DaddyMonkey wrote:
I have read how to install tile over plywood flooring at various
websites.

They say the maximum floor joist should be 16" on center with 'a
maximum deflection of 1/360 of the span, at midpoint.'

What does this mean? 1/360th of an inch movement (up & down) between
joist?

I saw this at Super-Tek.com

Thanks,
Dave


What it means is that the allowable deflection of your floor is
1/360 of the span.

Example: span = 360"

360 / 360 = 1"

allowable deflection at the center of the span is 1"

--
Robert Allison
Rimshot, Inc.
Georgetown, TX