LEGO Self bracket

Use 3/16" plate for shelf bracket.

Use a 5/8" thick shelf for proper fitment.

Use 3/16" x 1 1/2" flat bar for the wall mounting bracket.

Countersink 2 holes for a #8 screw in the flat bar.

Square up flat bar to the bracket and weld 1" sections on the inner corners and middle.

Enjoy!