Download our industry standard Fiberglass Grating Load Table, in PDF format.

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Molded Grating Resin Systems

National Grating Fiberglass Trench and Drain Grates are available in two standard resin systems. Each providing different levels of corrosion protection. Both resin systems meet Class 1 Flame Spread Rating per ASTM E-84 test standards.

Polyester: A premium-grade isophthalic polyester resin system that provides excellent corrosion protection. Standard colors: Dark Gray, Light Gray, Yellow, and Green. Equivalent to Fiberglass Grating Competitor Brand and Strongwell Duragrate PP.

Vinyl ester: A chemically resistant system that provides the highest level of corrosion protection. Standard colors: Yellow, Dark Gray, and Orange. Equivalent to Fiberglass Grating Vinyl Ester and Strongwell Duragrate VE.


Common Sizes and Applications

Common sheet sizes for FRP grating include: 4’x8′, 4’x12′, and 3’x10′. Common thicknesses include: 1″, 1.5″ and 2″

Our molded FRP gratings have applications in many industries, including:

  • chemical processing
  • food & beverage
  • marine
  • oil & gas
  • power
  • manufacturing
  • construction
  • pharmaceutical
  • metals & mining
  • pulp & paper
  • recreation
  • water parks
  • telecommunications
  • IT server farms
  • shipping centers
  • transportation facilities
  • water & waste treatment, and
  • numerous architectural uses.


Strong, Lightweight and Corrosion-Resistant
Molded FRP Grating has the strength of steel, but it won’t corrode like steel can.

Safer Walking Surface for Trench Covers and Fiberglass Walkways
A coarse, gritted epoxy coating enhances traction.

Support and Stability
Molded Fiberglass Grating Panels are equally strong in both directions

Easy Fabrication
FRP Flooring Panels are lightweight, easy to transport, and can be cut and fabricated using standard hand tools.

Extended Life
The coated resin surface increases resistance to chemical corrosion and continuous UV exposure.

Bulk and Wholesale Discounts Available on Large Orders


we ship the molded fiberglass grating on this load table to every region of the USA!

The products in this Fiberglass Grating Load Table meet required frp specs Fast Delivery via our Superior Logistics Network

National Grating provides molded fiberglass grating, fiberglass tube, fiberglass angle and hardware to ALL USA States including California, New York, Illinois, Nevada, Oregon, Alaska, Florida, New York, Illinois, Nevada, Texas, New Mexico, Indiana, Tennessee, Colorado,Pennsylvania, Ohio, Georgia, Michigan, Virginia, Massachusetts, Arizona, Washington, North Carolina, Maryland, Missouri, Wisconsin and Utah. Our pricing and service experts are standing by to help to find the best product for your project. With many varieties in stock and expedited shipping, we can supply your project with molded fiberglass grating at the best price.

molded fiberglass grating has superior radio frequency transparency to steel. Use molded fiberglass grating from National Grating to protect your wifi network and cellular telephone signals.

This product meets required frp specs Molded Fiberglass Grating Radio Frequency Transparency

In today’s connected world, we depend on cellular telephone signals, Wi-Fi networks and over the air radio and television signals. Wi-Fi and Bluetooth connectivity are essential to on-site work environments. Steel structures significantly disrupt these signals. The products on this Fiberglass Grating Load Table are an essential part of FRP building structures that are “electronically transparent” and do not interfere with radio frequency transmissions.

We ship products on this Fiberglass Grating Load Table to all major cities including:

Texas: Houston, Dallas / Fort Worth, San Antonio, Austin, El Paso, Arlington, Dallas, and Brownsville

Florida: Jacksonville, Miami, Tampa, Orlando, and St. Petersburg

Georgia: Atlanta, Augusta, Columbus, Macon, Savanna, Athens, Sandy Springs, and Roswell

North Carolina: Charlotte, Raleigh , Greensboro , Durham , Winston-Salem , Fayetteville , and Cary

Massachusetts: Boston, Worcester, Providence, Springfield, Bridgeport, New Haven, Hartford

New York: Buffalo, Rochester, Monroe, Yonkers, Westchester, Syracuse, and Albany.

New Jersey: Newark , Jersey City, Paterson, Elizabeth, Edison, Woodbridge, and Lakewood

Illinois: Chicago , Aurora, Rockford , Joliet , Naperville, Springfield , Peoria, and Elgin

Virginia: Virginia Beach, Norfolk, Chesapeake, Richmond, Newport News, Alexandria, Hampton

Pennsylvania: Philadelphia, Pittsburgh, Allentown, Erie, Reading, Scranton, and Bethlehem

Indiana: Indianapolis, Fort Wayne, Evansville, South Bend, Carmel, Fishers, Bloomington, Hammond

Ohio: Columbus, Cleveland, Cincinnati, Toledo, Akron, Dayton , Parma , Canton, and Youngstown

California: Los Angeles, San Diego, San Jose, San Francisco, Fresno, Sacramento, and Oakland

Michigan: Detroit, Grand Rapids, Warren , Sterling Heights, Lansing Eaton & Ingham , and Ann Arbor

We can ship the products on this Fiberglass Grating Load Table within 2 business days to the following:

Hartford, Nampa, Meridian, Idaho Falls, Bangor, Augusta, Manchester, Portsmouth, Concord, Providence, Newport, Warwick, Missoula, New Haven, Stamford, Anchorage, Juneau, Fairbanks, Burlington, and Cheyenne,Waterbury, Roanoke, Gary, Little Rock, Fayetteville, Hot Springs, Louisville, Des Moines, Cedar Rapid, Memphis, Knoxville, St. Louis, Kansas City, Baltimore, Annapolis

Lexington, Frankfort, Frederick, Birmingham, Mobile, Huntsville, Milwaukee, Madison, Green Bay, Minneapolis, St. Paul, Duluth Shreveport, Colorado Springs,  Bolder, Fort Collins, Columbia, Charleston, Mount Pleasant, New Orleans, Baton Rouge
Seattle, Spokane, Tacoma, Phoenix, Tucson, Scottsdale, Nashville, Portland, Eugene, Bend, Oklahoma City, Tulsa, Norman

Salt Lake City, Park City, St. George, Wichita, Topeka, Henderson, Carson City, Iowa City, Jackson, Biloxi, Gulfport, Albuquerque Santa Fe, Charleston, Billings, Bozeman, Wilmington, Dover, Newark, Sioux City, Rapid City, Fargo, Morgantown, Huntington, Boise, Bismarck


Our FRP experts are ready to help.