Recycling drawer wood and modifiying a shelf brackets I build two parts to adapt it to my window and create a cat shelf in order to our gossip cat can feels fullfilled.

The first part is to hold the shelf, join shelf bracket and wood with a screw, the second part is to fit it with the wall due to that screw head separates it so, I decided create it instead make the the first part thinner with chamfered screw holes.