The Chickens! How to Guide (vol.4): Making an Excavation Screen

I drew up some plans for some large excavation screens I made. I went uber-low tech and drew them in Paint too (it's easier than you'd think once you figure out your scale lines). The plans are also in the latest issue of the SAS Newsletter so they're even published (kind of). The reason I put these up here is because my first instinct when I was going to build new screens was to look for wood working plans on the interwebs. But to no avail because the best I could do was a plan for a tank-like shaker screen (but I wanted ones to be hung from from a tripod, hammock style from two trees, or what have you). So I thought I would do my social duty and post my plans here for other archaeology types to try (click to embiggen). They also work for geology soil sifters or compost sifters. Hey and if anyone out there downloads/uses the plans please leave a comment, I'd be interested to know if my social work was useful.

p.s. I put metric measurements because I don't care what the lumber industry says dang it (What are we? In the time of Charlemagne!?). But, since board types are named for their imperial height and width measurements (and S4S boards are subsequently finished to slightly less than that), you can check the "Did You Know?" box for S4S board dimension conversions.