Sliding Window 4 panels on 2 tracks Grants

TOSTEM’s GRANTS 4-panel 2-track sliding window features a 120 mm frame depth combined with large glass panels, maximizing natural light and panoramic views. The flexible design of each sliding panel creates a seamless transition between areas, making indoor spaces feel airy, luxurious, and modern. Every detail—from the frame and tracks to the glass—is meticulously crafted to ensure smooth, quiet operation and long-lasting durability.

Sturdy and Refined Frame

The 4-panel 2-track sliding window boasts a 120 mm frame depth that strikes a perfect balance between structural strength and sleek elegance. Precision-engineered details ensure stability against mechanical impacts while enhancing the project with a high-end, contemporary look.

Neat Bottom Outer Frame

With a 50 mm sill height, the window maintains a well-proportioned architectural look within the space. This harmonious design ensures strong structural integrity while delivering a light, refined aesthetic that keeps the room feeling open and bright.

Supports Various Glass Types

The GRANTS 4-panel 2-track sliding window accommodates glass thicknesses up to 31.5 mm, supporting everything from laminated safety glass to acoustic or thermal insulation glass. This versatility meets diverse user needs while significantly improving sound reduction and thermal efficiency for the living space.

Wind Pressure and Water Tightness

The window achieves wind pressure resistance of 2000 Pa (equivalent to ASTM standards) and a water tightness performance of 300 Pa (ASTM E331-00), providing optimal protection for interior spaces against driving rain and high winds. These metrics ensure stable performance and keep the indoors dry and comfortable.

Airtightness and Effective Sound Insulation

Meeting the airtightness standard of 10.7 m³/h·m² (ASTM E283), the GRANTS 4-panel 2-track sliding window effectively prevents dust and polluted air currents from entering. With a sound insulation rating of JIS 25 dB, it reduces outside noise to create a quiet, relaxing, and comfortable environment.

The Perfect Choice for Large Openings

Combining sophisticated design, high durability, and reliable performance, the GRANTS 4-panel 2-track sliding window is ideal for villas, townhouses, and modern high-rise apartments, elevating both the lifestyle value and architectural style of the entire building.