N.M. Code R. § 14.7.4.26

Current through Register Vol. 35, No. 16, August 27, 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. Code R. § 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