Sliding Doors vs. Bifold Doors

Two competing systems for large openings between an extension and a garden. Bifold doors fold accordion-style and stack to one or both sides; when fully open they create the widest possible opening with minimal obstruction. Sliding doors (inline or lift-and-slide) require less maintenance, have slimmer sightlines when closed, and are quieter to operate. Lift-and-slide systems can span very wide openings and provide superior thermal performance.