"Claude Hopper" wrote in message
...

I invariably end up approximating where I think the studs are, then
punching trial holes with an awl. This leaves me patching lots of
little trial holes when I'm done.

Any suggestions?

You could probably use an infrared camera and a heat gun. Heat the wall
and then look at it with the camera. The drywall that is against studs
will change temperature more slowly; heat up slower, cool down slower
thus allowing you to see where the studs are.

I hereby nominate Claude for the AHR Rube Goldberg award of the month;-)