FRP Grating in Stock

Bulk Order Fiberglass Grating!

As a leading supplier of FRP Grating in North America, we offer significant volume discounts on bulk orders.

FRP Grating Truckload

FRP Grating by the Truckload!

We have a HUGE selection of Fiberglass Grating ready to ship and are constantly increasing our stock levels.

We can supply large quantities of Molded FRP Grating in dark gray or yellow right away. Call for availability on green, orange, light gray, or custom colors as well.

With over 20 years of wholesale FRP experience, our trained experts are ready and available to assist you right now.

Call us for a competitive quote on your next large Fiberglass Grating inquiry by the truckload or the container load at 1.844.599.0260.

Gray HLC Grating

HLC FRP Grating

Heavy Duty HLC Fiberglass Grating

HLC (High Load Capacity) FRP Grating is specifically designed for trenches with heavy vehicle traffic and rolling loads such as forklifts or large trucks. HLC grating is extremely durable and can withstand corrosive environments where steel will rust.

Yellow HLC Grating

Heavy Duty Yellow HLC Fiberglass Grating

Advantages of HLC Grating:

    • High Strength to Weight Ratio
    • Corrosion Resistant
    • Long Lasting
    • Low Maintenance
    • Fire Retardant
    • Non-conductive
  • Easy to install

HLC Grating 1.5” or 2” Deep

1.5” deep HLC grating can withstand 5,000-pound concentrated loads with very little deflection. 2” deep HLC grating is even stronger and can span wider trenches. It has a 1” by 2” mesh pattern with 48% open area.

FRP Versus Steel

With the growing popularity of Fiberglass grating, our customers are discovering more and more applications for FRP Grating where they have previously used steel.

Steel is flexible under heavy pressure; It doesn’t like to bend back to its original shape once it has been transformed. FRP is highly elastic but engineered in such a way to where it doesn’t permanently deform. FRP grating creates less vibration than steel, so it doesn’t emit an annoying clatter when driven over.

Gray HLC Grating

Heavy Duty Gray HLC Fiberglass Grating

HLC Grating Availability

We stock our HLC Grating in 4’ x 6’ panels. We can either cut the grating to size to fit your trench or you can cut the grating yourself with a skill saw or table saw using a diamond tip blade.

Call 1-877-599-0260 for more information. Our sales and service team are ready to help.

FRP Fiberglass Grating

Fiberglass Grating California

Fiberglass Grating California

California FRP Grating Supply

California FRP Grating Supply

At National Grating, we provide Fiberglass grating and FRP Flooring throughout northern and southern California including Greater Los Angeles.

Our competitive prices and fast delivery have made us the first choice in FRP (Fiberglass Reinforced Products) from Redding to San Diego, and San Francisco to Lake Havasu.

We specialize is fiberglass bar grating, fiberglass decking, fiberglass tubing, pultruded fiberglass, FRP angle, catwalk grating, and FRP structural shapes.

Call us with your FRP Project

We can help select the right fiberglass grating at the best possible price. Out in-house sales and service staff have years or experience helping contractors, builders, warehouse managers, and many others.

We can supply all type of grating from heavy-duty HLC (High-load Capacity) Grating to swimming pool grating and everything in-between.

Call 1.844.599.0260 for a competitive quote on Fiberglass Grating

Fiberglass Grating

Pultruded FRP Grating

FRP Grating at Fallbrook Energy Storage north of San Diego, CA

Everyday, more and more people are discovering the benefits of FRP for all kinds of projects. FRP is often the best choice for wet or corrosive environments where steel has rusted out. You’ll find  lots of FRP in waste-water treatment plants, pump stations, mine-sites, cooling towers, cellular antenna shrouds, and waterparks to name a few.

Lighter, Stronger

Pound for pound, FRP is stronger than steel. It won’t rust either so fiberglass grating is the preferred choice where weight is an issue such as marine docks, or entertainment stages. It’s also non-conductive, so it is used extensively in hydro-electric applications.

Molded and Pultruded Grating

We provide both FRP molded grating and FRP pultruded grating. While molded grating is the most cost-effective option, pultruded grating is stronger and better suited for longer spans. Molded grating is made from a square grid pattern using a 3/4″, 1.5″ or 2″ square mesh. It’s also bi-directional so  it’s equally strong in both directions. Pultruded grating is made from a series of parallel bars and can span up to 5 feet depending on the load.

Call 1.844.599.0260 for a competitive quote on Fiberglass Grating

Fiberglass Grating

We can ship to all of these locations in California:

Los Angeles, San Diego, San Jose, San Francisco, Fresno, Sacramento, Long Beach, Oakland, Bakersfield, Anaheim, Stockton, Riverside, Santa Ana, Irvine, Chula Vista, Fremont, Santa Clarita, San Bernardino, Modesto, Moreno Valley, Fontana, Oxnard, Huntington Beach, Glendale, Santa Rosa, Elk Grove, Ontario, Rancho Cucamonga, Oceanside, Lancaster, Garden Grove, Palmdale, Salinas, Hayward, Corona, Sunnyvale, Pomona, Escondido, Roseville, Torrance, Fullerton, Visalia, Orange, Pasadena, Victorville, Santa Clara, Thousand Oaks, Simi Valley, Vallejo, Concord, Berkeley, Clovis, Fairfield, Richmond, Antioch, Carlsbad, Downey, Costa Mesa, Murrieta, San Buenaventura (Ventura), Temecula, Santa Maria, West Covina, El Monte, Inglewood, Burbank, El Cajon, San Mateo, and Jurupa Valley.

Be sure to ask for a freight estimate with your FRP Quote!

California Fiberglass Grating

FRP Fiberglass Grating


Fiberglass Dock Grating

Fiberglass Dock Grating

Fiberglass Dock Grating

You’ve done it. You purchased the house on the lake that you and your wife have been dreaming about for years. The kitchen is brand new and the dinner parties you’ll throw here are going to be EPIC. What is better than an afternoon in front of the barbeque with your closest friends and family? Nothing, that’s what. Unless? The only thing missing to make your summers truly memorable would be the boat you’ve been thinking about for so long.

Decking Material
You’ve been looking at sales but before you make your purchase, you’re going to need to resolve the only issue in your otherwise perfect home – There’s no dock. You think, “I’m crafty, I’ll build one myself”. Where to start? Here’s where you start evaluating your options for decking material:

You think of wood immediately.
People have been building wooden docks for years, so why not? They’re aesthetically pleasing, sturdy and they smell nice when they heat up in the sun. But then you remember that time you and your childhood friend spent your summer jumping off a nearby dock into the water below and how the hot wood burnt your feet and gave you splinters. Not ideal. Wood also rots, cracks, warps, and can be affected by insects. Not to mention you’d be out there on your hands and knees re-staining your dock every other year. Ugh, no.

Fiberglass Dock Grating

Molded Fiberglass Grating Dock

What else, then? Steel?
The first thing that pops into your mind are the steel slides at playgrounds and how as adults you and your friends have all agreed those should no longer be allowed. The traumatic experience of sliding down one of those on a summer day wearing shorts is funny now, but something to be avoided wherever possible. If you never encounter hot steel again in your life, it would still be too soon.

So, what now?
Where are you going to find a product that is durable, weather resistant, and won’t rust, warp, or crack? Then it comes to you – FIBERGLASS. It meets all of your criteria and best of all, you can build it and leave it for 30 years. No upkeep, no staining, no making sure it’s still safe to use year after year. It’s done. You pat yourself on the back for your genius and head to National Grating’s website to make your purchase. But wait – there are different types of fiberglass grating? Which one would be the best and safest way to meet your needs?

Call 1.844.599.0260 for more information.

Fiberglass Grating

Don’t worry, we got you.
There are two types of fiberglass grating: Pultruded and Molded. Pultruded grating is made from a series of parallel bars, typically having a “T” or “I” shaped profile. The closer the bearing bars are together, the stronger the grating. The bars are kept parallel with cross rods 6 inches apart that run at 90 degrees through the bearing bars. If you purchase pultruded grating with the panels closer together, this would be both aesthetically pleasing and easy on bare feet, as there wouldn’t be large cracks on which to trip or hurt oneself on. Here is a visual example of what your dock might look like if you opted to go with pultruded grating.

Molded Fiberglass Dock Grating
Molded grating, on the other hand, generally has a square mesh pattern. The squares in the mesh pattern are typically one and one-half inches on center. National Grating sells both gritted or concave non-slip surface, both of which would work well on a dock.
However, as the squares on molded grating tend to be quite large, this may not be ideal for a dock where one plans to walk barefoot. In this case, we would recommend mini-mesh dock grating. Mini-mesh grating bearing bars are spaces on ¾ centers, creating ½ x ½ square openings. Here is a comparison of standard molded grating vs mini-mesh grating:

Mini-Mesh Dock Grating

Mini-Mesh Dock Grating

Molded Grating

Molded FRP Grating has a square mesh pattern made up of ¼’ wide fiberglass bars that are equally strong in both directions.

Mini-Mesh Grating
Our most popular molded grating for docks is mini-mesh grating with a ¾” mesh pattern and ½” open squares. The abundant surface area and fine-grit surface create an extremely comfortable surface to walk on in bare feet or flip-flops. Available in charcoal gray 4’ x 8’ panels 1” or 1.5” deep.

1.5 Inch Square Mesh
Our 1.5” square mesh molded grating is lighter and more cost-effective than mini-mesh. It’s just as strong as mini-mesh, but it has much larger 1-1/4” open squares which allow more light and water to pass through. It has a coarse grit that is not suitable for bare feet, but the grating can be turned upside down with the smooth side on top and it’s just as strong. The additional traction from the coarse grit and the larger open squares make the 1.5” mesh very suitable for steep ramps. Available in 3’ x 10, 4’ x 8’ and 4’ x 12’ panels 1” or 1.5” deep in charcoal grey or yellow. 4’ x 12’ x 2” panels are also available.

Molded grating can be fastened using stainless steel M-Clips that drop down inside the open squares.

Mini-mesh Clips 1.5” Square Mesh Clips

Pultruded Fiberglass Grating

Pultruded FRP Grating consists of series of parallel I-shaped or T-shaped bearing bars held together with cross-rods every 6 inches. The bearing bars are wider and stronger than molded grating so it can span longer distances. The bearing bars are installed perpendicular to the underlying supports.

Pultruded grating can be fastened using stainless steel Insert Clips that slide between the bearing bars

I-4000 Pultruded Grating
I-4000 is our strongest dock grating and can span up to 4 feet between supports. The 5/8” wide I-shaped bearing bars are spaced 3/8” apart and have a bare-foot friendly gritted surface. We stock I-4000 1” deep Pultruded FRP Grating in light gray 4’ x 12’ x 1” and 5’ x 12’ x 1” panels with the bearing bars running in the 12’ direction.

T-1800 Pultruded Grating
T-1800 offers the most surface area of any FRP profile. It is widely uses for stairs and decks in waterparks as well as trench covers around public swimming pools. We stock T-1800 1” deep Pultruded FRP Grating in light gray 4’ x 12’ x 1” and 5’ x 12’ x 1” panels with a bare-foot friendly gritted surface. The 1-5/8” wide T-shaped bearing bars are spaced 3/8” apart and run in the 12’ direction. Also available in white and yellow.


All of our FRP grating can be trimmed to size with any saw using a diamond tip blade.
All of our FRP Dock Grating is ADA compliment except for the 1.5” square mesh.


Regardless of which form of grating you use, rest assured that either product will be durable, corrosion resistant, and lightweight. At the end of the day, it boils down to personal taste and preference regarding the final look. Now that you are well-informed, you can start on the fun part and get to work – that dock isn’t going to build itself!

Mini-Mesh Dock Grating

Fiberglass Mini-Mesh Dock Grating

Fiberglass Mini-Mesh Dock Grating

FRP grating (Fiberglass Reinforced Product) is fast becoming the preferred material choice for marine piers, docks and ramps. Fiberglass Mini-Mesh grating provides a strong, waterproof decking surface that will last for years and years.

  • Strong
  • Long-lasting
  • Lightweight
  • Easy to Install
  • Easy to Maintain

Call 1.844.599.0260 for a quote on Mini-Mesh Grating

Fiberglass Grating

Extremely Durable
Salt water has no effect on FRP grating and a built-in UV inhibitor protects the grating from sunlight.
Unlike wooden docks, Mini-Mesh grating will not chip, crack or splinter in lakes and oceans. Whether it’s hot, cold, or dry, your FRP dock will stand up to whatever Mother Nature brings.

Mini-Mesh Dock Grating

Mini-Mesh Dock Grating

Comfortable Walking Surface
The top surface of Mini-Mesh grating has a finely gritted, non-slip surface which provides excellent traction without being too coarse. Mini-Mesh fiberglass grating has a ¾” grid pattern with ½” open squares. This results in 44% open area which allows light and water to pass through and provides a very comfortable decking surface to walk on in bare feet, flip-flops, or anything else you’re wearing.

Our Mini-Mesh grating is available in 1” deep or 1.5” deep panels. 1″ deep panels are strong enough to support foot traffic over a 2-foot span. Order the 1.5″ deep panels for heavier loads or longer spans up to 3 feet.
We typically stock dark gray 4’ x 8’ panels in both thicknesses and can ship within 2 business days. Custom panel sizes and colors are also available. Call for estimated lead times.


Mini-Mesh Decking Fasteners

Mini-Mesh Decking Fasteners







Mini-Mesh can be fastened with S.S. M-clips
or S.S. Beveled washers

Ready-made Ladders

Reliable, ready-made FRP ladders to suit your project. In stock and available now.

Cad Blocks for FRP Grating and Structures - compatible with AutoCad

CAD Blocks for FRP Grating and Structures

When designing structures that use FRP grating and shapes, you can create accurate and complete CAD drawings more quickly by using our standard CAD blocks.

Saving Time With Better Results

Use these FRP CAD blocks for repeatable and accurate geometries that save you time and represent fiberglass grating components precisely in your plans.

Represent FRP Structures Accurately

Our collection of CAD blocks include the most frequently used dimensions and patterns of fiberglass grating, attachment systems and fasteners. Use the complete set of blocks together for best results.

Cleaner and Leaner CAD Files

Proper use of these blocks will keep your design file size optimized. Use the pre-designed CAD block for each dimensional value of grating and structural components rather than having to create and modify your own.

Save Time in the Field

Using standardized CAD blocks will promote consistency in project drawings, and prevent non-standard use or vague dimensions from becoming embedded in your plans. Avoid the unhappy moments on the job site when it turns out that one component of the build has not been accurately documented.

Proper use of blocks also mean that you can track the number of pieces required with more certainty.

FRP Grating and Structures Blocks

We have these standard blocks available:

Molded FRP Grating 1″ to 2″
Sheet sizes 3’x10′, 4’x8′, 4’x12′,3’x20′,4’x20′

Pultruded FRP Grating 1″ to 1.5″
Sheet sizes 3’x10′, 4’x8′, 4’x12′,3’x20′,4’x20′

FRP Panels
Sheet sizes 3’x10′, 4’x8′, 4’x12′,3’x20′,4’x20′

FRP Clips and Fasteners

FRP I-Beam
Standard shapes

FRP Angle
Standard shapes

100% Compatibility

When it comes time to put your plans into action, you can be assured that the FRP grating products that are stocked in National Grating distribution centers across the USA and Canada will match up exactly with your design.

Request the Standard FRP Grating CAD Blocks Now Available From National Grating

We are happy to share our standard set of FRP Grating CAD blocks with you, at no charge. Simply enter your contact information below and we will send them to you with no obligation.