ConceptSystem 77

Optimised security and comfort for doors and windows

ConceptSystem 77

ConceptSystem 77 is a versatile, high-performance aluminium opening system that unifies door and window applications in one product family. Broad opening and design possibilities combine high thermal insulation with advanced security in a balanced price-performance solution. Functional, hidden-vent and panel-door variants adapt to architectural needs from homes to commercial buildings.

Door and Window Versatility — Multiple opening types, functional design, hidden vents and panel doors adapt to varied projects.
Advanced Security — Burglar-, fire- and bullet-resistant variants provide broad solutions for demanding buildings.
High Insulation and Comfort — A Uf value of 1.8 W/m²K is supported by strong weather and acoustic performance.
Balanced Value — Broad functions and design choices combine reliable quality with a competitive system concept.

Product Options

Glass Corner

Glass-to-glass connection without profiles obstructing the view.

Concealed Drainage

No more plastic caps, enjoy clean and elegant lines.

Concealed Hinges

Details define the design, and concealed hinges provide the finishing touch.

Insect Screen

Enjoy cool summer evenings without disturbing your sleep.

Bullet-Resistant

Security can be just as beautiful.

Motorized

Convenient operation, even from a distance.

Low Threshold

Easy access, cleaner design.

Zero Threshold

Unlimited access with a seamless floor finish.

Panic Exit

Proven and tested for your peace of mind.

Access Control

Makes your home smart and connected.

Soft Closing

Combines comfort with safety.

Decorative Cover Options

Choose the look that best suits your project.

CS 77 offers burglar-, fire- and bullet-resistant security variants alongside standard and high-insulation solutions. Doors can include low or zero thresholds, access control and panic exit, while windows support hidden vents, glass corners, insect screens and motorised operation.

Technical Specifications

Performance

Insulation, Comfort and Security

Thermal Insulation (Uf): 1.8 W/m²K
Air Tightness: Class 4 (600 Pa)
Water Tightness: Class E900 (900 Pa)
Wind Load Resistance: Class C5 (2000 Pa)
Acoustic Performance: 42 (-2; -4) dB
Burglar Resistance: PAS 24 / RC2 / RC3
Fire Resistance: EI₁ 30 / EI₂ 30 / EI₂ 60 / EW 30
Bullet Resistance: FB4 / FSG / Kalashnikov

Technical

Door and Window Dimensions

Window Sash Height: 600–2800 mm
Window Sash Width: 450–1200 mm
Maximum Window Sash Weight: 170 kg
Maximum Door Height: 3000 mm
Door Leaf Width: 500–1400 mm
Frame Depth: 68 mm
Window Sash Depth: 77 mm
Frame Glass Thickness: 4–52 mm
Sash Glass Thickness: 4–63 mm

Gallery

Browse Other Products

Continue Exploring

ConceptSystem 59Pa

A balanced and functional window solution for warm climates

ConceptSystem 59Pa is a non-insulated window system for warm climates, combining balanced value, reliable performance and minimal visible profiles.

Learn More

MasterLine 10

Uncompromising Performance for Passive Buildings

Discover Reynaers MasterLine 10 aluminium windows and doors for passive buildings, with superior insulation, large dimensions and sustainable design.

Learn More

MasterLine 8

High Performance for Windows and Doors

Discover Reynaers MasterLine 8 insulated aluminium windows and doors with high thermal performance, pivot options, large dimensions and advanced security.

Learn More