Calculate the fixture spacing, count, and vertical illuminance for wall washing or wall grazing any architectural surface. Checks scalloping risk, recommends optimal throw distance and aiming angle, and generates a wall elevation diagram showing the light distribution pattern.
Measurement units
Metric
Metres, lux
Imperial
Feet, foot-candles
Technique
Wall washing
Even, uniform illumination — minimises texture
Wall grazing
Raking light — highlights texture and relief
Wall dimensions
Fixture — quick presets
Recessed wall washer
1200lm, 15W, 24deg
Track spot
2500lm, 20W, 36deg
Adjustable downlight
4000lm, 30W, 24deg
LED wall grazer
800lm, 8W, 60deg
Linear LED strip
300lm/m, 4W/m
Custom
enter below
Half-peak angle from datasheet
Typical wall wash: 0.6-1.2m from wall
Point fixture aims at — typically 2/3 wall height
Spacing and targets
Please enter wall width and fixture lumens.
Fixtures required
0 fixtures
0
Avg vertical lux
0m
Fixture spacing
0deg
Aiming angle
0W
Total load
No scalloping
Wall elevation — fixture positions and light distribution
Section view — throw distance, aiming angle, and beam spread
Spacing options — same fixture, same throw
Spacing methodSpacingFixturesAvg luxScallop?
Wall wash design tips
Technique
Wall dimensions
Throw / spacing
Aiming angle
Avg vertical illuminance
Fixtures / total load
Scalloping risk
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