Drainage Channels: Material Options for Angle Sided Grates

22 April 2016
 Categories: Construction & Contractors, Blog


The drainage channels in residential property are critical in preventing flooding and directing the stormwater to the right disposal area. If you have recently installed these features in your home, you should consider buying and installing some angle sided grates. These are designed and built to cover the open surface left by the drainage channels. Their purpose is to prevent the entry of debris like leaves and twigs into the drains; these materials can cause inconvenient blockages.

In addition, this type of cover eliminates the risk of people and pets falling into the channels and sustaining injury. There are different factors that you should consider before buying suitable angle-sided grates, but the most crucial is the material. It will affect the purchase price, performance factors and general durability. Here is a short description of the primary materials used in angle grate fabrication to help you during the selection of your product.

Mild Steel

Mild steel is a significant material in the manufacture of drainage grates for residential use. This type of material is a form of steel that contains low carbon content in its structure. Generally, carbon is added into iron during the alloying process to increase the hardness of steel. Therefore, mild steel has considerably low tensile strength compared to other types of steel. On the other hand, the material can comfortably handle usage as angle-sided grates in homes because the traffic is low. Moreover, mild steel is inexpensive and widely available in the market. If you choose such grates, ensure that the surfaces are treated through galvanisation to prevent rust formation.

Stainless Steel

This steel is a high strength metal that is formed by combining carbon steel with chromium. Angle-sided grates made from this material can withstand heavy weight and constant usage without deformation. You will get prolonged durability and minimal maintenance demands when you install stainless steel grates. Additionally, the chromium element in the metal makes the structure invulnerable to problems like rusting due to exposure to water. Unfortunately, this type of material is expensive and uneconomical for light usage in the home environment.


Aluminium angle sided grates are ideal alternative to stainless steel for your home if you are concerned about corrosion. This material is naturally resistant to deterioration after exposure to water. In addition, aluminium is a lightweight option, so it is easy to install and even remove when cleaning the drainage trenches. Regrettably, this property also makes the material unsuitable for high traffic. If the aluminium grate must withstand constant vehicle traffic, choose structural-grade alloys. 

For more information about your options for angle sided grates, contact a local contractor or supplier.