1-1/2" x 1-1/2" Square Mesh

Fiberglass Square Mesh Grating

Fiberglass Square Mesh Grating

1-1/2" x 1-1/2" Square Mesh

1-1/2″ x 1-1/2″ Square Mesh

National Grating fiberglass Square mesh panels are ideal for decking, walkway, and flooring applications in corrosive environments.

1.5″ Square Mesh Grating is the long-lasting solution for rugged applications. Steel and aluminum grating have considerable down-sides; they corrode, wear down quickly, cause maintenance headaches and downtimes, and are costly to install.

National Grating high-strength molded FRP grating can be designed and used like traditional metal grates, but with all the many benefits of fiberglass. 1-1/2″ x 1-1/2″ Square FRP grating is especially useful for replacing steel grating or aluminum grating in corrosive environments or where other types of gratings require frequent replacements. For smaller mesh sizes check out our mini-mesh Fiberglass Grating.

Resin Systems
National Grating Molded Fiberglass is 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

Vinyl ester: A chemically resistant system that provides the highest level of corrosion protection. Standard colors: Yellow, Dark Gray, and Orange


Squre Mesh Grating with S.S. Clip

Square mesh with S.S. Clip

Molded FRP Mesh is available in 1″, 1-1/2″ and 2″ thick Panels.

Standard Panel sizes are 3′ x 10′,  4′ x 8′, 4′ x 12′ and 5′ x 10′.

We can cut down the panels to any size you like, or you can cut them yourself. Be sure to use a diamond-tip blade as a standard saw blade will dull very quickly.

Call us at 1-877-984-7788 for a fabricated quote. 

Strong, Lightweight and Corrosion-Resistant
Fiberglass Square Mesh grating has the strength of steel, but it won’t corrode like steel can.

Safer Walking Surface
A coarse, gritted epoxy coating enhances traction.

Support and Stability
Molded Mesh FRP panels are equally strong in both directions

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

FRP Square Mesh Panels

FRP Square Mesh Panels

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

Not sure which type of grating is best for your application?

Download our Grating Selection Chart use our Quick Quote Form.

Molded Square Mesh or Pultruded Grating?

Fiberglass Grating Applications for Your Industry

Our molded FRP grating has applications in many industries, including:

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

Call us at 1-877-984-7788 to speak with a National Grating FRP Specialist.

Square Mesh FRP

Features of Square Mesh Fiberglass Grating

Corrosion Resistant
Extremely Strong
Impact Resistant
Non-Skid Surface / Anti-Skid
Low Electrical and Thermal Conductivity
Easily Fabricated in the Field


Bulk and Wholesale Discounts Available on Large Orders


Our Fiberglass Grating Houston distributionshipping to Austin, Fort Worth, El Paso, Houston, San Antonio, Dallas, Arlington, Corpus Christi, Plano, Laredo, Lubbock, Garland, Irving, Amarillo, Grand Prairie, and Brownsville.

All our fiberglass grating Houston warehouse products meets required frp specs Fast Delivery via our Superior Logistics Network

National Grating provides mini-mesh molded fiberglass grating to ALL major cities including:

Virginia: Virginia Beach, Norfolk, Chesapeake, Richmond, Newport News, Alexandria, Hampton
Massachusetts: Boston, Worcester, Providence, Springfield, Bridgeport, New Haven, Hartford
Indiana: Indianapolis, Fort Wayne, Evansville, South Bend, Carmel, Fishers, Bloomington, Hammond

Michigan: Detroit, Grand Rapids, Warren , Sterling Heights, Lansing Eaton & Ingham , and Ann Arbor
New Jersey: Newark , Jersey City, Paterson, Elizabeth, Edison, Woodbridge, and Lakewood
Illinois: Chicago , Aurora, Rockford , Joliet , Naperville, Springfield , Peoria, and Elgin

Texas: Houston, Dallas / Fort Worth, San Antonio, Austin, El Paso, Arlington, Dallas, and Brownsville
New York: Buffalo, Rochester, Monroe, Yonkers, Westchester, Syracuse, and Albany.
Pennsylvania: Philadelphia, Pittsburgh, Allentown, Erie, Reading, Scranton, and Bethlehem

Ohio: Columbus, Cleveland, Cincinnati, Toledo, Akron, Dayton , Parma , Canton, and Youngstown
Georgia: Atlanta, Augusta, Columbus, Macon, Savanna, Athens, Sandy Springs, and Roswell
North Carolina: Charlotte, Raleigh , Greensboro , Durham , Winston-Salem , Fayetteville , and Cary

California: Los Angeles, San Diego, San Jose, San Francisco, Fresno, Sacramento, and Oakland
Florida: Jacksonville, Miami, Tampa, Orlando, and St. Petersburg

We can ship within 2 business days to the following Locations:

Iowa City, Jackson, Biloxi, Gulfport, Albuquerque Santa Fe, Charleston, Morgantown, Huntington, Boise, Nampa, Meridian, Idaho Falls, Bangor, Augusta, Manchester, Portsmouth, Concord, Providence, Newport, Warwick, Missoula, Billings, Bozeman, Wilmington, Dover, Newark, Sioux City, Rapid City, Fargo, Bismarck, Anchorage, Juneau, Fairbanks, Burlington, and Cheyenne,Waterbury, Roanoke, Gary, Little Rock, Fayetteville, Hot Springs, Salt Lake City, Park City, St. George, Wichita, Topeka, Henderson, Carson City

Seattle, Spokane, Tacoma, Phoenix, Tucson, Scottsdale, Nashville, Memphis, Knoxville, St. Louis, Kansas City, Baltimore Annapolis, Bolder, Fort Collins, Columbia, Charleston, Mount Pleasant, New Orleans, Baton Rouge, Shreveport, Louisville, Lexington, Frankfort, Frederick, Birmingham, Mobile, Huntsville, Milwaukee, Madison, Green Bay, Minneapolis, St. Paul, Duluth, Colorado Springs,  Portland, Eugene, Bend, Oklahoma City, Tulsa, Norman, Hartford, New Haven, Stamford, Des Moines, Cedar Rapid,

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 mini-mesh fiberglass grating at the best possible price with the lowest freight charges.

Fiberglass Grating 1.5 Inch Square Mesh

Fiberglass Grating 1.5″ Square Mesh

One of the most popular types of Fiberglass Grating we sell is Molded grating with a 1.5″ x 1.5″ Square mesh pattern. With 1/4″ inch bearing bars, the checkerboard 1-1/2″ square mesh pattern creates a 1-1/4″ inch square opening which equals approximately 70% open area.

Typical square mesh pattern of molded FRP grating

Molded FRP Grating

Molded Grating comes in sizes 1″, 1.5″ or 2″ Deep. The most common panel sizes are 3′ x 10, 4′ x 8′, 4′ x 12′ and 5′ x 10′. The larger the span between the supports under the grating, the farther the span, and the stronger and thicker the grating has to be.

This molded fiberglass grating with square mesh pattern is one of many square mesh patterns available from National Grating.

This molded fiberglass grating with square mesh pattern is one of many square mesh patterns in stock and available for quick delivery from National Grating.


For 1″ inch molded grating, the maximum span is typically 24″. Anything farther apart than 2 feet, as you will need 1-1/2 thick or 2″ thick. Take a look at our Grating Selection Chart to see the various grating options depending on the span.

We stock our molded grating in Dark Gray, Light Gray, Yellow, and Green. Call 1-877-984-7788 for up-to-date pricing and availability for the size and color you need. We have warehouse locations throughout USA and Canada, so we will always quote the closest location to you to minimize freight costs.

If you need to cut the FRP grating sheets down to smaller sizes, you can easily cut the fiberglass panels using any saw that you would normally use to cut wood. You can use a skill saw, jig saw, table saw, or reciprocating saw. They key is to use a diamond tip blade. If you try to cut FRP with a regular blade, it will dull far too quickly. Check out our video on How to Cut FRP.

Fiberglass grating will never rust, so it is great for corrosive environments such as as chemical plants, oil and gas, and waste-water treatment facilities. The gritted surface on molded grating provides excellent traction for slippery walkways.

Fiberglass stairs and railing is used instead of steel in swimming pools and water-parks where Chlorine is constantly flowing on the the stairs and decks. We have pultruded fiberglass pool grating for these applications where bare feet walk on the grating, not work boots.

For all FRP Grating inquiries, please call 1-877-984-7788 or email sales@Nationalgrating.com or Request a Quote.

we ship fiberglass grating walkways to every region of the USA!

This product meets required frp specs Fast Delivery via our Superior Logistics Network

National Grating provides square mesh fiberglass grating to ALL USA States including California, Oregon, Florida, New York, Illinois, Pennsylvania, Ohio, Georgia, Michigan, Virginia, Massachusetts, Arizona, Washington, North Carolina, Nevada, Texas, New Mexico, Indiana, Tennessee, Colorado, 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 square mesh fiberglass grating at the best price.

Square Mesh Fiberglass Grating has superior radio frequency transparency to steel. Use square mesh fiberglass from National Grating to protect your wifi network and cellular telephone signals.

This product meets required frp specs Square Mesh 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. Square Mesh Fiberglass is an essential part of FRP building structures that are “electronically transparent” and do not interfere with radio frequency transmissions.