Door operations

Door are supported in openings ( doorways ) on hinges as side hung , on pivots as double swing and on tracks as sliding or folding doors.

Options available include:-

Swinging

• Exterior and interior use
• Door normally turns on hinges about a side jamb when pushed or pulled , but may also be pivoted from head jamb and threshold.
• Required space around doorway for door swing ; check clearance required .
• Most convenient operation for entry and passage.
• Most effective door type for thermal and acoustic insulation and for weather resistance , can be fire-rated.

Bypass sliding

• Exterior and interior use.
• Doors slide on overhead track and along guides or a track on the floor.
• Requires no operating space but is difficult to seal against weather and sound.
• Offers access olny through 50 percent of doorway width.
• Used on exterior as sliding glass doors.
• Used in interiors primarily for visual screening.

Surface sliding

• Exterior and interior use.
• Similar to a bypass sliding door but provides access through full width of doorway.
• No operating space required but is difficult to weatherproof.
• Door is surface-hung on an exposed overhead track.

Pocket Sliding

• Interior use
• Door slides on an overhead track into and out of a recess within the within the width of a wall.
• doorway has a finished appearance when fully open.
• Often used where a normal door swings would interfere with the use of a space.

Folding

• Interior use
• Hinged door panels fold flat against one another when opened.
• Bifold doors divide into two parts , require little operating space , and are used primarily as a visual screen to enclose closet and storage spaces.
• Accordion doors are multileafed doors that are used primarily to subdivide interior spaces . They are hung from an overhead track and open by folding back in the manner of an accordion.