Even with perfect measurements it’s impossible to get to that line straight unless the frame is perfectly square. This not only completely solves that issue but also saves a ton of time not having to measure and cut them one by one.
Also the lumber I picked turned out to be 10 cm longer than the deck and I even picked the exact right amount. By the time I was done I only had a basket of <10 cm off-cuts.
Do you not need to treat the exposed ends several times then though? I gave up on a project like this because it just felt like it would rot again quickly.
Treated wood should be treated through and so no need to treat the ends
I am also curious about this, it looks like a place where water will collect in between. At least where I live, maybe this person lives in a dryer climate?
I can’t say for sure from pictures but my guess is everything is safe for in water use and so no worry. It doesn’t take much to drain the water out