Crooked terrace wooden planks - usable?

Would you do that or is that standard?

Somewhere in the delivery conditions or something there should also be something about warped planks. That is not always a reason for complaint, but must be accepted to a certain extent because wood is a natural product after all. Depending on the classification and dealer, it is different. They can be processed, but as described, it also takes a bit longer. And with 2 out of 29, that is still very manageable.

has already described very well how to handle it properly. The spacers make things easier and more durable. This is how our planks looked: With the mentioned tools, they could be controlled well. In the end, it still resulted in a terrace that you are happy to see every time.

Since I just went through this with quite a few terrace boards:

Which boards have you laid now? Thermo, larch,..? Satisfied with the decision?

Which boards have you installed now? Thermo, larch,..? Are you satisfied with your decision?

I initially leaned towards thermo-pine or thermo-ash, but for several reasons I decided on classic larch.

The terrace is about 34 m² in size. Price for the wood also plays a role, and all alternatives would have been at least twice as expensive. I installed 28/120 mm boards without profile, so smooth. At the moment I am very satisfied. How long that will last remains to be seen. I have followed the most important guidelines for constructive wood protection, so I am not too worried about general long-term stability. As for splitting/checking, we will see. Working with larch is of course also easier than with hardwoods, and since this is my first own terrace, I didn’t want to make it unnecessarily difficult and then struggle with especially expensive wood.

Here is the terrace. Picture from February, it was not finished then. On the right you can see the stack of wood. It was extended to the right with 2 m board lengths instead of 4 m as here, for about 6.5 m further. (The pergola was built by the previous owner).

what kind of wood do you actually have?

I initially leaned towards thermo-pine or thermo-ash, but then decided on classic larch for several reasons.

Thanks for the feedback and the information! The screwing from above doesn’t stand out at all with the grain. I had planned it to be invisible, but I’m not sure anymore if it’s worth the effort.

We are also leaning strongly towards larch or Douglas fir. Unfortunately, the thermo-pine samples and wood/plastic material samples I had were not convincing.

We also have Siberian larch, length 6+5m = 11m. Some were also "warped". There are helpful tools, e.g. from the manufacturer Wolfcraft ... pliers and spacers. It worked smoothly for us.