Mounting a beam with stonework
If you are mounting a mantel where there will be stonework laid later, we reccomend that you use steel straps on your mantel. We have steel straps available for mounting. Please inquire if you would like to purchase these from us. These straps are predrilled with holes every 2 inches.
The steel straps are screwed to the back of the beam, with one hole extending below the beam and 2 to 3 holes extending above the beam. We suggest that you use one strap per 25 pounds (ie: 4 straps for a 100 pound beam).
Locate the wood framing on the wall and attach straps using 3 to 3 1/2 inch screws.
Hint: To keep from burying your mantel in the stone, you can build out the back of your mantel by adding a 2 by 8 board to it. Then you would attach the straps to the 2 by 8 and mount as described above. This allows more of the beam to protrude above your fireplace. The stonework then goes around the mounted mantel.