16 gauge mild steel. Powder coated for indoor or outdoor use.
DON'T FORGET TO ADD YOUR MAGNET HARDWARE- ADD 2 SETS FOR 24" AND UP
Item does not come with mounting hardware.
****MAKE SURE TO ADD YOUR MAGNET HARDWARE FOR THE CLEANEST MOUNT!
***ADD 2 SETS OF HARDWARE FOR SIZES 24" AND LARGER
Product Dimensions (inch):
- 12 - 11.5" x 11.5"
- 15 - 14.5" x 14.5"
- 18 - 17.5" x 17.5"
- 24 - 23.5" x 23.5"
- 30 - 29.5" x 28.75"