Brick
Marks brick masonry in a section or plan, drawn as evenly spaced diagonal lines.
Easily confused with
How to read it
Brick is one of the material conventions in the Army's print-reading manual and the Navy's Builder Basic course. The Army manual also uses closely spaced parallel lines as general section lining when an object is all one material, and different patterns where materials differ.
Also searched as: brick hatch, masonry hatch.
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
Because diagonal lines are also general section lining, the drawing's legend or notes say whether they mean brick.
Read next
- Next in Blueprint symbolsBatt insulationMarks batt insulation, the soft fibrous insulation fitted between studs or joists. It is drawn as a continuous row of loops.
- The same shape in Asian flagsFlag of IndonesiaIndonesia’s flag is two equal horizontal stripes, red above white, called Sang Merah Putih (“the Red and White”). The flag law gives the colours no meaning; the reading taught in Indonesia, as detikEdu and CNN Indonesia give it, is red for courage and white for purity.
More blueprint symbols
The same shape elsewhere
Browse symbols drawn with lines 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, paras. 1-3k, 2-2b; fig. 2-2
- Builder Basic, NAVEDTRA 14043A, Naval Education and Training Command, U.S. Navy, ch. 3, fig. 3-10
- Reading Architects' Blueprints, William S. Lowndes, 1922, International Textbook Company, Scranton (Internet Archive), §5, arts. 48–49 and 59
Researched, edited and approved by Rory Hansen before publishing. Last reviewed September 24, 2026. How we research
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