Sliding Door 3 panels on 3 tracks Grants

TOSTEM’s GRANTS 3-panel 3-track sliding door is a premium product line designed to provide an expansive, modern living solution. Featuring refined Japanese-engineered craftsmanship, it creates a seamless transition between interior spaces and external landscapes while delivering luxury, convenience, and adaptability to contemporary architectural styles.

Sturdy Frame – Sleek Design Proportions

Engineered with a 101.6 mm basic frame profile and a 50 mm sill height, the door ensures long-lasting durability while maintaining a light, elegant look. Its high-grade surface treatment preserves vibrant, long-lasting color over time, enhancing the overall aesthetic value of the building.

Thick Glazing Capacity – Enhanced Performance

The door supports glass thicknesses up to 31.5 mm, accommodating tempered safety glass, acoustic glass, or thermal insulation glass. This adaptability significantly improves security, sound reduction, and thermal efficiency for a quiet, comfortable living space.

Superior Wind Pressure and Water Resistance

Compliant with ASTM E330 standards, the door withstands wind pressures up to 2000 Pa, remaining stable under severe weather conditions. Combined with a water tightness rating of 300 Pa (ASTM E331-00), it effectively blocks leaks and protects interior finishes during rainy seasons.

Airtightness and Noise Reduction

With an airtightness rating of 10.7 m³/h·m² (ASTM E283) and a sound insulation rating of JIS 25 dB, the GRANTS 3-panel 3-track sliding door creates a quiet, fresh indoor environment—ideal for bustling urban settings or spaces requiring high privacy.

Three-Track Sliding Solution – Flexible and Convenient

The advanced three-track design allows sashes to slide effortlessly and stack neatly, opening up a wide, unobstructed passage that maximizes natural daylight. This flexibility brings an airy feel to the home while fostering a harmonious connection between indoor and outdoor living areas.