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BF73Bi-Folding Door System

Folding Systems
BF73 bi-folding door system — five-panel living room installation
BF73 bi-folding door system — kitchen opening onto patio at sunset
BF73 bi-folding door system — living room open to lake view terrace
BF73 bi-folding door system — exterior patio with fire pit
BF73 bi-folding door system — wide living room opening to city view at dusk
BF73 bi-folding door system — living room opening onto skyline terrace
BF73 bi-folding door system — dining terrace with city skyline at sunset

The bi-folding panoramic door system is a modern solution for residential and commercial buildings. Its hinged panels stack neatly to one side on a bottom track, opening your entire wall to the outdoors.

BF73 opens both outward and inward, depending on your needs, and is available with a choice of "fully weathered" or "low-level" sills, complete with integrated locking solutions.

BF73 bi-folding door system — open configuration
BF73 bi-folding door — fully open configuration

Technical Specifications

Max. sash height3,000 mm
Max. sash depth1,200 mm
Infill unit thickness44 mm
Max. infill unit weight120 kg
Watertightness (EN 1027:2000, EN 12208:1999)Class 9A (600 Pa)
Air permeability (EN 1026:2000, EN 12207:1999)Class 4 (600 Pa)
Wind load resistance (EN 12211:2000, EN 12210:1999)Class A3 (1200 Pa)
Thermal insulation, Uf (EN ISO 12567-1:2011)≥ 1.4 W/(m²·K)
Acoustic performance (EN ISO 10140-2/4:2011)43 dB
Impact resistance (EN 13049:2003)Class 5
Burglar resistancePAS 24:2016 (class DK)
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