+91 96118 59019 / +91 96118 59029
crownupvcindia@gmail.com
Concertina Folding Systems

uPVC Bi-Fold Door

Accordion concertina sliding door layouts designed for sweeping villa entries. Folds effortlessly to offer 100% clear opening widths, merging your lounge with outdoor decks.

Up to 6m
Maximum Opening
Width Capacity
Crown Premium uPVC Bi-Fold Door

Real-World Preview

Panoramic Folding Concertina

Premium Deck
W: 3000 mm H: 2400 mm

Interactive CAD Blueprint

Hover or tap on different parts of the CAD diagram (Glass, Frame, Track, Rollers, Panels) to view structural blueprints and engineering details.

Specifications

Technical Blueprint Metrics

Profile Thickness 74mm wide multi-chambered base
Reinforcement 2.0mm galvanized steel box liners
Maximum Panel Height 2700 mm per operating sash
Maximum Panel Width 1000 mm per operating sash
Acoustic Block Cap Up to 40 dB sound reduction levels
Hardware System Custom heavy-duty roller hinges & multi-point locks
Water Permeability Class 7A weather resistance rating

Why Architect with Bi-Fold Doors?

The accordion concertina layout represents the zenith of premium spacious villa openings.

100% Unrestricted Opening

Sashes slide and gather concertina-style flat against wall edges. Expands living spaces seamlessly with absolute panorama.

Frictionless Quiet Gliding

Premium steel track rails and tandem nylon wheels support extreme panel weights with effortless, single-hand gliding action.

Shootbolt Locking Security

Interlinked key-locking shootbolt gear tracks secure top and bottom channels of every single leaf sash against force.

Inquire Today

Request a Premium Visual Estimate

Specify your visual dimensions and project parameters. Our dedicated glazing consultant will respond with custom pricing estimations within 24 business hours.

Instant Consultant Desk

Direct helpline: +91 96118 59019 / +91 96118 59029 (Available 9:00 AM - 6:00 PM IST)

Get Design Estimate