FRP Manhole Cover Vs Cast Iron Manhole Cover - A Comprehensive Guide 

 Are you here to know about the best load bearing manhole cover? Worry no more, we will guide you through FRP manhole cover vs cast iron manhole cover in this blog. Read with us to know more.

01 Nov, 2023
FRP Manhole Cover Vs Cast Iron Manhole Cover - A Comprehensive Guide  - blog poster

A Detailed Study Of FRP Manhole Cover Vs Cast Iron Manhole Cover

Manhole covers have changed the way, how urban spaces look with their essential benefits throughout. It not only helps in providing easy access to highway drains and sewer passages. But, also reduces the risk of unfortunate accidents.

Are you searching for a high resistant manhole cover?

Then, let us tell you that, choosing the right manhole cover among many options is a crucial decision.

Do you know why?

Well, it is because not choosing the right one can affect the durability, safety, and installation of the manhole cover.

We at Om Concrete Products are one of the top manhole cover manufacturer or drain cover manufacturer in India. That you can completely rely on when it comes to sturdy, hard, and long resilience of manhole covers. We are here to tell you all about the uniqueness of two of the best manhole covers for urban spacing in this blog.

So, what are you waiting for?

Let's begin understanding all about FRP manhole Cover vs Cast Iron Manhole Cover.

Exploring FRP Manhole Covers: Fiberglass Reinforced Plastic

Are you looking for attractive manhole covers for your infrastructural sewer passage? 

Then, there can be nothing that can beat the plethora of benefits that FRP covers in Kolkata provides. FRP manhole covers (Fiberglass Reinforced Plastic) are a type of composite manhole cover that is made of polyesters and fiber glass.

This lightweight manhole cover is exceptional when it comes to durability, strength, and corrosion resistance. You must ditch the traditional manhole covers. And go with the best yet trendy fiber reinforced plastic cover to transform your structural access points. 

So, are you ready to explore the advantages of installing FRP manhole covers before making the final choice between FRP manhole cover vs cast iron manhole cover?

Photo of a FRP manhole cover

Recommended: A Complete Guide: How To Choose The Right Manhole Drain Cover

FRP Manhole Covers: Ultimate Advantages

FRP is a popular choice in the urban localities. Especially, for pedestrian walk passages and open spaces like gardens and parks. It is made from a lightweight and durable material that makes it the perfect choice to protect underground drainage and sewer passages.

Read with us to know what benefits and advantages you can get by investing in a FRP manhole cover.

1) FRP is Lightweight

FRP is the best choice for you if you are looking for sewer coverage solutions that are light in weight. Thus, giving you the benefits like ease of installation and handling of the material. 

If compared to cast iron manholes, GRP manholes, and ductile iron manholes, FRP manholes offer lightweight while it can withstand heavy load capacity.

2) FRP Is Resistant To Corrosion 

If you are looking for a rust-resistant manhole cover. Then, again nothing can touch the valor of what FRP manhole cover provides.

Don't know why?

It is made from a combination of non-metallic materials, and FRP manhole covers have corrosion-resistant properties. That can make them look new while being strong and sturdy for the longest period.

3) Slip-Resistant And Customization

Are you searching for something that does not exhibit the traditional round shape of what manhole covers look like? FRP manhole covers can be customized into different sizes and shapes like rectangular, square, and oval.

Thus, giving you the freedom to upgrade your infrastructural visual appeal. Not only that, FRP covers have anti-slip benefits. That ensures safety from severe accidents of pedestrians and vehicles.

Understanding Cast Iron Manhole Covers: Ensuring High Resistant Made Of Cast Iron

Cast iron manhole covers are made from the composition of magnesium mixed with cast iron for underground utilities. To add more to its unique features, it provides strength, ductility, and wear and tear properties. That makes it the top choice for carriageways, parking areas, highways, and industrial zones.

So, if you are thinking of upgrading your urban infrastructure for heavy foot load of vehicles and people. Then, a cast iron manhole cover is the best option to go with between FRP manhole cover vs cast iron manhole cover.

Image of a cast iron manhole cover

Read Also: Exploring The Different Types Of Manhole Covers: A Complete Guide

Top Advantages Of Cast Iron Manhole Covers

Manhole covers made from materials like cast iron are prone to a high risk of theft as it has good scrap resale value. But, if you are looking for a concrete manhole material then cast iron covers offer numerous benefits. Here, we have mentioned a few of the top advantages of installing a cast iron manhole cover for you to check out.

1) Durability Of Cast Iron

Cast iron manhole covers are exceptional when it comes to high strength and durability. Made from ductile iron, it has the capacity to bear the heaviest weight loads. Thus, making it ideal for areas like roadways, highways, and high-traffic zones.

Not only that, it can withstand the toughest weather conditions with its anti-rust properties along with vehicular safety.

2) Cast Iron Requires Low Maintenance

If you are looking for a long-term solution before buying a manhole cover. Then, cast iron manhole covers require almost zero maintenance due to their durability and anti-corrosion benefits. 

So, saving a lot of money that you might have needed in the maintenance process of your manhole cover.

3) Cast Iron Is Resistant To Temperature

This recyclable material is not only resistant to deformation but can also function excellently under high temperatures. Thus, making it the best choice for you under extreme climatic conditions.

FRP manhole cover vs cast iron manhole cover: Which One Is The Best?

Now that you know all about the benefits of FRP manhole cover vs cast iron manhole cover. It is time for you to come to a concluding decision about what you should be buying for your urban infrastructure. But, before that, we would like to highlight a few points about which of these two manhole covers should be your ideal choice.

Are you waiting to know the difference between these two manhole materials? Read with us carefully before you make a final decision.

  • FRP manhole covers are lighter in weight as compared to cast iron manhole covers. This gives you easement in the installation, transportation, and maintenance of the manhole cover.
  • FRP covers do not have good scrap value as compared to cast iron manhole covers. Thus, giving you relief from thieves stealing the manhole cover at night.
  • FRP covers have natural corrosion-resistant properties while cast iron covers may need to undergo treatments like coating to have anti-corrosion properties.
  • FRP covers are easy to install due to their lightweight whereas cast iron covers are heavy. That can make it tougher for you to easily install and maintain it.
  • FRP manhole covers provide a long-term cost-effective solution. They are expensive if compared to cast iron but their low maintenance cost and anti-corrosion properties make them ideal for saving your budget for the coming times.

Read More: Manhole Cover Uses And Applications By Om Concrete Products


Your choice between an FRP manhole cover vs cast iron manhole cover should depend on specific requirements and applications. You must consider your budget, need, and long-term benefits before getting the right kind of manhole cover solution for yourself.

You can also contact us if you need to know more about the best manhole covers in India.