Specifying Donn Grid on Commercial Projects, Including Corrosion-Resistant Systems

When specifying a Donn grid on a commercial project, you choose the appropriate face width and module for the tiles, decide between a standard white grid or a corrosion resistant option for the given environment, make component quantity calculations and manage stock and pricing in relation to the project timeline. Donn’s options, including standard exposed grid and specialty corrosion resistant systems, allow a specifier to align the framework with the building. This guide is designed to help you specify and order it neatly at a contract scale. 

Define the grid as a system along with the tile. 

Grid and tile are a singular system, so please specify together. Confirm: 

• Face width– Tiles with square edges or Tegular ones are at 24mm; micro-look tiles are at 15mm. 

• Module— 595mm fliser er 600 x 600mm, og 1195mm x 595mm fliser er 600 x 1200mm. 

• Components– Donn 3600 Main Tees, Cross Tees 1200mm and 600mm, and Wall Angle 3000mm. 

• Finishstandard white for most interiors; please advise if a specific finish is needed. 

Stipulating tile and grid as a coordinated system prevents the expensive job site issue of incompatible components arriving separately. 

Standard vs corrosion-resistant 

The main specification decision is environment. In most commercial interiors, such as offices, retail and education, astandard white Donn exposed grid is the correct, cost-effective choice. For humid or corrosive environments, specify a corrosion-resistant Donn system, as a regular grid will rust with time leading to tile staining and framework deterioration. Donn manufactures both, therefore, match the grid to the situation: 

• Standard white grid — general commercial interiors in normal conditions. 

• Corrosion-resistant grid…enduringly humid or hostile conditions where an ordinary grid would rust. 

If you indicate a moisture-tolerant tile for a specific purpose within a particular area, the grid should align with that purpose — a corrosion resistant grid rounds off the system. Combining a moisture-tolerant tile with a grid that rusts is economically unwise. 

Calculate component quantities 

Remove the quantities from the layout regarding the main tees for the runs, mix of 1200mm and 600mm cross tees for the module pattern, and wall angle for the perimeter (including columns and bulkheads), along with a5–10% waste marginUtilize the appropriate box quantities — main tees 20 per box, cross tees 60 per box, wall angle 40 per box — so the order rounds logically. For a contract, an exact take-off eliminates both expensive over ordering and programme-stalling under ordering. 

Secure stock and pricing 

The grid components from Donn are stored at RCT and pricing is available on application for contracts. For a current project: 

• Request a bulk quoteThus, the complete grid and corresponding tiles are evaluated collectively against the program. 

• Confirm stockI cannot provide a delivery date for the entire order as an absent cross tee is holding up the ceiling. 

• Use the price guaranteeRCT will beat any valid lower price concerning tendered work. 

• Stage deliveryTo cite against the construction program if storage is limited. 

Plan for handover and maintenance 

Provide the client with documentation regarding the grid that includes components, face width, module, and standard or corrosion-resistant options, along with corresponding tile information and a small spare stock. In detail, an organized system will simplify future tile replacements or repairs to the grid, especially in challenging situations where the need for a corrosion-resistant grid is warranted. 

Frequently Asked Questions 

What is the process for specifying a ceiling grid on a commercial project? 

Specify the system with the title: confirm the face width (24mm or 15mm) to align with the tile edge, module to align with the tile size, component specification, and indication of the environment for standard or corrosion-resistant grid requirement. 

When should I specify a corrosion-resistant grid? 

In environments that are corrosive or consistently humid, a standard grid would rust, stain the tiles, and weaken the structure. Donn produces corrosion-resistant systems for these exact conditions. 

What are the Donn grid box quantities? 

Donn 3600 Main Tees are in boxes of 20, 600mm and 1200mm Cross Tees are in boxes of 60, and 3000mm Wall Angle are in boxes of 40. Use these to round your order appropriately. 

Can RCT supply Donn grid and tiles taking into consideration contract scale? 

Yes. RCT stocks Donn grid components and matching tiles. Pricing is upon application for contract quantities with a price guarantee. Please request a bulk quote to price the complete system and confirm stock against your programme. 

Specify the full system — refer to the Donn grid range on ourDonn grid category page alongside our Suspended Ceiling Tiles. 

For a live project grid specification, should I go for standard or corrosion-resistant?Request a bulk quote or call 01939 251 450— we will align the grid with the environment, perform the take-off, and price the complete system.