I've been researching this for some time now and I just can't work out how to do it.

I need to cut a roundish shape from another the only way I can think to do it is through the make hole tool but its deleting the wrong bit!

To put it in context I'm making a rabbit hutch specifically the divider.

https://www.simply-summerhouses.co.uk...h_lid_shdw.JPG

Any help would be greatly appreciated, I also need to know how to make a wire mesh for the front of the hutch! :S