Scaling the dimensions usually is the right thing and it seems the right thing here. 3/4" wood for the box, etc. should do quite nicely, especially as the porthole glass is a bit lighter than a full thickness mirror. Bob May My new web space address is http://webu.wigloo.com/bobmay/ or http://nav.to/bobmay and my new email address is bobmay@nethere.com Bob May