we are going to lay a deck of about 6 square meters, so it's quite small. Still considering 34/145 so it holds up well for a long time. or is it foolish to pay double the price compared to, for example, 28/120? Tips appreciated
I always use 34x145 myself. It looks nicer and gives a more solid feel. I usually increase the c/c distance between the joists a bit, so you save some on the cost. The moment of inertia (resistance to deflection) for 34x145 is more than twice that of 28x120. However, it's important to look at the wood quality, otherwise, there can be a lot of waste. (This applies to all decking wood, actually) Do not use lower quality than G4-2.
The price doesn't increase that much, as 145 mm decking covers 20% more. The difference is only 5 SEK/m. You won't regret 34x145 Decking
Search on the forum for 34x145
Search on the forum for 34x145
Okay, that's true. Yes, it can never be too stable. Even if you're building something small. How do you usually lay the decking, with the frown face or smiley face up? I think frown face up so that there aren't pockets where water can collect. Then I'm considering hidden fastening camo. Pretty neat to avoid seeing the screw holes. Sure, the screws are expensive, but it won't be a high cost for a small project.
Have also been considering green decking or larch. I think green decking looks nicer over time with the silver hue. It's hard to choose.
I used 34X145 for my deck. Very satisfied. I found it easier to find good lumber that is 34x145. There doesn't seem to be much demand for that dimension in my hometown, so they are much drier than "regular" pressure-treated lumber. I've also noticed that the growth rings are much better in this dimension; the rings don't go horizontally but straight upwards most of the time. I imagine it warps less when the rings are oriented that way.
danielnorr, you can consider yourself lucky to live in Norrland in this regard. In southern Sweden, the lumber is consistently poor quality. The timber quality according to sorting rules unfortunately says nothing about its density.
Here is my deck.
See post #19
https://www.byggahus.se/forum/threads/dold-trallskruv-i-45-grader-erfarenheter.298124/page-2
It has hidden screws, screwed by hand at 45° but only in every other joist.
The pool in the background is 41° in the winter and 36° in the summer. We heat it with Fjärrvärme.
See post #19
https://www.byggahus.se/forum/threads/dold-trallskruv-i-45-grader-erfarenheter.298124/page-2
It has hidden screws, screwed by hand at 45° but only in every other joist.
The pool in the background is 41° in the winter and 36° in the summer. We heat it with Fjärrvärme.
L Leif i Skåne said:
Looks good. Ok, you can attach with hidden fasteners using regular screws without the tool. Do you just go by feel to get the 45 degrees, or do you mark everything in advance? Does it become stable?
No. Not ordinary screws. The screw is special, it has a small head just large enough for the bit to fit; what holds the board is a double thread with different pitches.Vulcan61 said:
At the bottom of the image, two screw holes are visible.
There are extended bits as the head disappears in 5-8mm and is almost not visible. It's the upper thread that holds the board, and it also has a larger pitch so the joint pulls together.
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XL-bygg secured approximately 1.50 kr/each
Okay, a little more expensive than camos then. 599 for 700 pieces at Xl bygg. They recently had a 20% discount, too bad I didn't think about it then.
Was it A4 acid-resistant?
It sounds like C4! That is, painted iron screw. It won't hold for decking, it will rust away after a few years.
It sounds like C4! That is, painted iron screw. It won't hold for decking, it will rust away after a few years.
Yes, it was C4. Then there's a2 and A4? So it's A4 that you should have even if you don't live on the west coast? Do you think they might rust through otherwise?L Leif i Skåne said: