Roof Ledger Size

Rafters should be attached to the ledger boards with sloped joist hangers and to the beam using type h ties.

Roof ledger size.

An essential part of planning a patio roof or gazebo project is determining the number size and spacing of rafters beams and posts according to the loads they will carry. Maximum rafter spans for a patio roof. It depends on the size of the deck the required live loads form snow etc in your area and the type of wall and attachment. Bolts and screws must be located 2 in.

Structural wood lumber engineering properties 5 and larger. Down from top and up from bottom of ledger and staggered up down. The ledger should be attached before the foundation is built for a deck patio roof posts and other structure. Related lumber wood engineering data.

The ledger typically a 2 by 6 is usually designed to hold one end of the patio roof rafters. Rafter spacing rafters must be strong enough to hold the roof sheathing and the shingles. Structural deck ledger screws left are easier to install than 1 2 in. If your local building authority has a rafter spacing code you may not space rafters wider than required by code.

You have not provided enough information to size the ledger safely. In areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. Parts of a house attached patio roof. For instance the international residential code which differs by state and locality indicates in section 502 6 2 of its new jersey code that joists framing into the side of a wood girder shall be supported by approved framing anchors or on ledger strips not less than nominal 2 inches by 2 inches.

This is something that greatly depends on size of the structure you are planning on constructing span and specie of the lumber used. Max gap between ledger and wall sheathing is in so no you can t use the in. Locating and mounting the ledger is normally a fairly easy process. I would suggest using this awc calculator in order to determine size of the rafters needed.

Typical rafter spacing codes will specify a minimum spacing of 16 inches 19 2 inches or 24 inches. It is always better to have a large rafter rather than be concerned with a sagging roof. Plus you need to double fasteners at ledger butts and ends. In this application the limiting factor in the connection is the wood ledger and band joist.

Bolt with spacer option over the siding unless it s t 1 11. Rough lumber cannot be less than than 1 8 3 2mm thicker or wider than the nominal finished thickness or width except that 20 of a shipment cannot be less than 2 32 2 4mm thicker or wider.