ECN Forum Forums General Topics of the Trade General Discussion Area Setting boxes in a block wall

I worked on a prison for about 13 months setting boxes with the masonry crew.

I had best luck using 4x4 boxes and deep (1" or 1-1/4") mudrings. You can tie the boxes forward with wire across a scrap of ENT.

Also, you can avoid the connectors at the boxes on poured walls. Leave the ENT long and chop it short after the pour is dry. That way your boxes are adjustable - and quickly installed - as the blocks are being laid.