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Lighting Symbols

It’s really important to make sure the lighting symbols on your blueprints reflect what you want in your lighting plan.  Also it’s critical that lighting matches up with the electrical outlets on your electrical plan. There's a checklist for you at the bottom of the page.


This page is part of the blueprint symbols series.

You may also be interested in the floor plan symbols page.

Get your free blueprint symbols pdf which includes all the blueprint symbols in one file.




Lighting symbols for fixtures are perhaps the least standardized in architecture offices.  There has been so much change over the past few years as LED fixtures and halogens have been added to incandescent lighting.  Symbols for switches are very standardized. 

Remember to check in the key of your blueprint plans.

Blueprint Symbols - Fixtures

pendant light symbol

Pendant light

recessed downlight symbol

Downlight - recessed

Directional downlight - recessed *

Wall light

waterproof downlight symbol

Waterproof downlight *

mini spotlight symbol

Mini spotlight

under cabinet light symbol

Under cabinet light

floor washer lights symbol

Floor washer light

wall up and down light symbol

Wall up and down light

floor uplight symbol

Floor uplight

track lighting symbol

Track light

Fluorescent light symbol

* For directional downlights the arrow indicates the direction of the beam.

* Waterproof lights are required in some places in bathrooms and outside.

Blueprint symbols - Switches

single pole switch symbol

Single pole switch symbol

double pole switch symbol

Double pole switch symbol

three way switch symbol

Three way switch symbol

Four way switch symbol

dimmer switch symbol

Dimmer switch symbol

pilot light switch symbol

Pilot light switch symbol

waterproof switch symbol

Waterproof switch symbol

Let's just get some of those switch names explained...

Single pole switch - This is the most common type of switch. It allows a light to be turned on and off from a single location.

Double pole switch -This is the same as the single pole switch in that it turns a light on and off from a single location but it has two 'hot' wires so it can handle 220v.

Three way switch - It's not very intuitive but a three way switch allows a light to be turned on and off from two locations. So no prizes for figuring out that they need to be used in pairs. This is really useful for the top and bottom of the stairs.

Four way switch - Used in between two three way switches to controlling a light from three locations.

Pilot light switch - A switch with a little light that indicates that the circuit is on.

Checklist for lighting symbols on blueprints

  • Check that the correct type of light fixture is specified.

  • Check that all the correct fixtures are on the correct circuits with the correct switches. For example you might want a switch for the central fixture at each end of the room, and a separate switch for the circuit that has the lamp outlets. Is the 3 way switch for the central fixture specified correctly.

  • Check that the switches are in a sensible place – both the location in the room and the height on the wall.

  • Check that dimmer switches are specified where you want them.

  • Check that the switch panel design, or individual switch layout if grouped in one location are properly specified.

  • Check that there are plug outlets (in the wall or floor) for any table or floor lamps you have planned.

Back to the top of this lighting symbols page.

Go back to the home page to find other information on home design plans (house styles), floor plans and blueprint symbols.


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