Draught and soundproof glass doors... Anyway glass doors close completely flush all the way around, except for the gap between the securit glass panel and the floor. The edge of the glass panel is the male (convex) part, and the doorstops in the doorframe the female (concave) part. The combined action ensures perfect closure and positioning of the glass door, even in the case of swinging doors. This offers enormous and unique acoustic and thermal added value. See also the 5th golden rule.