Pressure Treated?
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Pressure Treated? (by MMIT [VA]) Oct 7, 2022 12:40 PM
       Pressure Treated? (by DJ [VA]) Oct 7, 2022 1:37 PM
       Pressure Treated? (by Hoosier [IN]) Oct 7, 2022 2:19 PM
       Pressure Treated? (by Robert J [CA]) Oct 7, 2022 2:32 PM
       Pressure Treated? (by Vee [OH]) Oct 8, 2022 10:54 AM
       Pressure Treated? (by MikeA [TX]) Oct 8, 2022 2:19 PM

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Pressure Treated? (by MMIT [VA]) Posted on: Oct 7, 2022 12:40 PM
Message:

Should I use pressure treated wood or non pressure treated wood to replace rotted railings and framing on a screened in porch?

The 4x4 corner posts and roof are in good shape.

The house was built in 1970 and is a 3 bed, brick ranch, class C+ neighborhood, that has a nice screened in porch overlooking the back yard.

The porch is 10 feet off the ground, so, the railings need to be in good shape.

Thanks --98.181.xxx.x




Pressure Treated? (by DJ [VA]) Posted on: Oct 7, 2022 1:37 PM
Message:

Whichever is cheaper.

With no ground contact, you don't need PT - but last time I bought 2x4s, the PT was cheaper, and it won't hurt. --68.229.xxx.xxx




Pressure Treated? (by Hoosier [IN]) Posted on: Oct 7, 2022 2:19 PM
Message:

Either. Will you paint or stain? I'd paint/prime or stain ALL sides before install, just to seal the grain especially end grain. Then you can do a final paint after install if you want.

If you buy PT, be aware that if it is really wet (you can get a general idea by how heavy it is compared to untreated of same size), it will warp as it dries. As a result, I'd either buy the driest you can find, or let it sit for a few weeks before cutting and installing.

Also, if you buy PT, don't paint or stain until the moisture content is below about 12%...usually if you let it sit out in sun for about 1-2 weeks that is sufficient...or go ahead and install then wait 2-3 weeks before painting. --99.92.xxx.xxx




Pressure Treated? (by Robert J [CA]) Posted on: Oct 7, 2022 2:32 PM
Message:

Some treated lumber is not designed for areas where they make contact with human skin. A Railing is one of them. Unless you can "paint" over the contact areas, think twice about using treated lumber when you have children a foot. --47.156.xx.xx




Pressure Treated? (by Vee [OH]) Posted on: Oct 8, 2022 10:54 AM
Message:

Treated type wood is used to prevent insect boring and has nothing at all to do with withstanding weather, and varnishing is a good way to prevent splinters and protect --76.190.xxx.xxx




Pressure Treated? (by MikeA [TX]) Posted on: Oct 8, 2022 2:19 PM
Message:

Personally I wouldn't use PT. Have you ever seen the moisture content of PT? As the name implies they inject moisture/chemicals into the green wood to prevent moisture rot and insects. PT is not put into a kiln to dry, it's banded and sent to the lumber yards so the moisture content can be quite high depending on length of time sitting at the yard.

High moisture content will cause shrinking, warping, cracking/checking, and twisting of the materials as it dries. I would go with standard lumber unless it is in contact with the ground. If you paint or stain it it will last a long time and won't have defects emerge as it dries. --209.205.xxx.xx



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