2304.10.1 Fastener requirements.
BC § 2304.10.1
Connections for wood members shall be designed in accordance with the appropriate methodology in Section 2301.2. The number and size of fasteners connecting wood members shall not be less than that set forth in Table 2304.10.1. Table 2304.10.1Fastening Schedule Description of Building ElementsNumber and Type of FastenerSpacing and LocationDescription of Building ElementsNumber and Type of FastenerSpacing and LocationRoof1. Blocking between ceiling joists, rafters or trusses to top plate or other framing below3-8d common (2 1/2" × 0.131"); or3-10d box (3" × 0.128"); or3-3" × 0.131" nails; or3-3" 14 gage staples, 7/16" crownEach end, toenailBlocking between rafters or truss not at the wall top plate, to rafter or truss2-8d common (2 1/2" × 0.131")2-3" × 0.131" nails2-3" 14 gage staplesEach end, toenail2-16 d common (3 1/2" × 0.162")3-3" × 0.131" nails3-3" 14 gage staplesEnd nailFlat blocking to truss and web filler16d common (3 1/2" × 0.162") @ 6" o.c.3" × 0.131" nails @ 6" o.c.3" × 14 gage staples @ 6" o.cFace nail2. Ceiling joists to top plate3-8d common (2 1/2" × 0.131"); or3-10d box (3" × 0.128"); or3-3" × 0.131" nails; or3-3" 14 gage staples, 7/16" crownEach joist, toenail3. Ceiling joist not attached to parallel rafter, laps over partitions (no thrust) (see Section 2308.7.3.1, Table 2308.7.3.1)3-16d common (3 1/2" × 0.162"); or4-10d box (3" × 0.128"); or4-3" × 0.131" nails; or4-3" 14 gage staples, 7/16" crownFace nail4. Ceiling joist attached to parallel rafter (heel joint) (see Section 2308.7.3.1, Table 2308.7.3.1)Per Table 2308.7.3.1 Face nail5. Collar tie to rafter3-10d common (3" × 0.148"); or4-10d box (3" × 0.128"); or4-3" × 0.131" nails; or4-3" 14 gage staples, 7/16" crownFace nail6. Rafter or roof truss to top plate (See Section 2308.7.5, Table 2308.7.5)3-10 common (3" × 0.148"); or3-16d box (3 1/2" × 0.135"); or4-10d box (3" × 0.128"); or4-3" × 0.131 nails; or4-3" 14 gage staples, 7/16" crownToenail c7. Roof rafters to ridge valley or hip rafters; or roof rafter to 2-inch ridge beam2-16d common (3 1/2" × 0.162"); or3-10d box (3" × 0.128"); or3-3" × 0.131" nails; or3-3" 14 gage staples, 7/16" crown; or End nail3-10d common (3" × 0.148"); or4-16d box (3 1/2" × 0.135"); or4-10d box (3" × 0.128"); or4-3" × 0.131" nails; or4-3" 14 gage staples, 7/16" crownToenailWall8. Stud to stud (not at braced wall panels)16d common (3 1/2" × 0.162"); 24" o.c. face nail10d box (3" × 0.128"); or3" × 0.131" nails; or3-3" 14 gage staples, 7/16" crown16" o.c. face nail9. Stud to stud and abutting studs at intersecting wall corners (at braced wall panels)16d common (3 1/2" × 0.162"); or 16" o.c. face nail16d box (3 1/2" × 0.135"); or12" o.c. face nail3" × 0.131" nails; or3-3" 14 gage staples, 7/16" crown12" o.c. face nail10. Built-up header (2" to 2" header)16d common (3 1/2" × 0.162"); or16" o.c. each edge, face nail16d box (3 1/2" × 0.135")12" o.c. each edge, face nail11. Continuous header to stud4-8d common (2 1/2" × 0.131"); or4-10d box (3" × 0.128")Toenail12. Top plate to top plate16d common (3 1/2" × 0.162"); or16" o.c. face nail10d box (3" × 0.128"); or3" × 0.131" nails; or3" 14 gage staples, 7/16" crown12" o.c. face nail13. Top plate to top plate, at end joints8-16d common (3 1/2" × 0.162"); or12-10d box (3" × 0.128"); or12-3" × 0.131" nails; or12-3" 14 gage staples, 7/16" crownEach side of end joint, face nail (minimum 24" lap splice length each side of end joint)14. Bottom plate to joist, rim joist, band joist or blocking (not at braced wall panels)16d common (3 1/2" × 0.162"); or 16" o.c. face nail16d box (3 1/2" × 0.135"); or3" × 0.131" nails; or3" 14 gage staples, 7/16" crown12" o.c. face nail15. Bottom plate to joist, rim joist, band joist or blocking at braced wall panels2-16d common (3 1/2" × 0.162"); or3-16d box (3 1/2" × 0.135"); or4-3" × 0.131" nails; or4-3" 14 gage staples, 7/16" crown16" o.c. face nail16. Stud to top or bottom plate4-8d common (2 1/2" × 0.131"); or4-10d box (3" × 0.128"); or4-3" × 0.131" nails; or4-3" 14 gage staples, 7/16" crown; orToenail2-16d common (3 1/2" × 0.162"); or3-10d box (3" × 0.128"); or3-3" × 0.131" nails; or3-3" 14 gage staples, 7/16" crownEnd nail17. Top plates, laps at corners and intersections2-16d common (3 1/2" × 0.162"); or3-10d box (3" × 0.128"); or3-3" × 0.131" nails; or3-3" 14 gage staples, 7/16" crownFace nail18. 1" brace to each stud and plate2-8d common (2 1/2" × 0.131"); or2-10d box (3" × 0.128"); or2-3" × 0.131" nails; or2-3" 14 gage staples, 7/16" crownFace nail19. 1" × 6" sheathing to each bearing2-8d common (2 1/2" × 0.131"); or2-10d box (3" × 0.128")Face nail20. 1" × 8" and wider sheathing to each bearing3-8d common (2 1/2" × 0.131"); or3-10d box (3" × 0.128")Face nailFloor21. Joist to sill, top plate, or girder3-8d common (2 1/2" × 0.131"); or 3-10d box (3" × 0.128"); or3-3" × 0.131" nails; or3-3" 14 gage staples, 7/16" crownToenail22. Rim joist, band joist, or blocking to top plate, sill or other framing below8d common (2 1/2" × 0.131"); or 10d box (3" × 0.128"); or3" × 0.131" nails; or3" 14 gage staples, 7/16" crown6" o.c., toenail23. 1" × 6" subfloor or less to each joist2-8d common (2 1/2" × 0.131"); or 2-10d box (3" × 0.128")Face nail24. 2" subfloor to joist or girder2-16d common (3 1/2" × 0.162")Face nail25. 2" planks (plank & beam – floor & roof)2-16d common (3 1/2" × 0.162")Each bearing, face nail26. Built-up girders and beams, 2" lumber layers20d common (4" × 0.192") 32" o.c., face nail at top and bottom staggered on opposite sides10d box (3" × 0.128"); or3" × 0.131" nails; or3" 14 gage staples, 7/16" crown24" o.c. face nail at top and bottom staggered on opposite sidesAnd:2-20d common (4" × 0.192"); or 3-10d box (3" × 0.128"); or 3-3" × 0.131" nails; or3-3" 14 gage staples, 7/16" crownEnds and at each splice, face nail27. Ledger strip supporting joists or rafters3-16d common (3 1/2" × 0.162"); or4-10d box (3" × 0.128"); or4-3" × 0.131" nails; or4-3" 14 gage staples, 7/16" crownEach joist or rafter, face nail28. Joist to band joist or rim joist3-16d common (3 1/2" × 0.162"); or 4-10d box (3" × 0.128"); or4-3" × 0.131" nails; or4-3" 14 gage staples, 7/16" crownEnd nail29. Bridging or blocking to joist, rafter or truss2-8d common (2 1/2" × 0.131"); or 2-10d box (3" × 0.128"); or2-3" × 0.131" nails; or2-3" 14 gage staples, 7/16" crownEach end, toenailWood structural panels (WSP), subfloor, roof and interior wall sheathing to framing and particleboard wall sheathing to framing aEdges(inches)Intermediate supports(inches)30. 3/8" – 1/2"6d common or deformed (2" × 0.113") (subfloor and wall)6128d common or deformed (2 1/2" × 0.113") (roof) or RSRS-01 (2 3/8" x 0.113") nail (roof) d6122 3/8" × 0.113" nail (subfloor and wall) 6121 3/4" 16 gage staple, 7/16" crown(subfloor and wall)482 3/8" × 0.113" nail (roof)481 3/4" 16 gage staple, 7/16" crown (roof)3631. 19/32" – 3/4"8d common (2 1/2" × 0.131"); or6d deformed (2" × 0.113") (subfloor and wall)6128d common or deformed (2 1/2" × 0.131") or RSRS-01 (2 3/8" × 0.113" nail (roof) d6122 3/8" × 0.113" nail; or2" 16 gage staple, 7/16" crown4832. 7/8" – 1 1/4"10d common (3" × 0.148"); or8d deformed (2 1/2" × 0.131") 612Other exterior wall sheathing33. 1/2" fiberboard sheathing b1 1/2" galvanized roofing nail(7/16" head diameter); or1 1/4" 16 gage staple with 7/16" or 1" crown3634. 25/32" fiberboard sheathing b1 3/4" galvanized roofing nail(7/16" diameter head); or1 1/2" 16 gage staple with 7/16" or 1" crown36Wood structural panels, combination subfloor underlayment to framing35. 3/4" and less8d common (2 1/2" × 0.131"); or6d deformed (2" × 0.113")61236. 7/8" – 1"8d common (2 1/2" × 0.131"); or 8d deformed (2 1/2" × 0.131")61237. 1 1/8" – 1 1/4"10d common (3" × 0.148"); or 8d deformed (2 1/2" × 0.131")612Panel siding to framing38. 1/2" or less6d corrosion-resistant siding (1 7/8" × 0.106"); or6d corrosion-resistant casing (2" × 0.099")61239. 5/8"8d corrosion-resistant siding (2 3/8" × 0.128"); or8d corrosion-resistant casing (2 1/2" × 0.113")612Interior paneling40. 1/4"4d casing (1 1/2" × 0.080"); or4d finish (1 1/2" × 0.072")61241. 3/8"6d casing (2" × 0.099"); or 6d finish (Panel supports at 24 inches)612 For SI: 1 inch = 25.4 mm. a. Nails spaced at 6 inches at intermediate supports where spans are 48 inches or more. For nailing of wood structural panel and particleboard diaphragms and shear walls, refer to Section 2305. Nails for wall sheathing are permitted to be common, box or casing. b. Spacing shall be 6 inches on center on the edges and 12 inches on center at intermediate supports for nonstructural applications. Panel supports at 16 inches (20 inches if strength axis in the long direction of the panel, unless otherwise marked). c. Where a rafter is fastened to an adjacent parallel ceiling joist in accordance with this schedule and the ceiling joist is fastened to the top plate in accordance with this schedule, the number of toenails in the rafter shall be permitted to be reduced by one nail. d. RSRS-01 is a Roof Sheathing Ring Shank nail meeting the specifications of ATSM F 1667. (Am. L.L. 2023/077, 6/11/2023, eff. 6/11/2023) Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2023/077.
