Ledger Board Over Wood Siding

The chalk line should be about 1 inch below the door that will open onto the finished deck.

Ledger board over wood siding.

The ledger board is a horizontal framing member usually two by 10 or two by 12 lumber that supports one side of a deck and attaches flat to the wall of a house after removing a section of siding. Set a water level on mark done for the ledger board then make another at a point longer than. Nail undersill trim j channel will also work over the bottom cut using 11 gauge aluminum nails. They said this was intentional so that water wouldn t get behind the siding underneath the ledger.

Mark the ledger length. Make sure you have enough room to install flashing above the ledger board and allow for at least a space above the decking preventing water from wicking upwards into wood siding. Then cut away the siding. Start by making an outline on the siding where you want to position the ledger board.

Make the outline large enough to include space for the deck boards on top the ledger and any trim boards on the sides. Next snap a chalk line across the siding the same length of the board. My contractor installed my ledger board with about a 1 4 to 1 2 overlap on the bottom edge over the hardieplank siding. Using a spade bit bore at least two holes through the ledger board one above each other between each joist.

The wall leg is at least 7 in. Start by using plunge cuts across the top and bottom of the horizontal length of the ledger board followed by the shorter vertical cuts for the ends using a cold chisel. How to attach ledger board on siding mark the top of the ledger. The number of bolts required depends upon the expected load on the deck.

To ensure proper strength a ledger board should be made out of the same size lumber that was used to make the deck joists usually 2 inch by 10 inch boards. This may seem excessively tall but is needed in order for the water resistive barrier wrb and siding to overlap the top. Make a mark where the top of the deck should be the mark should be 1 3 inches below that. After the ledger is installed a second strip of membrane tape is applied over the top of the ledger and about 1 2 in.

This has cause a slight tilt to the ledger board and they said to cut the end of the joists at a matching angle. Bore through the ledger and right through the rim joist and into the blocking. Step 1 determine the size of the ledger board.