Can you store a 4X8 sheet of plywood standing outside for a few days?

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Old 11-21-13, 11:55 AM
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Can you store a 4X8 sheet of plywood standing outside for a few days?

On the front porch out of rain of course, or will it be ruined? It'll be few days before I can work on it and don't have any place to store a full sheet indoors. Temp. may be well below freezing at night.
 
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Old 11-21-13, 01:19 PM
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Low temps shouldn't hurt the plywood any but humidity might. For the most part any moisture it absorbs from the air will dry out sometime after you bring it inside. How thick is the plywood? what type?
 
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Old 11-21-13, 01:34 PM
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It'll be 3/4" cabinet grade, don't know what type of wood yet.
 
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Old 11-21-13, 01:40 PM
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3/4" should be more stable than thinner plywood.
 
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Old 11-21-13, 01:49 PM
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You mentioned humidity - the only time it'll get inside the house is after it is cut, finished and built . Will I be able to work with it if it absorbs any humidity?
 
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Old 11-21-13, 02:01 PM
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As long as it's protected from blowing rain or snow, it's really not any different than the big unconditioned building that the lumber yard had it stored in.
 
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Old 11-21-13, 02:04 PM
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Sounds good. Thank you both.
 
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Old 11-21-13, 03:38 PM
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You want to make sure both sides of the sheet are equally exposed to the air. If only one side is exposed, the uneven change in temperature and humidity of the sheet will cause it to warp. Also keep it out of direct sun for the same reason.
 
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Old 11-22-13, 06:51 AM
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Storing Plywood

Lay the sheet flat and well supported. Do not store standing on its edge.
 
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Old 11-22-13, 09:57 AM
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Lay the sheet flat and well supported. Do not store standing on its edge.
That's the issue, I don't have a large enough space with roof to lay it flat. I am talking about few days, 3-5 days at the most, not a long term storage.
 
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Old 11-22-13, 12:04 PM
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I don't think warpage will be a big deal as long as the plywood doesn't get wet or full sun. Thinner plywoods are fairly flexible and can bow but I think you'll be ok with 3/4" ..... but it doesn't hurt to keep an eye on it and maybe turn it over if there appears to be any issues.
 
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Old 11-22-13, 04:34 PM
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Warpage will be a a problem if both sides are not completely exposed to air circulation. If you lay it flat, it will need to be set on 2x4's or something so air can get underneath. Thickness of the plywood will not matter.
 
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