Sliding window
A window whose sash slides sideways to open. The plan shows two sash lines side by side, offset from each other.
Easily confused with
How to read it
Horizontal sliding windows are one of the principal window types in the Navy's Builder 3 & 2 course. The sash moves along the line of the wall, so no swing is drawn (TM 5-704). The window mark beside the symbol, a number in a diamond under the A/E/C Graphics Standard, points to the window schedule, which gives the exact unit.
Also searched as: gliding window, slider window.
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 double-hung window slides up and down instead. The Army's manual notes that this movement can't be shown in plan, so its sash lines sit side by side without the offset.
Read next
- Next in Blueprint symbolsDouble-hung windowA window with an upper and a lower sash that slide up and down. The plan shows the sash lines in the wall, with no swing.
- The same shape in Acura dashboard symbolsAcura Road Departure Mitigation (RDM) indicatorAcura’s Road Departure Mitigation (RDM) indicator comes on when there is a problem with RDM or when the system has shut itself off. RDM is the Acura system that warns, steers and sometimes brakes when the car is about to cross detected lane markings or leave the road.
More blueprint symbols
The same shape elsewhere
Browse symbols drawn with lines or squares and rectangles.
Sources
- Builder 3 & 2, Volume 2, NAVEDTRA 14044, Naval Education and Training Command, U.S. Navy, ch. 4, windows
- A/E/C Graphics Standard, Release 2.2, ERDC/ITL SR-23-1, U.S. Army Engineer Research and Development Center, CAD/BIM Technology Center, sec. 3.3.5
- Construction Print Reading in the Field, TM 5-704 / AFM 85-27, Departments of the Army and the Air Force, para. 2-2a
Researched, edited and approved by Rory Hansen before publishing. Last reviewed September 24, 2026. How we research
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