Lift & Slide Door Systems are a popular choice for efficiently opening up large expanses. Able to support panels as large as 100sqft, the system can still be operated with a single finger! A system of levers and wheels drops each panel to the floor sill, compressing double v-gaskets against the floor, sides, and top of the panel. The gaskets are designed to create an airtight and watertight seal around each panel. The result is a system remarkably weather-proof and secure against forced entry.