Sign brackets

[bosdub]

I'm hoping someone can steer me to these "U" channel sign brackets. Looks like either powder coated or painted aluminum but I can't find any extrusions out there, just small brackets. These will need to hold a 3/4" thick board.

Thanks!

 

[J Hill Designs]

Any metal supply shop should be able to get U-channel with a 3/4 ID

 

[MikePro]

you can also make your own U-channel with 2 regular 90 degree angles.