Lavatory sink
A bathroom sink. On plumbing drawings a washbasin is called a lavatory.
Easily confused with
How to read it
The Army's print-reading manual shows corner and wall lavatories among its plumbing fixture symbols. The Navy's Utilitiesman course lists bathroom lavatories separately from kitchen sinks among the fixtures shown by symbols, and describes lavatories as oblong, circular, square or oval, made of vitreous china, porcelain, steel or enameled cast iron.
Also searched as: basin, bathroom sink.
This explains what a symbol represents on a drawing. Conventions vary between firms and standards, and a drawing's own legend takes precedence.
Read next
- Next in Blueprint symbolsBathtubA bathtub, seen from above, with the drain at one end.
- The same shape in African flagsFlag of the African UnionThe African Union’s flag shows a map of Africa on a green field, surrounded by rays of light and a ring of stars. The African Union says the stars, 55 of them, represent its 55 member states; the Assembly’s 2007 decision asked for a green background to symbolise Africa’s hope.
More blueprint symbols
The same shape elsewhere
Browse symbols drawn with circles or squares and rectangles.
Sources
- Construction Print Reading in the Field, TM 5-704 / AFM 85-27, Departments of the Army and the Air Force, para. 3-8d; fig. 3-8
- Utilitiesman Basic, NAVEDTRA 14265A, Naval Education and Training Command, U.S. Navy, ch. 1, sec. 1.3.2; ch. 6, sec. 10.1.1
- Reading Architects' Blueprints, William S. Lowndes, 1922, International Textbook Company, Scranton (Internet Archive), §6, art. 18
- Engineering Aid 3 (NAVEDTRA 14069), Nonresident training course, April 1995, Naval Education and Training Command (copy hosted by Navy Tribe), Ch. 8, fixture symbols
Researched, edited and approved by Rory Hansen before publishing. Last reviewed September 24, 2026. How we research
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