Not easy to get over but look at the wood in the bottom piece of an old (before 1940) window frame.... Clearly better than pressure-treated but normally pressure-treated is better against rot, however, lark is not that much worse if I haven't got it all wrong..
 
L
Is it not possible to impregnate the surfaces that are planed or sawed? It’s only two sides that will change. I would have sawed and planed pressure-treated.
 
How to impregnate by yourself?
 
I would never use treated wood there. If the wood is exposed (not clad), regular high-quality wood will last forever. It's more pleasant to work with, and there are no scrap pieces that need to be taken to a recycling center.
 
Impregnate myself is probably something I wouldn't attempt, it might be a bit tricky, oil maybe, but as previously mentioned, if you split it you lose the point of the impregnation...
 
OK, thanks for all the answers. I'll have to focus on gluing together two 28x95
 
Impregnate yourself? Get an autoclave (pressure tank with vacuum and heat) and a few hundred liters of liquid containing a range of heavy metals. Obtain permission to handle it. Get a plot where you never need to grow vegetables and where rainwater never reaches the groundwater. And then you can get started.
 
L
Click here to reply
Vi vill skicka notiser för ämnen du bevakar och händelser som berör dig.