Sliding door
A door that opens by sliding along a track. The panels are drawn overlapping in the opening, with no swing arc.
This explains what a symbol represents on a drawing. Conventions vary between firms and standards, and a drawing's own legend takes precedence.
How to read it
The Navy's Builder Advanced course describes large sliding doors hung from rollers on a horizontal track, and lists sliding doors for closets and for wide openings between rooms. A plan symbol shows the movement that happens in plan view (TM 5-704): a sliding panel moves along the line of the wall, so there is no arc to draw.
Also searched as: bypass door, patio door symbol.
Look-alikes
A pocket door also slides, but into a hollow in the wall, so its panel is drawn running into the wall itself.
More blueprint symbols
Sources
- Builder Advanced, NAVEDTRA 14045A, Naval Education and Training Command, U.S. Navy, ch. 6, doors
- Construction Print Reading in the Field, TM 5-704 / AFM 85-27, Departments of the Army and the Air Force, para. 2-2a
- Reading Architects' Blueprints, William S. Lowndes, 1922, International Textbook Company, Scranton (Internet Archive), §5, Fig. 44
- Military Standard: Architectural Symbols (MIL-STD-14A), MIL-STD-14A, 3 September 1954, US Department of Defense (scan hosted by EverySpec), §1.1, §4.2, §5.1
Last reviewed September 24, 2026 by Rory Hansen. How we research