I will replace the lower board on a quay/bridge facing that, depending on the water level, ends up just above, in, or below the water surface. To ensure the board lasts, it should be pressure-treated class NTR A. However, it's difficult to find exactly 45x95 in NTR A around Gothenburg - NTR A seems to only be available in wider dimensions... Does anyone know where it can be purchased in the local area?
Could it work to buy a wider dimension and then split it to the smaller one needed?
Unfortunately not a good solution as it "opens up" the timber - wood treatment rarely reaches all the way into the core of the timber, so end grain/sawn surfaces are not as well protected.
Ntr M seems, by the way, to be suitable for constant contact with the west coast water.
[link]
Regardless of the quality, any major building supplier other than Byggmax/Bauhaus should be able to order any desired dimension.
Yes, but since it's about quite small volumes, about 10 studs, the building suppliers are not interested in ordering in such small quantities. NTR M is out of the question when it comes to freshwater, especially very close to the municipality's drinking water intake...
Unfortunately not a good solution as it "opens up" the rule - wood impregnation rarely reaches all the way into the core of the rule, so end grain/sawn surfaces are not as well protected.
If the core of the rule is heartwood, it makes less of a difference; the impregnation liquid doesn't penetrate for the same reason water doesn't. But the reasonable thing is to buy 47x200 NTRA and split.
Unfortunately, not a good solution as it "opens up" the rule - wood treatment rarely reaches all the way into the core of the rule, so end grain/sawn surfaces are not as well protected.
You can treat the wood to get better protection, and then any potential limited impregnation in some part matters less. A couple of coats with wood tar and linseed oil is common for docks. Start generously with more linseed oil in the mix and then thin layers with more tar. Allow the linseed oil to oxidize/cure between applications.
Then there's a difference between heartwood and the core of a rule. Heartwood absorbs impregnation less effectively, but it does so regardless of where in a rule it is, while the core of a rule can soak it up like a sponge if it's sapwood.
But what is the definition of "should last"? What was used in the past? How long did it last? Was pressure-treated wood used before? As far as I remember, regular wood of fine quality tends to last a very long time. I almost have a feeling that today's pressure-treated crappy wood lasts worse than untreated wood of good and dense quality.
But what is the definition of "should hold"? What did they use in the past? How long did it last? Did they use treated timber before? As far as I remember, ordinary timber of fine quality used to last a very long time. I almost have a feeling that today's treated crappy timber holds up worse than untreated timber of good and dense quality.
Since it is very difficult to find timber of fine quality (that has grown slowly), unfortunately, pressure-treated is necessary so that it doesn't rot away after just a few years...
Since it is very difficult to find high-quality wood (that has grown slowly), unfortunately, pressure-treated wood is the best option so it doesn't rot away after just a few years...
Have you tried googling sawmills near you?
Look around for "bondsåg" or amateur sawyers, there are some who have a type of solosåg, logosol privately.
I buy logs from a couple of forest owners and get them sawn privately with a logosol for a fee.
If I only need a few planks, I take my own chainsaw with a jig and saw them myself.
But then you really have to enjoy tinkering and fiddling around yourself though😀.
Have you tried googling for sawmills near you?
Look around for "bondsåg" or home sawyers; there are some who have something like solosåg, logosol privately.
I buy logs from a couple of forest owners and get them sawn privately with a logosol for a fee.
If I only need a few planks, I take my own chainsaw with a jig and cut them myself.
But then you have to think it’s fun to tinker and fiddle yourself, though 😀.
I assume you missed that it is pressure-treated wood being requested...?
Assuming you missed that it is pressure-treated that is requested...?
I have noted that you are seeking pressure-treated, but I still suggest you reconsider your choice, as buying kärnfura, oak, or larch will likely provide a better lifespan for the dock.
Why 45x95 mm? It is usually planed, and you probably shouldn't need that with such a placement near the water surface. I suggest you opt for sawn two-by-four, i.e. 50x100mm.
Pjosk75 said:
