Pallet plank shelf

I was needing to make some shelving and decided it would be a good idea to make some brackets round the planks from a pallet I had lying in my garage for years.
I measured up the planks (~74x16mm) and then drew this bracket up.
I have a design for two planks to make it a deeper shelf, but I've not tested it out yet.

There are screw holes on the bottom of the bracket (if you decide to use it that way up) to hold the plank in place, but mine were really tight and didn't require it.