4 ft purlin spacer guides

[Frank S]

Not the same weight category but we used to use spacers on roof trusses inbetween. And spacers on the strapping of the roof if we were installing a sheetmetal roof.

Best measuring is no measuring.

Absolutely back when we did a lot of production drilling I took the time to make drill fixtures with hardened drill bushings could stack multiples of parts in the fixture against the stops every hole in every part would be identical way faster that even trying to stack and clamp down multiple parts and use the NC commands on my Cleerman