Easy2 Technologies - Deck 4: Installing the Deck Ledger Product Demo

Deck 4: Installing the Deck Ledger Instructions

  • Installing Deck Ledger

    The ledger is a critical part of your new deck. It attaches the deck to your house and it is also provides the reference point for laying out the deck. Because of its importance, the ledger must be correctly positioned and fastened very securely to the house. Be sure that you use pressure treated lumber for the ledger. Some things that you should consider is that the ledger should be installed at least one inch below any doors that opens out onto the new deck to prevent water, ice, and snow to from leaking on the bottom door seal.

  • Overview

    The basic steps to installing your deck ledger are to first determine location of the ledger. Then remove the existing siding. Next, you will cut the ledger and put it into place. And finally, you will secure the ledger.

  • Locate the Ledger Position

    Reference your deck plans to determine the exact location and size of the ledger board. You need to cut out the siding on your house where the ledger will be installed. Using a level and mark the siding to match the size of the ledger. The length of the cut out area will actually be longer than the ledger to allow room for the outside joists and any decorative trim you plan to install.

  • Set the Circular Saw

    Set the depth of your circular saw to the exact thickness of your siding. You only want to remove the siding and leave the sheathing underneath intact. Cut around the marked area with the saw.

  • Chisel the Corners

    Some areas, such as corners, that you could not get to with the circular saw. Use a chisel with the flat side facing the finished edge and cut loose any remaining areas.

  • Install the Drip Edge

    Measure the length of the cutout area for the metal drip edge. Which must span the entire length of the opening. Cut the metal drip edge using tin snips. Slip it under the siding.

  • Install the Ledger

    Measure the length needed for the ledger. It will be shorter than the cutout. Mark the ledger lumber and squarely cut it to length. Put the ledger in position in the cut out area. Make sure you center it in the cutout area, leaving room (about 1-1/2 inches) for the outside joists and trim on each side. Tack the ledger in place with a few nails or screws.

  • Secure the Ledger

    About 1-1/2" from the top and bottom edges, drill pilot holes. Each set of pilot holes about 2 feet apart from each other. Then, using a 1" paddle bit, retrace your steps and drill 1/2" deep holes to countersink the washers and heads of the lag bolts.

  • Install the Lag Bolts

    Using a socket wrench, screw in lag bolts with washers in each of the holes. The lag bolts should be about 4" long so that they go through the ledger, the sheathing, and into the header joist.

  • Caulk the Ledger

    Now that the ledger is securely in place, take silicone caulk and fill in the holes with the lag bolts. Then run a bead of caulk along the seam between the siding and drip edge above the ledger.


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