DIY Crab Gauges

I make my own crab gauges.  They're easier to use, they float, and are heck of a lot cheaper than store bought gauges.  I bought a small sheet of plastic for less than a dollar at Tap Plastics which is enough to make half-a-dozen gauges to use at spares or share with your buddies.  Be sure to check and double check measurements with a good ruler or caliper.  A sharp utility knife, straight edge, and cutting board are the only tools I used.

I made two different styles.  The gauge in the middle is probably easier for rookies to use.  You simply flip it over to the type of crab you're measuring.

If you go this route, make sure you buy HDPE. HDPE floats (barely), acrylic, ABS, PVC all sink. 

If you go this route, make sure you buy HDPE. HDPE floats (barely), acrylic, ABS, PVC all sink. 

True.... and easy enough to test out in your kitchen sink.

Those look great. Nice job!

Good idea, I am less than enthusiastic about shelling out three or four bucks per for store bought gauges. Besides everything is more satisfying when you make it yourself.

Nice!

Might need to cut a curve ("deepen" them) to account for the curvature of the crab's carapace?