Similarly where "ledgers" are nailed to wall studs to support stair landing the method is not specifically in the code and yet inspectors will require joist hangers for joist attached to this board!įWIW we have residential garages with wood decks or floors constructed in accordance with the live load table. The new AWC DCA can be used as a reference where it prescribes attachments of beams but not girders to the ledger. Could attach the ledger strip or hangers directly to the band board but would be more work to achieve the same result as adding a ledger board.ĭeck is defined as a floor system and doesn't necessary have to be open to the exterior. In effect what happens is the band board will work as a girder and with the ledger board as a built-up beam. What we may do is analyze or pull from other applications for guidance for example floor attached to masonry walls in R606. Rick there are many terms that are not defined in the code such as ledger board and others that have the dual duty as beams and headers. Ledger strip supporting joists or rafters Rim joist to top plate, toe nail (roof applications also)īuilt-up girders and beams, 2-inch lumber layersģ2" o.c. Wider than 1" × 8" sheathing to each bearing, face nailġ" × 6" subfloor or less to each joist, face nailĢ" subfloor to joist or girder, blind and face nail Top plates, laps at corners and intersections, face nailġ" brace to each stud and plate, face nailġ" × 6" sheathing to each bearing, face nailġ" × 8" sheathing to each bearing, face nail ![]() Sole plate to joist or blocking at braced wall panels Sole plate to joist or blocking, face nail Roof rafters to ridge, valley or hip rafters:īuilt-up header, two pieces with 1/2" spacerĭouble top plates, minimum 24-inch offset of end joints, TABLE R602.3(1) FASTENER SCHEDULE FOR STRUCTURAL MEMBERSīlocking between joists or rafters to top plate, toe nailĬeiling joists not attached to parallel rafter, laps over partitions, face nailĬollar tie rafter, face nail or 11/4" × 20 gage ridge strap Tail joists over 12 feet (3658 mm) long shall be supported at the header by framing anchors or on ledger strips not less than 2 inches by 2 inches (51 mm by 51 mm). Approved hangers shall be used for the header joist to trimmer joist connections when the header joist span exceeds 6 feet (1829 mm). ![]() When the header joist span exceeds 4 feet (1219 mm), the trimmer joists and the header joist shall be doubled and of sufficient cross section to support the floor joists framing into the header. ![]() Single trimmer joists may be used to carry a single header joist that is located within 3 feet (914 mm) of the trimmer joist bearing. When the header joist span does not exceed 4 feet (1219 mm), the header joist may be a single member the same size as the floor joist. Openings in floor framing shall be framed with a header and trimmer joists. 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 (51 mm by 51 mm).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |