Recess Outlet in Block wall
I have recessed many boxes in block walls, and I can say for sure it is not easy.
One thing to watch for is that often times a cavity is poured solid in a block wall. As mentioned above each block has two to three cavities. When the blocks are stacked these cavities line up, one on top of the next. Inside those cavities is where the block layers dump all there scrap concrete. Often times, in addition, one out of evey so many cavities is intentionally poured solid to add strength to the wall.
So before you go hammering out a hole. Tap on the blocks with the back of a hammer and be sure you find a good run of hollows from rec hight up to the top of the wall.
A good trick for fishing the wire is to tie a six inch length of jack chain onto a light weight string. drop the chain from the top use the string to jeep bouncing the chain past junk concrete till the chain falls below the level of your outlet opening. then you can reach in and grab the string with a hook make of scrap wire.
Last edited by jwhite; 11-04-2007 at 09:06 AM.