🛋️ Living Room Design Tool
Living Room Lighting Calculator
Design a complete layered lighting scheme for any living room. Place furniture on the floor plan, choose your mood and fixtures, and get zone-by-zone lux targets, dimmer circuits, and a placement layout.
Room style preset
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Room dimensions
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Place your furniture
Clear all
Drag items from the palette into the room. Select a placed item to rotate ↺, resize ↘, or remove ✕.
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Sofa (3-seat)
Loveseat
Sectional
Armchair
Coffee table
Side table
TV / Media unit
Fireplace
Bookcase
Dining table
Floor lamp
Rug
Door
Window
Drag items from the left into your living room
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Empty living room
Drag items here from the palette
3
Fixtures & mood
Recessed
Pendant
Chandelier
Track lighting
Cove / indirect
Flush mount
None
Wall sconces
Picture lights
Cove strip
Sconces + picture
🛋️Relaxing
🎬Movie night
🥂Entertaining
📖Reading
💼Bright / working
Lighting totals
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Total lumens
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Ambient lux
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Est. watts (LED)
Fixture placement
Colour temperature
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Dimmer & circuit guide
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The 4 layers of great living room lighting
Every professional living room design uses all four layers. Missing even one creates a space that feels “off” — usually because it’s only ambient or only task.
Layer 1 — Ambient (general)
The base layer. Ceiling recessed, chandelier, or flush mount. Target 100–150 lux in the room. Always on a dimmer — this is where most people over-light their living rooms.
Layer 2 — Task lighting
Floor lamps beside seating for reading. Table lamps on side tables. Target 400 lux at reading plane. These should be bright enough to read comfortably without the ceiling light on.
Layer 3 — Accent lighting
Highlights art, architecture, and texture. Wall sconces, picture lights, cove strips, shelf lighting. Creates depth and visual interest. Always 2700K or warmer for maximum drama.
Layer 4 — Decorative / mood
Candles, string lights, lamps that are visually interesting even when off. These aren’t about lux — they’re about atmosphere. The difference between a room that looks designed and one that doesn’t.
Common living room lighting mistakes
These are the patterns that make living rooms feel either too dark, too flat, or too clinical
One central ceiling light only — The single most common mistake. One overhead source creates flat, shadowless light with no depth. Add floor lamps, table lamps, and accent lighting to get multiple sources at different heights.
No dimmer on the ceiling fixture — A living room ceiling light without a dimmer forces you to choose between “off” and “interrogation.” Every ambient circuit in a living room needs dimming.
Recessed lights too cool (above 3000K) — Living rooms need 2700–3000K. Cool white above 3000K kills the cozy factor completely. Your mood follows your colour temperature.
Recessed lights directly above the TV — Creates glare and reflections on the screen. Leave at least 4ft between any ceiling light and the front face of the TV. TV bias lighting on the wall behind fixes the contrast problem instead.
Floor lamp behind the sofa instead of beside it — A floor lamp should be beside and slightly behind the reading position, not centred behind the sofa. It needs to light the book or screen you’re looking at, not the back of your head.
No accent lighting on art or architecture — Bare walls with good ambient light feel like a hotel corridor. Even one picture light or a pair of sconces transforms the perceived quality of the space.