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A rectangle or polygon near the edge of the drawing sheet that defines the usable drawing area of the drawing sheet. Borders may also include zone numbers and center marks.

Border

triangle

a table with a parallel bar used for architectural drafting

a tool used to create consistent angles; architectural triangles come in 30-60-90, 45- 45-90, and adjustable formats

title block

A measurement that numerically defines the size and location of sketch geometry, such as the length of a line, diameter of a circle, or radius of an arc. Specifications of the size and shape of object features so that parts can be manufactured; along with notes and other text, also specify the location and characteristics of geometry and surface texture.

The distance across a circle from one side to the other through the center.

an architectural hand-drafting tool used to construct parallel and perpendicular lines

T square

diameter

a term that describes the relative 'weight' - strength, heaviness, or darkness - of the line against the background or support. It is governed by the pressure on your drawing tool as you make your line - whether this is decreasing or increasing the pressure on the tip so that it leaves behind more or less medium - or altering the angle so that more of the tip is in contact with the paper.

drawing board

An area on the drawing sheet that contains information about the model, company, drafter, tolerances, and other design information.

Lineweight

dimension