Comparing the Different Types of Trench Drain Grates

The Trench Grate Store offers several types of trench drains and grates. We stock grating materials like galvanized steel, stainless steel, cast iron, aluminum, and fiberglass.

In this blog post, let’s discuss the different types of trench drain grating available and their relative benefits. That way you can select the best material for your trench drain system. 

Types Of Trench Drain Grates

Galvanized Steel

Galvanized steel drain grates are perfect for industrial and residential usage. It is strong, durable, and resistant to corrosion, thanks to a zinc coating. Contact the Trench Grate Store today for custom options.

Stainless Steel

Stainless steel is another durable and strong material for trench drain grating. When hygiene is of the utmost importance, such as food service, clinics, and hospitals, stainless steel is ideal. 

The material is easy to maintain and clean and can withstand harsh chemicals and solutions. The corrosion-resistant alloy means it can be utilized in chemical plants and other similar settings.

Cast Iron

This material is most often used for parking lots, residential complexes, and roadways. For heavy load applications, Cast Iron tends to be less expensive than other materials. 

When a H20, or higher rating is required, Cast Iron is the best overall material.


Fiberglass is resistant to corrosion and has much better strength than simple plastic. You can enjoy numerous flow capacity options with this material, meanwhile selecting from decorative finishes or square grids for high-volume trenches. 

As they are built with polymers, several custom color options are available. Fiberglass trench grates are often used for pools, spas, catwalks, storage, courtyards, and worksites. 


Aluminum trench grates are popular for playgrounds, public squares, industrial applications, courtyards, and pools. This product is a great choice when your project calls for a Light Duty application.

It is unique in that it does not rust compared to ferrous metals such as iron or steel (but experiences white oxidation instead). This means that aluminum trench grates maintain their aesthetic appeal longer in areas with frequent water exposure.

Contact The Trench Grate Store for Trench Drain Grating Today

Our trench drain grate experts are standing by to help you select the best material for your needs. 

Based on the load rating, slip resistance, finish color, corrosion resistance, and other characteristics that you require, we can help. Reach out today to learn how to optimize your trench drain system with high-quality grating.