CORREX® FIRE RATED Protection Sheet Boards – 3mm Thick

This 3mm fire-rated Correx board is a fluted polypropylene protection sheet used across construction, fit-out and refurbishment sites where surface protection is required and fire safety compliance cannot be ignored. Correx is a registered trademark of Corplex, and the fire-rated version is specified on projects where standard Correx does not meet the building’s fire risk requirements. At 1.2m x 2.4m, each sheet covers a full standard board area and is available in black, grey, white and translucent to suit different site preferences or to match existing protection layouts.

Surface protection is one of those jobs that gets underestimated right up until someone drags a wheelbarrow across an expensive hardwood floor. Correx has been the go-to material for this work for years because it is lightweight, easy to cut, and resilient enough to take repeated foot traffic and general site abuse without breaking down. The 3mm fire-rated Correx board adds a layer of compliance that standard sheets cannot offer, making it the right choice for projects in commercial buildings, high-rise residential blocks, hotels, hospitals and any site where fire-rated materials are specified in the method statement or required by the principal contractor.

Where 3mm Fire-Rated Correx Board Gets Used

The fire-rated version of the 3mm Correx board is most commonly laid over finished flooring, hardwood, tiles, vinyl, and polished concrete during the tail end of a fit-out when trades are still moving through. It is also used on staircases where the floor finish has been completed before ironmongery and joinery are done, which is practically inevitable on most jobs. Doorways, lift lobbies and reception areas benefit from sheet protection that will not add to the fire load in a confined space.

The lightweight fluted construction means sheets can be carried in a roll or flat stack without needing a second pair of hands, and they can be cut on site with a knife and straight edge to fit around columns, doorframes or irregular shapes. The available colours are useful when different areas need to be visually distinguished, or when the main contractor specifies a particular colour for tracking and consistency across a large site.

Fire Rating and Compliance

The fire-rated classification on these Correx boards means the material has been tested to a recognised standard for reaction to fire, making it suitable for use in environments where non-rated materials would be prohibited or would fail a site audit. If a project specification calls for fire-rated temporary surface protection, this is the product to reach for. Standard polypropylene Correx does not carry this rating, so it is worth confirming which version you are ordering if fire compliance is a requirement rather than a preference.

Bulk pricing is available on larger quantities, which makes a difference when covering multiple floors on a commercial project. Contact us directly for volume rates if you are buying at scale.