<p dir="ltr">I can't explain the screws snapping in the floor you worked on previously if it was plyron, since plyron is simply plywood with 1/8" hardboard outer plies. Should not different than hardboard on ply you have now.</p>
<p dir="ltr">I did soecify a particular particle board like product on, iirc, 2 stages. It was a product designed for covering industrial timber floors, in particular fabric mills. Very high resistance to steel wheeled casters. Came predrilled and countersunk. It broke screws but both places quickly learned to get better screws, not big box drywall screws, thankfully. Held paint great.</p>
<p dir="ltr">I'll just add that of the high school stages I've specified plyron for over 20 years, I don't believe any of them have had to replace or recover their floor. I don't believe hardwood veneered ply will last that long.</p>
<br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Oct 5, 2024, 5:56 PM Jon Ares via Stagecraft <<a href="mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">All you Plyron folk out there - must be nice to have money, or<br>
something. In my spaces (19 years and counting) - we have 1/4"<br>
tempered hardboard over 3/4 or 4/4 plywood (on sleepers, neoprene,<br>
etc).... This sacrificial top layer has been replaced twice in 19<br>
years, and is hopefully going to be replaced a third time in the next<br>
couple of years. Overall, our stage floors still look great. They get<br>
one coat of Breakthrough a year, and we do screw into them, as needed.<br>
<br>
Eons ago, I was working on a soundstage with a Plyron floor, and<br>
screws were snapping right and left. Was not a fan. And didn't envy<br>
the people in charge of that studio.<br>
<br>
- Jon<br>
<br>
On Sat, Oct 5, 2024 at 9:23 AM Bill Conner via Stagecraft<br>
<<a href="mailto:stagecraft@theatrical.net" target="_blank" rel="noreferrer">stagecraft@theatrical.net</a>> wrote:<br>
><br>
> Well, fwiw, my stage floor top down is 3/4" plyron, 1 1/8" ply 2x4 sleepers 24" on center, and 3/4" neoprene. I switched from 1/2" plyron years ago when I started putting stage edge warning lights in, which are a 1/2" deep. Needed 3/4" top to route 1/2" deep.<br>
><br>
><br>
> On Sat, Oct 5, 2024, 11:29 AM Duncan Mahoney via Stagecraft <<a href="mailto:stagecraft@theatrical.net" target="_blank" rel="noreferrer">stagecraft@theatrical.net</a>> wrote:<br>
>><br>
>> 3 of our theaters have sprung plywood floors with a top layer of MDF. I prefer a top layer thicker than 1/4" if the thickness can be accommodated. Performance has been good, we have only had to replace floors after floods.<br>
>><br>
>> I would not want a plywood floor without a top layer of something that would not splinter.<br>
>><br>
>> Duncan Mahoney<br>
>> Technical Director<br>
>> Professor of Theater Practice in Production<br>
>> USC School of Dramatic Arts<br>
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-- <br>
Jon Ares<br>
<a href="http://www.arescreative.com" rel="noreferrer noreferrer" target="_blank">www.arescreative.com</a><br>
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