Fastening a ledger to concrete.
Attaching ledger board to concrete block wall.
There are a handful of manufacturers that produce epoxy and other adhesive anchors that are tested for use in hollow cmu.
Some landscape designs call for a deck to join with a cinder block wall at a property line a building or a planter.
The deck to block connection is done with a ledger board attached to the block.
Position the ledger against the wall and mark the anchor positions through the hole onto the wall.
When working with cinder block the best fasteners available are double threaded concrete screws.
Place the board against the wall and mark the edges and the top so that you know where to fit the board when you are ready to install it.
Repeat for each hole making sure that each screw is run all the way in until the head is flush.
Yes there are products available for anchoring a ledger board to hollow concrete block foundations concrete masonry unit cmu.
Line up the pilot holes in the board with those on the block.
On this project the 2 10 joists of the main deck frame sit just about even with the top of the foundation and a landing framed with 2x8s sits atop the main frame serving as a transition point.
To attach a ledger against a wall through brick veneer.
Mark anchor locations on your ledger and drill through the board with a bit.
Can i attach my deck to a hollow block concrete foundation.
The ledger is not only the structural connection between the deck and the house.
Ledger board attachment to a solid concrete foundation wall when attaching a ledger board to a masonry wall you will want to first cut the ledger board to size and have two helpers hold it in place so you can drill two holes every 12 through the wood where your bolts will be installed.
Drill through the brick veneer with a inch masonry bit in a hammer drill until you reach the wood frame.
Hold the ledger board in place on the cinder block.
This wood strip allows other pieces to be joined to the wall with relative ease.
Step 3 drill the holes for the installation you will likely need two helpers to hold the ends of the ledger board while you get ready to attach it to the masonry wall.
It s also what establishes the overall height and levelness of the entire deck frame.
Beginning from one end drive one 2 1 2 inch tapcon style concrete screw through each pilot hole in the board and into the cinder block.
To attach a ledger to an icf wall the irc calls for direct concrete to wood contact which is usually accomplished with anchor tunnels these plastic inserts thread into 6 inch diameter holes drilled in the foam forms figure 2.
The fourth technique involves securing the ledger to a concrete foundation wall rather than to the first floor band board.