Sliding door
A door that opens by sliding along a track. The panels are drawn overlapping in the opening, with no swing arc.
Easily confused with
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.
This explains what a symbol represents on a drawing. Conventions vary between firms and standards, and a drawing's own legend takes precedence.
Look-alikes
A pocket door also slides, but into a hollow in the wall, so its panel is drawn running into the wall itself.
Read next
- Next in Blueprint symbolsPocket doorA sliding door that disappears into a hollow space inside the wall when it opens. The plan draws the door running into the wall.
- The same shape in UML diagram symbolsSynchronous and return messagesArrows between lifelines in a sequence diagram are messages. A solid arrow with a filled head is a synchronous call, where the sender waits; a dashed arrow coming back is the reply.
More blueprint symbols
The same shape elsewhere
Browse symbols drawn with lines or squares and rectangles.
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
Researched, edited and approved by Rory Hansen before publishing. Last reviewed September 30, 2026. How we research
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