PLANET FT Drop-Down Door Threshold Seal 1050mm Adjustable Acoustic 48dB Smoke Control

Product Overview

The PLANET FT drop-down threshold seal is engineered for integration into doors requiring enhanced acoustic and smoke-control properties within commercial and institutional environments. Featuring a silicone seal and a drop-down mechanism with a 20 mm extension, the bar effectively blocks airborne noise and smoke infiltration once the door closes, aiding compliance with building acoustic and safety requirements.

The ability to shorten the 1050 mm bar by up to 100 mm (down to 950 mm) offers flexibility during installation, making it adaptable to door cut-outs or on-site sizing changes. This feature minimizes installation delays and reduces procurement risk for contractors managing multiple door sizes in a fit-out project. Especially suitable for projects where acoustic performance up to 48 dB and smoke-control properties are critical, such as school, hospital, and hotel renovations.

Key Features

• Sonic insulation 48 dB ? certified sound reduction for doors in noise-sensitive buildings


• Smoke-control barrier ? integrates with fire and smoke protection concepts


• Silicone drop seal ? provides durable, long-term sealing performance


• Adjustable length ? can be trimmed by up to 100 mm for flexible installation


• Drop-down stroke 20 mm ? accommodates larger door-to-floor gaps


• Tool-free adjustment ? suitable for rapid on-site fitting

Technical Specifications

• Length: 1050 mm


• Shortening Capability: Up to 100 mm (can be cut to 950 mm)


• Material: Silicone seal with drop-down mechanism


• Drop-down Stroke: 20 mm


• Sound Insulation: Up to 48 dB


• Function: Smoke and sound control

Applications

Commonly used in commercial and institutional buildings such as offices, schools, hospitals, and hotels. Suitable for doors requiring enhanced acoustic insulation up to 48 dB and smoke-control, particularly in upgrade, renovation, or new fit-out projects with variable door widths.

Packaging & Shipping

Standard export packaging. Unit includes threshold seal (length 1050 mm) and required installation accessories.