Maximum Depth Formula
The rule which determines the maximum depth is an indication of the expected contrast, as the further from a window, the lower the illuminance and the greater the contrast between local and background illuminances (and hence glare).
Where
is the
Maximum Depth
w
width of room
=
h
height of room
2hw
Rw
Area weighted average surface reflectance
(1-Rw)(h+w)
Note that for most rooms, 6m is a typical maximum depth
