Available External Door Configurations

We supply a complete range of steel external door setups to suit all types of properties and design preferences:

• Single Doors – Hinged, inward or outward opening.
• Double Doors – Equal or offset leaf sizes; hinged or pivot.
• French Doors – Classic double doors with glazing bars or minimal framing.
• Pivot Doors – Large format statement entrances with top/bottom rotation.
• Sliding Doors – Steel-framed sliding panels with double or triple glazing.
• Folding Doors (Bi-Fold) – Multi-panel steel folding systems.
• Fixed Sidelights & Overlights – Can be integrated into door assemblies.
• Frameless Look Options – Ultra-slim thresholds and concealed hinges for minimalist finishes.

Our team works closely with you to ensure the perfect system and configuration is selected, fabricated, and installed for your specific project requirements.

Forster Thermally Broken (Unico)

An affordable thermally broken steel door system ideal for modern performance demands.

• Made entirely from recyclable steel, with no synthetic insulation.
• Thermal insulation: Uw as low as 1.4 W/m²K.
• Burglar resistance up to RC3, bullet resistance up to FB4.
• Fire-rated up to EI30; sound insulation up to 47 dB.
• Suitable for doors up to 350 kg.
• Compatible with multipoint locking and a wide range of glazing options.

Forster Unico XS

A slimline thermally broken option combining sleek aesthetics with thermal efficiency.

• Extremely slim sightlines (~55 mm face width).
• Accepts double or triple glazing (up to ~60 mm).
• Supports large-format doors (up to 2,480 mm height).
• Uw values as low as 0.9 W/m²K.
• Ideal for minimalist and contemporary entrances.

Ottostumm Door Systems

W20 – Heritage (Non-Thermal)

A classic steel door system designed for listed buildings and restoration projects.

• Hot-rolled solid steel (3–5 mm thick).
• No thermal break.
• Heritage-style overlapping sightlines.
• Typically paired with single or slim double glazing.

W40 – Traditional Aesthetic with Modern Performance

• Hot-rolled steel for traditional styling.
• Supports double or triple glazed units.
• Classic FerroFinestra appearance.
• Suitable for new builds and period renovations.

W50 TB – Thermally Broken

• Thermally broken with polyamide insulation.
• Glazing up to 38 mm.
• Maintains ultra-slim sightlines.
• Excellent thermal performance (U-values near 1.0 W/m²K).

W75 TB – Premium System

• 75 mm profile depth.
• Triple-glazed up to 52 mm.
• Fibreglass-reinforced polyamide thermal break.
• High-end finishes including bronze, Cor-Ten, and brushed stainless.
• Compatible with advanced locking and large doors.