I am going to install heavy wall cabinets to a stucco covered block wall. After much research, I decided that the best attachment would be with toggles (Snaptoggle). However, since stucco covers the block and hides it's outline, finding the hollow portion to insert the toggle is almost impossible without drilling a multitude of exploratory holes. Anybody have a better method for finding the hollow portion?
Walls – How to find the hollow cavities in a concrete block wall through stucco
walls
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Best Answer
If you are looking for hollow cells, as opposed to filled reinforced cells, I'd use an infrared heat detector. It will expose both vertical and horizontal. (By the way, some concrete blocks are 12"...used as pilasters, etc.)