RSA 266:10: Height.

I. No vehicle, except a vehicle transporting manufactured housing or modular buildings, whose total height including load is greater than 13 feet, 6 inches, shall be driven on the ways of this state.

II. No manufactured housing or modular building whose total height is greater than 14 feet, 6 inches, shall be transported on the ways of this state. Transport of a manufactured housing unit or modular building that exceeds a total height of 13 feet, 6 inches shall require a non-police escort, equipped in accordance with any rules established by the department of transportation under RSA 21-L:12-a.