| 9.23.12. |
Framing over Openings |
| 9.23.12.1. |
Openings in Non-Loadbearing Walls
- Except as provided in Sentence (2), openings in non-loadbearing walls shall be framed with not less than 38 mm material the same width as the studs, securely nailed to adjacent studs.
- Openings for doors in non-loadbearing walls required to be fire separations with a fire-resistance rating shall be framed with the equivalent of at least two 38 mm thick members that are the same width as the wall plates.
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| 9.23.12.2. |
Openings in Loadbearing Walls
- Openings in loadbearing walls greater than the required stud spacing shall be framed with lintels designed to carry the superimposed loads to adjacent studs. (See Note A-9.23.10.6.(3).)
- Except as provided in Sentence 9.23.12.3.(2), where 2 or more members are used in lintels, they shall be fastened together with not less than 82 mm nails in a double row, with nails not more than 450 mm apart in each row.
- Lintel members are permitted to be separated by filler pieces.
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| 9.23.12.3. |
Lintel Spans and Sizes
- Spans and sizes of wood lintels shall conform to the spans shown in Span Tables 9.23.4.2.-L and 9.23.12.3.-A to 9.23.12.3.-D
- for buildings of residential occupancy,
- where the wall studs exceed 38 mm by 64 mm in size,
- where the spans of supported joists do not exceed 4.9 m, and
- where the spans of trusses do not exceed 9.8 m.
- In loadbearing exterior and interior walls of 38 mm by 64 mm framing members, lintels shall consist of
- 64 mm thick members on edge, or
- 38 mm thick and 19 mm thick members fastened together with a double row of nails not less than 63 mm long and spaced not more than 450 mm apart.
- Lintels referred to in Sentence (2)
- shall be not less than 50 mm greater in depth than those shown in Span Tables 9.23.4.2.-L and 9.23.12.3.-A to 9.23.12.3.-D for the maximum spans shown, and
- shall not exceed 2.24 m in length.
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