Gregory Highway W-Beam guardrail is produced in standard AASHTO 12'-6" or 25'-0" lengths. Custom lengths and custom post-hole spacing are available on request. Gregory W-Beam highway guardrail is offered in 10-gauge or 12-gauge steel, four types of finishes, and in pre-curved shapes as part of our commitment to value.

We begin with prime steel that matches requirements for quality, physical properties, and chemistry. A multi-stage cleaning process prepares the metal for galvanizing on Gregory's own Modified Sendzimir Continuous Galvanizing Line. Production then pierces the steel with holes and/or slots (to either industry standards or project specifications) and then roll-forms it into the W-Beam profile in one continuous process.

Gregory continuously galvanized steel assures a consistent finish while eliminating sharp points and uneven zinc build-up that is typically found in hot-dip galvanized products. While most highway guardrail manufactured by Gregory is supplied in galvanized finish, it is also available in black, painted epoxy coatings, or weathered steel as alternative finishes for aesthetic applications.

Gregory W-Beam guardrail is manufactured to AASHTO specifications in M-180 Class A or B, and finish types 1, 2, 3, or 4. Every piece of guardrail is stamped with a brand registration that is repeated throughout the entire length of the rail.


Gregory Stamping Code:

  1. Manufacturer: GH=Gregory highway
  2. AASHTO Specifications
  3. Mill Heat Number Code
  4. Galvanized Lot
    09 = Week (9th week)
    07 = Year (2007)
  5. Class
    Class A = 12 gauge
    Class B = 10 gauge
  6. Type
    Type 1 = Zinc coated 1.8 oz/sq. ft. (550 g/sq. m.) minimum single spot
    Type 2 = Zinc coated 3.6 oz/sq. ft. (550 g/sq. m.) minimum single spot
    Type 3 = Uncoated Steel
    Type 4 = Weathering Steel