Bypass Door

Back to Glossary

Bypass Door

What is Bypass Door?

A bypass door is a sliding door system where panels move past each other on parallel tracks to save space.

Description

A bypass door is a type of sliding door system in which two or more door panels slide horizontally past one another on separate, parallel tracks. Unlike swinging doors, bypass doors do not require clearance space in front of the opening, making them ideal for tight or space-constrained areas.

In construction, bypass doors are commonly used for closets, wardrobes, mechanical rooms, and storage areas in residential and light commercial buildings. They are typically mounted on overhead tracks with guides at the floor, and can be constructed from wood, glass, metal, or composite materials depending on design and performance requirements.

From an installation and maintenance perspective, proper alignment of tracks and hardware is critical to smooth operation. While bypass doors offer space efficiency, they limit full access to the opening since only one panel can be opened at a time. Building codes may also influence their use in areas requiring egress or accessibility compliance.

FAQs

  • What is a bypass door used for?

    Bypass doors are used in areas where space is limited, such as closets and storage rooms.

  • How does a bypass door differ from a pocket door?

    A bypass door slides in front of another panel, while a pocket door slides into a wall cavity.

  • Are bypass doors suitable for commercial buildings?

    Yes, they are used in light commercial applications, though hardware and materials must meet durability requirements.

  • Do bypass doors require floor tracks?

    Many systems use overhead tracks with floor guides, though some designs include bottom tracks.

  • Can bypass doors be used for egress?

    Generally no, bypass doors are not suitable where full egress clearance is required.

Fun Fact

Bypass doors became popular in mid-20th-century construction as floor plans shrank and space-efficient design became a priority.

CSI Code

08 33 13

NAHB Code

830