Folding door 4 panels

The TOSTEM 4-panel folding sliding door is an optimal solution for commercial projects and premium residences. The product combines smart engineering with high-quality hardware systems, bringing exceptional convenience and modern aesthetics to any space.

Superior safety for all family members

The TOSTEM 4-panel folding sliding door is equipped with a smart anti-pinch hand mechanism, minimizing the risk of finger impact during operation. This design is particularly suitable for families with young children, ensuring absolute safety during daily use.

Effective space optimization

Compared to traditional swing doors, the folding sliding door maximizes space savings thanks to its flexible folding mechanism. The door surface and sub-surface (flush) bottom frame profile support safe movement without causing trip hazards, while creating a spacious feel for living or working areas.

Smooth and stable operation

A flexible rotating hinge system and smart joints between door panels allow the door to move gently, smoothly, and stably. Users can fold or expand the panels without resistance, ensuring a quiet operating experience and long-lasting performance.

Convenient design and high aesthetics

Concealed hinges and sub-surface drainage grooves keep the door surface smooth, limiting dirt accumulation and making it easy to clean. The TOSTEM 4-panel folding sliding door delivers a modern, refined style while enhancing interior convenience.

Highlighted technical specifications

Door frame width reaches 72 mm. Bottom frame profile height: water-tight frame type 55 mm, sub-surface (flush) frame type 35 mm. Glass thickness ranges from 5 mm to 8 mm, ensuring effective load-bearing and sound insulation capacity.

High technical performance

The TOSTEM 4-panel folding sliding door achieves a wind pressure resistance of 850 Pa according to JIS S-1. Water tightness reaches JIS W-2: 180 Pa, air tightness reaches JIS A-4. Sound insulation capacity reaches 25 dB according to JIS, meeting strict technical standards for both high-rise buildings and modern residences.