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Dimensions

Obviously it is a pretty critical thing to understand how to read dimensions on a plan. Here are a few tips to understand how we do our dimensioning.
Dimensions

#1

 

Dimensions

 

It's important to understand how measurements are shown so you can accurately read the number.

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They are written as:

feet '  / hyphen / inch / fraction "

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We typically use imperial measurements (feet/inches) as  the majority of the residential building industry uses imperial measurements.

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Dimension lines

#2

 

Dimension (witness) Lines

 

The lines that extend from the dimension to the object being measured are called witness lines. We like to use a  witness line with a gap because it helps de-clutter the plan a little - it can lead to confusion when you have a full plan with many dimensions.

 

Especially if plans are only printed in black and white - ours are printed in colour for greater clarity!

Dimension markers

#3

 

Dimension Markers

 

The markers that are used to indicate the edges of the measurement can use various symbols such as dots, or arrows.

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We prefer using slashes because arrows and dots can make a busy plan look too cluttered pretty quickly. Slashes seem to be a little more subtle and clean. 

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