Clip Corrosion: What Load Ratings Really Mean for Open Mesh and Stair Treads
When it comes to constructing safe and durable walkways, platforms, or staircases, choosing the right materials is essential - but often overlooked are the components that hold it all together: the clips.
At DC Iron, we supply a wide range of open mesh flooring, stair treads, and floor clips, all of which play a critical role in overall safety and longevity. Whether you're a DIY enthusiast tackling your first steel stair build or an experienced contractor specifying materials for a major install, understanding load ratings and clip corrosion can make or break your project.
Why Load Ratings Matter
Load ratings indicate the maximum weight that a component can safely support. For open mesh flooring and stair treads, these ratings are not only about the steel's strength but also about how it's secured. A perfectly rated piece of mesh is only as reliable as the floor clip or bracket holding it in place.
At DC Iron, we supply open steel grating panels and prefabricated stair treads that meet industrial load-bearing standards. However, if these are mounted with low-quality or incorrectly specified clips, the whole structure could fail under pressure.
For example, our saddle clips, U-clips, and grating fixing clamps are designed specifically for securing open mesh flooring to supporting steelwork. Using the wrong clip type or size can result in movement, vibration, or even structural collapse, especially in high-traffic or commercial environments.

The Hidden Danger of Clip Corrosion
Steel grating and stair treads are often installed in outdoor or industrial settings, where exposure to moisture, chemicals, or salt air is unavoidable. This makes corrosion resistance a key concern, not just for the mesh, but for the clips themselves.
Clips made from untreated steel or substandard materials can begin to rust long before the grating shows signs of wear. As they corrode, they lose their grip strength, which significantly reduces the load capacity of the entire installation. This is why we recommend using galvanised or stainless steel flooring clips, especially in coastal areas or chemical-heavy environments.
At DC Iron, we stock a wide selection of galvanised mesh clips and bolted fixing systems, all tested for corrosion resistance and load durability. For high-endurance builds, we also offer stainless steel options, perfect for harsher environments.
Best Practices for Installation
Whether you're installing a small section of grating at home or overseeing a commercial stair project, here are a few things to keep in mind:
Match floor clip type to grating style: Saddle clips are ideal for open mesh flooring, while bolted fixings provide extra security for stair treads.
Use corrosion-resistant materials: Galvanised or stainless steel clips will last much longer and provide consistent strength over time.
Don’t over tighten: Excessive torque can weaken the clip or distort the mesh.
Inspect regularly: Especially in outdoor settings, inspect clips at least once a year for signs of rust or loosening.
Trusted by Professionals and DIYers Alike
Whether you’re just starting out or you’ve been in the trade for years, getting the details right, like choosing the correct clip and ensuring it’s rated for the job, is key to a successful project.
At DC Iron, we’re proud to supply the products that help you build it right the first time.
Explore our full range of stair treads, open mesh flooring, and fixings, or get in touch for expert advice tailored to your next project.