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Ceiling Fixtures

Ceiling Fixture

A circle with four short lines radiating outward, placed on the ceiling plan at the fixture location. Represents a surface-mounted or semi-flush light fixture.

Also: flush mount, semi-flush, ceiling light, overhead light

Found in: Center of bedrooms, hallways, closets, entryways, bathrooms

Recessed Can Light

A small circle (about 4 to 6 inches diameter on the plan) with a dot in the center or labeled R. Installed flush within the ceiling, casting a cone of light downward.

Also: can light, downlight, pot light, recessed fixture

Found in: Kitchens, bathrooms, hallways, living rooms, over countertops and vanities

Pendant Light

A circle with a vertical line extending upward to the ceiling or a triangle shape indicating a fixture that hangs from the ceiling on a cord, chain, or rod.

Also: pendant, hanging light, drop light, suspension light

Found in: Over kitchen islands, dining tables, breakfast bars, entryways

Chandelier

A larger circle with multiple radiating lines or decorative marks inside, indicating an ornamental multi-light fixture. Often centered in the room on the ceiling plan.

Also: hanging chandelier, multi-arm light, decorative pendant

Found in: Dining rooms, foyers, entryways, master bedrooms, stairwells

Wall & Accent Fixtures

Wall Sconce

A half-circle or small arc drawn against the wall line with short radiating lines indicating light output. Shows a fixture mounted to the vertical wall surface.

Also: wall light, bracket light, wall-mounted fixture

Found in: Hallways, beside mirrors, flanking beds, exterior entries, staircases

Track Light

A straight line on the ceiling plan with multiple small circles or marks along it, each representing an adjustable light head. The track can be straight, curved, or L-shaped.

Also: track lighting, rail lighting, monorail light

Found in: Kitchens, art walls, galleries, retail spaces, over kitchen islands

Under-Cabinet Light

A thin rectangle drawn beneath the upper cabinet line on the ceiling plan, representing a linear light fixture that illuminates the countertop work surface below.

Also: undercounter light, task light, cabinet light, puck light

Found in: Kitchen counters under upper cabinets, vanity areas, display shelving

Portable & Outdoor Fixtures

Floor Lamp

A small circle on the floor plan (not the ceiling plan) with an upward-pointing triangle or radiating lines, representing a freestanding portable lamp that plugs into a wall outlet.

Also: standing lamp, torchiere, pole lamp

Found in: Living room corners, beside sofas, reading areas, bedrooms

Table Lamp

A small circle or dot placed on a table or nightstand symbol on the floor plan, indicating a portable lamp. Usually shown near outlet locations.

Also: desk lamp, bedside lamp, accent lamp

Found in: On nightstands, end tables, desks, console tables

Landscape Light

A small circle along exterior walkways or garden areas on the site plan, representing low-voltage path lights, spotlights, or uplights for outdoor illumination.

Also: path light, garden light, outdoor fixture, yard light

Found in: Along walkways, driveways, garden beds, building facades, pool areas

How to Read Lighting Floor Plan Symbols

Lighting symbols are drawn on a reflected ceiling plan (RCP) — imagine lying on the floor looking up at the ceiling, then drawing what you see. Each fixture type has a distinct symbol. A basic ceiling-mounted fixture is a circle with radiating lines. A recessed can light is a small circle, sometimes with a dot in the center. Pendants are shown as circles with a line dropping from the ceiling, and chandeliers are larger circles with decorative marks.

The key to reading a lighting plan is understanding layers. Good lighting design uses multiple layers: ambient (general room lighting from ceiling fixtures), task (focused light for work areas like kitchen counters and desks), and accent (highlighting art or architectural features). On the plan, ambient lights are usually centered or evenly spaced, task lights are positioned over specific work areas, and accent lights are directed at focal points.

Switch connections are critical. Dashed lines connect each switch to the fixture or group of fixtures it controls. A single switch symbol (S) controls lights from one location, while three-way switches (S3) appear in pairs controlling the same light from two locations. Follow these dashed lines to understand which switch runs which lights.

Outdoor and landscape lighting appears on the site plan. Wall-mounted exterior fixtures are shown as half-circles on the outside of wall lines. Path lights are small circles along walkways. Spot lights aimed at the building facade may be shown as triangles indicating the beam direction. Under-cabinet lights in the kitchen appear as thin rectangles on the reflected ceiling plan, positioned beneath the upper cabinet line.

Common Mistakes

The most common mistake is ignoring the reflected ceiling plan entirely and being surprised by fixture locations after construction. Another error is not tracing the switch-to-fixture dashed lines — this leads to confusion about which switch controls what. People also frequently miss the distinction between recessed cans (flush with the ceiling, minimal visual impact) and surface-mounted fixtures (hanging below the ceiling, more decorative but need headroom clearance).

Pro Tips

• Always check the reflected ceiling plan — it shows exact fixture placement that the floor plan does not.
• Trace dashed lines from switches to fixtures to understand your lighting controls before construction.
• Recessed can lights need at least 8 inches of ceiling depth — verify ceiling height in areas with recessed lighting.

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