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Flush White Prefinished 1LOS Clear Glazed Fire Door

By Climadoor

From: £199.99

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Fully Finished

Fully Finished

High grade materials

High Grade Materials

10 Year Guarantee

10 Year Guarantee

Product Information

The Flush White Prefinished 1LOS Clear Glazed Fire Door offers contemporary simplicity and certified fire protection in one robust package. Designed for both commercial and light industrial environments, this crisp white model brings a clean, modern finish to corridors, offices, and utility spaces where safety can’t be compromised.

FSC Certification

A single clear glazed panel, positioned off-centre for a more architectural look, gives visibility between rooms without breaking the sleek lines of the flush surface. Framed by distinctive raised hockey-stick beading on both sides, the door with its 6mm pyro-glass panel is tested for up to 30 minutes of fire resistance, helping to protect escape routes and shared spaces.

Built with a durable particleboard core and clad in a Prime+ MDF face, this door is supplied prefinished in white, ready to hang straight from the packaging. It can also be top-coated in another colour, giving you full control over the final look. With 18mm hardwood lippings around all four edges, you’ll have up to 12mm of trimming flexibility in each direction for a reliable fit.

Supplied in a full selection of popular imperial and metric sizes, this fire door meets the needs of both refurbishment and new-build projects. Also available in matching internal flush and prefinished oak variants, this door is part of a wider collection designed to maintain consistency across multi-door installations. As always, FSC® (INT-COC-003944.500) mix certification confirms that all timber components come from responsibly managed forests.

Sizing

Offered in both imperial and metric sizes, this 44mm thick fire-rated door includes 18mm lippings on all sides, supporting up to 12mm of trimming per edge to accommodate tight openings or uneven frames.

Sustainability

Constructed with responsibly sourced materials and certified under the FSC® (INT-COC-003944.500) mix scheme, this fire door supports environmentally conscious building practices. Engineered components ensure strength while reducing waste.

Versatility Across Your Project

Whether you’re upgrading an office, fitting out a school, or specifying a light industrial unit, the 1LOS Flush range offers adaptable solutions. Matching oak and white internal doors, along with solid flush designs, allow you to maintain a consistent, professional look across all access points.

Technical Specification
Category
Brand
Glazing
Finish
Panels
1
Colour
Construction
Engineered Solid Core (Heavyweight)
Lipping
18mm
Part M Compliant
838mm & 926mm
Raised Moulding
Both Sides
Vision Panel
1369mm x 169mm
FSC® Certification
FSC® Mix
Average Weight
43.0kg
Fire Rating
FD30
Need any help or assistance?

Should you have any questions about any of our products or aftercare, please don't hesitate to contact us on the following details:

01246 380283


Questions about Flush White Prefinished 1LOS Clear Glazed Fire Door

What does “1LOS” mean in this fire door’s name?

 “1LOS” refers to the layout, 1 Light Offset, meaning the single glazed panel is positioned away from the centre, giving a contemporary, asymmetrical appearance.

Can I repaint this door if needed?

Yes. While supplied prefinished in white, the Prime+ MDF surface can be over-painted with a suitable topcoat to match your desired colour scheme.

Where is this type of fire door commonly used?

It’s ideal for commercial premises, shared residential entrances, corridors, and plant rooms, anywhere that needs certified fire protection with a modern flush design.

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Standard UK Door Sizes:

  • 1981 x 381/419 x 35mm (sidelights/side panels)
  • 1981 x 457/533 x 35mm (cupboard/wardrobe)
  • 1981 x 610/686/711 x 35mm (restricted spaces)
  • 1981 x 762 x 35mm (most common internal door size)
  • 2032 x 813 x 35mm (usually former external door size)
  • 1981 x 838 x 35mm (mobility/wheelchair access)

Metric Door Sizes (Popular in Europe/Scotland):

  • Height: 2040mm
  • Width: 426/526/626/726/826/926mm
  • Thickness: 40mm

Measurement Tips:

  • Measure door opening for height, width & thickness.
  • Allow 2-3mm gap around the door for proper operation.
  • Contact us for bespoke sizes.

Trimming Guidelines:

  • Engineered timber doors can be trimmed to fit; consult our guidelines or contact us for advice.

View Our Full Size Guide

If you are unsure about your sizing, please contact us for assistance. We also offer bespoke / made to measure doors.

Get in touch if you need help with anything or if you have any questions about our products.

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