Can you attach a ledger board to cinder block?

Yes, there are products available for anchoring a ledger board to hollow concrete block foundations (concrete masonry unit, CMU). There are a handful of manufacturers that produce epoxy and other adhesive anchors that are tested for use in hollow CMU.

Can you use Tapcons for deck ledger board?

Titen HD anchors (Tapcons on steroids as some call them) even in galvanized finish are not to be used in exterior application. Never to be used to attach Ledger Boards.

Can you hammer nails into concrete?

Choose hammer-set anchor nails for concrete walls. They’re tough enough to be hammered into concrete, but you first need to drill a guide hole into the wall. Look for hammer-set anchor nails at your local hardware or home improvement store. You can also order hammer-set anchor nails online.

How do you attach a ledger board to a hollow concrete block?

When attaching a ledger to hollow masonry block, use adhesive anchors, such as the Epcon A7 from ITW Red Head (800/348-3231, www.itw-redhead.com) or the Hilti HIT HY 20 system (866/445-8827, www.us.hilti.com).

How do you attach a ledger board to a cinder block deck?

Hold the ledger board in place on the cinder block. Line up the pilot holes in the board with those on the block. 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.

How far apart should lag bolts be on a ledger board?

The fasteners must be compatible with pressure-treated lumber to prevent corrosion. Typically, you will need to install your bolts alternating high and low 2″ from the top and bottom of the ledger board. As a rule of thumb, bolts can be spaced 16″ on center for supporting joist span up to 12′ in length.

How many lag bolts for a ledger board?

The International Residential Code lists two fasteners for directly attaching ledgers to a house: 1/2-inch-diameter hot-dip-galvanized hex-head machine bolts and 1/2-inch-diameter hot-dip-galvanized lag screws.

Do ledger boards need to be continuous?

The ledger board doesn’t have to be one continuous board. It can be a series of broken sections if it is solidly attached. This will require extra bolts and installing a 2x nailer across the top of the vent to secure the decking along the house wall.

Can you attach wood directly to concrete?

Wood can be attached directly to interior concrete using screws, screws with anchors, anchor bolts, nails, or adhesives. There are a variety of different screw-down fasteners, but all require a predrilled hole. Some require anchors inserted into the concrete, and others bite and grip the edges of the hole.