[unepipe]

I have a project where I need 3 wooden blocks, each perfect squares, to fit width wise in a 10” wide gap. I don’t want any space between these blocks sides of the gap they fit in. It’s an important project to me and I’m willing to pay a substantial sum of money.

But from what I am reading it sounds like you’re not able to do the job, the blocks need to be 3 1/3” wide each. It’s a no-go if I see someone try to cut them to 3 5/16”

What kind of system doesn’t let you cut such a fundamental length into thirds. Crazy.

[gnud]

I bet you that if I cut the blocks to 84.7 mm they would do just fine. If they don't, you take a file to one of them. And you have to do it like this with wood, anyway - because of imprecise saws, and moisture changes.

[unepipe]

Yeah my point was every measurement system has some value you can’t easily divide into thirds. How you measure depends on your tolerances. I have no qualms using either system, but metric is a much better system in my opinion.