UK Ply Question

[88h88]

I paid £45 a sheet (4x8) for my last lot, it was superb quality too, super straight and with only one little jigsaw piece shaped patch. I'd rather pay the extra than subject my sanity to using cheap shit again, that was a horrible time. Delivery is free on orders over £100 and it doesn't take too many sheets to hit that target!

[escapemcp]

with only one little jigsaw piece shaped patch

What is the process that creates these jigsaw shaped bits please? Is it done to cut out a knot (in that jigsaw shape) and then whack a 'good' jigsaw piece in there?

Thx

[88h88]

That's what I assume is going on! Otherwise someone is real bored at the plant that makes the ply and just cutting shapes into the odd sheet here and there.