nine foot rule
nine foot rule
(OP)
I picked the nine foot off a wall rule, for ease of question.
Where do you measure to? Say for a pendant head
The center of the drop
The nearest edge of the deflector
or something else.
First time I have had it come into question.
Where do you measure to? Say for a pendant head
The center of the drop
The nearest edge of the deflector
or something else.
First time I have had it come into question.





RE: nine foot rule
Centerline