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Classifications of highway guardrail
May 04, 2018

Our highway guardrail products are according to the standard of AASHTO M180-2004.


Four types and two classes of guardrail are provided as follows:

Types:

Type I—Zinc coated, 550g/m2 (1.80 oz/ft2) minjmum single-spot.

Type II—Zinc coated, 1100g/m2 (3.6 oz/ft2) minimum single-spot.

Type III—Beams to be painted.

TypeIV—Beams of corrosion resistant steel.


Classes:

Class A—Base metal nominal thickness—2.67 mm (0.105 in).

Class B—Base metal nominal thickness—3.43 mm (0.135 in).


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