Use of a ledger plate provides an adequate anchor for structures that can be attached to a building.
Using a ledger plate requires preparation of the building where the ledger is to be installed.
If the deck is connected to a building, install a ledger plate at the correct location and elevation.
Post and Beam Framing with a Ledger Plate. To set the post heights when using a ledger plate, a level stringline must be extended from the top of the ledger to a post on the edge of the project.
Post and Beam Framing Without a Ledger Plate. If no ledger plate is used, mark the desired finish floor elevation on one post.
Platform framing also begins with the placement of ledger plate and posts for the deck.
If the roof is to be installed flush to a building wall, follow the instructions provided in Chapter 29 for attaching a ledger plate. If an eave provides adequate vertical clearance for both the building's occupants and the roof structure, connection below the eave is possible.
Rafters can be supported directly on a ledger plate or hung from an eave as described in the previous section.