This section outlines the process for selecting ceiling grid systems. It’s critical to ensure that the grid face width corresponds with the tile edge details, the module size correlates with the tile dimensions, and the grid type aligns with the space type. Perfection across these parameters guarantees correct tile installation and optimal ceiling functionality. On the contrary, tiles may be improperly seated or the grid may rust. Donn manufactures exposed grids in standard white finishes as well as proprietary corrosion resistant grids, which allows you to appropriately configure the grid to the job. This guide will explain how to do so.
Aligning the face width with the edge of the tile.
The horizontal face width of the metal grid should sit flush with the tile edge detail as follows:
A square edge or tegular tile requires a grid size of 24mm, while a microlook tile requires a grid size of 15mm. Therefore, the tile and the grid must be chosen concurrently; it is not possible to use a microlook tile on a 24mm grid and expect it to seat properly.
Match the module to the tile size
The grid module or size of each opening must align with the tile. 595mm tile sits in a 600mm module (The grid is set up with 600mm intervals, and because the tile is 5mm smaller, it will drop in.) A 1195mm x 595mm tile sits in a 1200 x 600mm module. With Donn’s cross tees at 1200mm and 600mm, you are able to do both layouts. Always set the grid to the tile you intend to use.
Match the grid type to the environment
This is where Donn’s range is critical. For most commercial interiors, a standard white exposed grid. The three aspects are correct. It is clean, durable and cost-effective. However, in humid or corrosive environments a standard grid can rust and stain the tiles and weaken the framework. In those instances, a corrosion-resistant grid. Donn makes both, which means the grid can be designed for the specific conditions rather than being
When to specify a corrosion-resistant grid
Think of a Donn system that is corrosion resistant which is necessary when the ceiling is to be in exposed conditions where moisture, like wet or humid processing areas, or other similar environments, is present. In these conditions, especially with a moisture-resistant tile (like a stone wool tile) using a standard grid is a false economy because the grid will corrode. If you are unsure whether your environment requires it, the RCT team can help you with the correct Donn specification.
Putting it together
First, process the three matches in order: tile edge → face width (15mm or 24mm); tile size → module (1200 or 600); environment → grid type (corrosion resistant or standard). Then total the components. Ordering tiles and grids from the same supplier preserves the modular consistency and avoids the classic mistake of a tile that cannot be installed with the grid that was delivered onsite.
Frequently Asked Questions
What is the difference between a grid of 15mm and one of 24mm?
The numbers refer to the width of the visible face of the grid. 24mm grids are the industry average for square-edge and tegular tiles, while 15mm ones are for micro-look edge tiles to achieve a finer shadow gap. The tile edge must align with the grid face.
What size grid would I need for a 595 mm tile?
A 595mm tile fits into a 600mm module — the grid is set at 600mm centres and the tile is 5mm smaller to allow it to drop in. For square edge or tegular tiles, a 24mm face grid is required.
When do I need a corrosion-resistant grid?
Donn designs grids that are corrosion resistant for environments where a standard grid would corrode, stain tiles, and reduce the strength of the framework. The RCT team can assist you in selecting the correct specification.
Can I combine any tile with any grid?
The face width of the grid must match the tile edge detail (24mm for square/tegular and 15mm for micro-look), and the module must match the tile size. Tile and grid must always be combined.
Kindly match your tiles with the corresponding grid. You may visit the Donn range on our Donn grid category page, alongside our Suspended Ceiling Tiles range.
Unsure of which grid corresponds to your tiles or your surroundings? Call 01939 251 450– We will amend the grid based on the work, or request a quote for tile and grid together.
WhatsApp Scan to start a chat with us!