What is square for SO3

12" max width with your reference…
16" width in smooth select…
That’s almost the footprint of a standard S3 (16")?

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Almost–16" nominal, 15-1/2" actual for the miratec.

yeah, if only home depot had the smooth select, they probably could order it in on line, I’ll try to find out and if so I’ll get a pc for the top layer. I want to plane it down, one so it is as flat as possible but also I want to align the top surface with the top of the front and back support angle iron rails. Than a spoil board 1/8" hard board will run over the rail and out the front if needed.


kind of like this.
Actually the 5 1/2" boards work better for me because I want t track between the boards and a 16" wide board is too wide for my planer, but maybe there is different sizes for the smooth select.

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