Choosing the Right Length for Panel Boards

[JF.]

I'm going to buy panel boards for my construction project and I'm a bit curious about how to think when choosing the length of the boards.
The panel should be 22x120 and installed horizontally.
Spontaneously, I've thought about buying 4800mm long boards, then the jointed length will be 90cm and that should look pretty okay, right? Any inputs?

 

[sblixten]

If the entire length is 5700, I would have considered ordering that exact length.

 

[JF.]

If the entire length is 5700, I would have considered ordering exactly that length.

They don't have that length on the shelf at the lumberyard.

 

[Albans doktor]

Offset the joints to avoid a general joint; the result will be much nicer. So when you have nailed up your 90cm piece, you start with the offcut from the same board. Then the next joint will be at 180cm, and so on.

 

[nino]

Won't be too many that reach full length? Thinking about windows, etc.
Is the panel end-matched?
Mine was, I glued 10cm on each side of the joint and end-match, right or wrong I don't know 🙂

 

[MathiasS]

Shift the seams so you don't get a general seam; the result will be much nicer. So when you have nailed up your 90cm piece, start with the leftover from the same board. Then the next seam will be 180cm, and so on.

It is incredibly important to do it this way so that the seams spread over the entire surface. It gets even better if not all the boards are the same length from the start, so all symmetry in seaming disappears.....

 

[JF.]

Not many will be full length, right? Thinking about windows, etc.
Is the panel tongue and grooved?
Mine was, I glued 10cm on either side of the joint and the tongue and groove, right or wrong, I don't know 🙂

It's a storage, so there are only two windows, one on the gable and one on one long side. Unfortunately, they didn't have tongue and groove, I asked for it as there will be the least waste 🙂