Available in different sizes:
30910-1'' x 10'' O/A x 8'' C/C X 1-3/8" projection with plain rings
30912-1'' x 12'' O/A x 10'' C/C x 1-3/8" projection with plain rings
30918-1'' x 18'' O/A x 16'' C/C x 1-3/8" projection with plain rings
Same sizes as above with 1'' center or end brackets
Available in custom sizes