120-studs are nice and straight, maybe it could be an idea to split them exactly in half and get a bunch of 59x45 studs to build with. But will the material be enough then? That's about 40 running meters.

 

[ItWasntMe]

Split them into 70mm. That's what we do at work when you want to make use of leftovers. It doesn't take much time, easy to execute. So split, and then use the scraps for trellises or other delicate projects.