Premium Interior Steel System
BF S20 Loft Slim
Ultra-Slim Steel · Designed Around Light
A premium interior steel door collection with 20 mm sightlines and precision-engineered profiles — swing, sliding, pivot, bi-fold, and fixed glass partitions, manufactured in Poland and custom fabricated to your opening.
- Sightline
- 20 mm
- Profile
- 20 × 42Cold-rolled steel
- Glazing
- 4–8 mmClear or decorative
- Finish
- Any RALPowder coated
Architectural Minimalism
Inspired by Loft Architecture.
BF S20 combines minimalist steel profiles with expansive glass panels to create refined interior spaces.
Ultra-Slim 20 mm Sightlines
Minimal visible steel creates larger glass openings and a lighter architectural appearance.
Precision Steel Construction
Manufactured from high-grade cold-rolled steel profiles using CNC cutting, drilling, bending, and welding.
Powder-Coated Finish
Durable architectural powder coating in standard, premium, and custom RAL finishes.
Custom Glass Options
Clear, textured, fluted, frosted, bronze, and reeded glass from 4–8 mm thick.
Flexible Design
Choose welded or applied glazing bars with fully custom grid layouts.
Interior Applications
Offices, wine rooms, studies, bedrooms, living rooms, pantries, and commercial interiors.
System Configurations
Versatile Interior Solutions.
BF S20 adapts to multiple installation types while maintaining its signature ultra-slim aesthetic.
Swing Doors
Classic hinged steel doors with optional sidelites and transoms.
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Sliding Doors
Space-saving interior system with wall or ceiling-mounted rails.
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Pivot Doors
Statement architectural entrances with concealed pivot hardware.
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Bi-Fold Doors
Flexible room dividers with multiple panel configurations.
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Fixed Glass Partitions
Elegant interior walls for offices, wine rooms, and studios.
Learn More →The Collection
Loft Slim Bar Layouts.
Every layout is available across swing, sliding, and pivot configurations — in any RAL finish, with welded or applied glazing bars.
Hardware
Handle Collections.
Select from a range of contemporary lever and pull handles available in various styles and finishes to complement your door design. Whether understated or bold, every handle is chosen to pair seamlessly with the BF S20 Loft Door System.
Also available Privacy thumbturns, keyed cylinders, magnetic latches, and flush pulls for sliding and pivot leaves — specified per opening alongside your chosen lever.
Glazing
Glass Collection.
From open, light-filled spaces to enhanced privacy, our glass collection offers a variety of clear, textured, and decorative options to complement any interior design.
Please note Additional glass types and custom finishes are available upon request. Availability may vary by project requirements.
Technical Specifications
Premium Manufacturing.
System Specification
| Visible sightline | 20 mm |
|---|---|
| Door leaf profile | 20 × 42 mm |
| Frame depth | 44 mm overall · 40 mm frame height |
| Frame material | Cold-rolled steel |
| Finish | Powder coated · standard, premium & custom RAL |
| Glass thickness | 4–8 mm |
| Glazing beads | Mechanical click-on aluminium |
| Glazing bars | Welded or applied · fully custom layouts |
| Hinge type | Welded |
| Interior use | Yes |
| Fire rated | No |
| Thermally broken | No — interior applications only |
Fabrication Limits
| Door leaf width | 550 – 1,100 mm |
|---|---|
| Door leaf height | 1,800 – 3,000 mm |
| Configurations | Swing, sliding, pivot, bi-fold, fixed |
| Panel build-up | Single leaf, double leaf, sidelites, transoms |
Every BF S20 is CNC-fabricated — profile cutting, drilling, laser cutting, precision bending, welding, grinding, glass processing, powder coating, and final assembly.
20 mm sightline · 20 + 4 + 20 mm frame stack · 44 mm overall depth, 40 mm frame height.
Slim cross bar applied to a single glass pane — bars can be welded into the leaf or surface-applied.
Pre-drilled frame anchored directly to the structural opening, with the welded hinge knuckle and glazing bead shown in section.
Glazing bead, leaf profile, and welded hinge shown in section against the frame.
Extruded top rail with integrated carriage channel, face-fixed to the wall above the opening.
Roller carriage, anchor fixing, and suspended leaf bracket within the rail cavity.
Projects
Installed Work.
A selection of completed BF S20 installations across residences and commercial interiors.
Installation
Engineered for Simplicity.
The steel frame includes pre-drilled mounting holes for faster installation. Once installed, color-matched cover caps conceal all visible fasteners for a clean finished appearance.
Production Process
Every BF S20 system is fabricated using CNC-controlled manufacturing for exceptional precision.
- CNC profile cutting
- CNC drilling
- Laser cutting
- Precision bending
- Welding
- Grinding
- Glass processing
- Powder coating
- Final assembly
Ideal Applications
Residential and Commercial.
Residential
Commercial
Design Options
Frequently Asked
Questions, Answered.
Is BF S20 thermally broken?
No. BF S20 is designed specifically for interior applications.
Can I customize the grid pattern?
Yes. Nearly unlimited bar layouts are available, in welded or applied configurations.
Can I choose decorative glass?
Yes. Multiple clear, textured, fluted, frosted, and privacy glass options are available from 4–8 mm.
Can I combine fixed panels with doors?
Absolutely. Fixed sidelites and transoms can be combined with swing, sliding, and pivot systems.
Get Started
Start your S20 project today.
Share your project details and our team will prepare a tailored recommendation, preliminary pricing, and production timeline.
- Custom fabricated to your dimensions
- Precision European steel profiles
- Shop drawings before fabrication
- Clear production timeline
