Fixing and buying guide

Deanta Windsor Black Prefinished FD30 Fire Door 1981mm x 686mm x 45mm

What you need to know before buying

This is a fire-rated internal door and must be installed correctly to maintain its FD30 certification. The door size is 1981mm height by 686mm width by 45mm thickness. It arrives prefinished in black, so no painting or staining is needed, which saves time on site. The door includes a 15mm trim allowance on each edge (30mm total), which means you can plane or trim up to 15mm from any edge if needed to fit your opening precisely. Check your door opening dimensions carefully before ordering, as fire doors cannot be cut or modified beyond the stated trim allowance without losing certification.

FD30 fire-rated core certified for 30 minutes fire protection
Prefinished black colour – no painting required
Trim allowance of 15mm per edge for fitting adjustments
Third-party certified by Q-Mark for compliance assurance
FSC-certified sustainable timber construction

Compatibility and installation requirements

This door is designed for internal use only and must be hung in a fire-rated frame or lining system to maintain its certification. You will need to source a compatible FD30-rated frame, hinges, and door furniture separately. Standard three-hinge hanging is typical for this door size. Ensure your opening is square and plumb before installation, as fire doors require precise fitting. The door should be installed with appropriate fire-rated seals and closers if required by building regulations for your application. Consult your local building control or the door manufacturer's installation instructions to confirm all requirements for your specific location.

Requires FD30-rated frame or lining system
Needs fire-rated hinges and door furniture
Must be installed square and plumb for certification
May require fire-rated seals or closers depending on regulations
Not suitable for external use

Preparation and pre-installation checks

Before installation, inspect the door for any damage in transit and check that your opening dimensions match the door size within the trim allowance. Measure the height, width, and depth of your opening carefully. The door is 45mm thick, so ensure your frame is suitable for this thickness. Store the door flat in a dry environment until installation to prevent warping. Do not expose the prefinished surface to moisture or direct sunlight for extended periods before hanging. If trimming is required, use the 15mm allowance per edge as your guide – do not exceed this limit. Ensure all hinges, frames, and hardware are fire-rated and compatible with FD30 certification.

Check opening dimensions match 1981mm x 686mm within trim allowance
Verify frame is suitable for 45mm door thickness
Store flat and dry until ready to install
Do not trim beyond 15mm per edge
Confirm all hardware is fire-rated before fitting

Warranty and support

This door is backed by a 10-year manufacturer's guarantee covering defects in materials and workmanship. The guarantee applies to properly installed doors that have been fitted in accordance with building regulations and the manufacturer's instructions. Keep your purchase receipt and installation documentation for warranty claims. If you have questions about installation, fire certification, or compliance with building regulations, contact the supplier or refer to Deanta's technical guidance.

10-year manufacturer's guarantee included
Covers defects in materials and workmanship
Guarantee valid for correctly installed doors only
Keep receipt and installation records for claims