Statutes, codes, and regulations
New Mexico Administrative Code
Title 14 - HOUSING AND CONSTRUCTIONChapter 7 - BUILDING CODES GENERAL
Part 4 - 2021 NEW MEXICO EARTHEN BUILDING MATERIALS CODE
Section 14.7.4.26 - LINTELS

N.M. Admin. Code § 14.7.4.26

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Current through Register Vol. 35, No. 23, December 10, 2024
Section 14.7.4.26 - LINTELS
A.General. Lintels of wood or concrete are allowed. The bearing length of any lintel shall not be reduced by an angled or splayed window or door opening. Other lintel designs are accepted providing that engineering is submitted for review by the building official.
B.Wood lintels. When an engineer's drawing and seal is not provided for lintels, all wood lintels shall conform to Table 5 and have a fiber stress rating of at least 850 psi.

Table 5 CEB WALL WOOD LINTEL SCHEDULE

MINIMUM FIBER STRESS 850 PSI

Wall Width

Max. Span

Size

Bearing length on earth wall

Load Capacity

10"

4'-0"

10" x 6"

12"

860 PLF

6'-0"

10" x 8"

12"

1020 PLF

8'-0"

10" x 10"

18"

1150 PLF

10'-0"

10" x 12"

24"

1000 PLF

12'-0"

10" x 14"

24"

1000 PLF

12"

4'-0"

10" x 6"

12"

860 PLF

6'-0"

10" x 8"

12"

1020 PLF

8'-0"

10" x 10"

18"

1150 PLF

10'-0"

10" x 12"

24"

1000 PLF

12'-0"

10" x 14"

24"

1000 PLF

14"

14"

4'-0"

12" x 6"

12"

950 PLF

6'-0"

12" x 8"

12"

1150 PLF

8'-0"

12" x 10"

18"

1300 PLF

10'-0"

12" x 12"

24"

1300 PLF

12'-0"

12" x 14"

24"

1200 PLF

C.Concrete lintels. When an engineer's drawing and seal is not provided for lintels, all concrete lintels shall conform to table 6 and have a minimum strength of 3000 psi.

Table 6 CEB WALL CONCRETE LINTEL SCHEDULE MIN. 3000 psi

Maximum Span

Minimum depth*

Reinforcing

Maximum Capacity per linear foot

Bearing length on earth wall

Less than 6' - 0"

8"

2 - # 4

1500 lbs.

12"

6' - 0" to 10'- 0"

12"

3 - # 5

1500 lbs.

18"

11' - 0" to 16'- 0"

16"

3 - # 6

1500 lbs.

24"

* SIZE Wall width X depth of lintel

N.M. Admin. Code § 14.7.4.26

14.7.4.26 NMAC - Rp, 14.7.4.26 NMAC, 1-28-11, Adopted by New Mexico Register, Volume XXVII, Issue 21, November 15, 2016, eff. 11/15/2016