N.M. Stat. § 77-16-6
Current through 2024, ch. 69
When the fence is constructed of lumber and posts the boards shall be at least one inch thick and six inches wide with posts as described in the preceding section [77-16-4 NMSA 1978] not over eight feet apart and firmly set in the ground as described in said section. The boards [are] to be firmly nailed to the posts. The space between the boards [is] not to be more than six inches.
NMS § 77-16-6