I put up shelving in my workshop for empty Ice cream boxes. I re-used pallet planks and metal rods that pushed into the wall.
|The planks got cleaned up with a angle grinder sander|
|The off-cut rods got hammered straight|
|Rods were cut to length, attachment plates cut and drilled|
|Attachment plates welded to rods|
|Holes in the wall, measured, drilled, rods inserted and planks screwed to them|