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#1
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Plywood with Stitching?
Hi,
We're remodeling and the old flooring (lino and carpeting) has been taken up to install hardwood. I noticed many of the 4'x 8' x 3/16" underlayment plywood has lines of stitching. Yes, stitching, which goes through to both sides, and is made of nylon or cotton multi-strand thread. What is this? I've never seen it before. TIA |
#2
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Plywood with Stitching?
On Monday, July 13, 2015 at 6:12:47 PM UTC-4, Boris wrote:
Hi, We're remodeling and the old flooring (lino and carpeting) has been taken up to install hardwood. I noticed many of the 4'x 8' x 3/16" underlayment plywood has lines of stitching. Yes, stitching, which goes through to both sides, and is made of nylon or cotton multi-strand thread. What is this? I've never seen it before. TIA Very common in boatbuilding to stitch plywood then epoxy over, but I've not seen it on a floor. |
#3
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Plywood with Stitching?
On Mon, 13 Jul 2015 16:44:40 -0700 (PDT), TimR
wrote: On Monday, July 13, 2015 at 6:12:47 PM UTC-4, Boris wrote: Hi, We're remodeling and the old flooring (lino and carpeting) has been taken up to install hardwood. I noticed many of the 4'x 8' x 3/16" underlayment plywood has lines of stitching. Yes, stitching, which goes through to both sides, and is made of nylon or cotton multi-strand thread. What is this? I've never seen it before. TIA Very common in boatbuilding to stitch plywood then epoxy over, but I've not seen it on a floor. I've never seen plywood underlayment stitched, but "fingerjointed hardwood "or "fingerjointed parquet" is often stitched with nylon cord. |
#4
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Plywood with Stitching?
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#5
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Plywood with Stitching?
On Tue, 14 Jul 2015 00:54:03 -0400, micky
wrote: On Mon, 13 Jul 2015 20:55:44 -0400, wrote: On Mon, 13 Jul 2015 16:44:40 -0700 (PDT), TimR wrote: On Monday, July 13, 2015 at 6:12:47 PM UTC-4, Boris wrote: Hi, We're remodeling and the old flooring (lino and carpeting) has been taken up to install hardwood. I noticed many of the 4'x 8' x 3/16" underlayment plywood has lines of stitching. Yes, stitching, which goes through to both sides, and is made of nylon or cotton multi-strand thread. What is this? I've never seen it before. TIA Very common in boatbuilding to stitch plywood then epoxy over, but I've not seen it on a floor. What's the purpose of this? Doesn't the glue hold it together. I've never seen plywood underlayment stitched, but "fingerjointed hardwood "or "fingerjointed parquet" is often stitched with nylon cord. Same question? Does "self jigging" ring any bells??? |
#7
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Plywood with Stitching?
On Tue, 14 Jul 2015 17:43:23 -0400, micky
wrote: On Tue, 14 Jul 2015 12:23:31 -0400, wrote: On Tue, 14 Jul 2015 00:54:03 -0400, micky wrote: On Mon, 13 Jul 2015 20:55:44 -0400, wrote: On Mon, 13 Jul 2015 16:44:40 -0700 (PDT), TimR wrote: On Monday, July 13, 2015 at 6:12:47 PM UTC-4, Boris wrote: Hi, We're remodeling and the old flooring (lino and carpeting) has been taken up to install hardwood. I noticed many of the 4'x 8' x 3/16" underlayment plywood has lines of stitching. Yes, stitching, which goes through to both sides, and is made of nylon or cotton multi-strand thread. What is this? I've never seen it before. TIA Very common in boatbuilding to stitch plywood then epoxy over, but I've not seen it on a floor. What's the purpose of this? Doesn't the glue hold it together. I've never seen plywood underlayment stitched, but "fingerjointed hardwood "or "fingerjointed parquet" is often stitched with nylon cord. Same question? Does "self jigging" ring any bells??? No but I looked it up. Was the stitching put in before the glue set? In the fingerjoint flooring and in boat building - most definitely. In boat building, the whole boat gets stitched together before any gluing/resin application . The stitching holds everything in position for gluing AND it re-enforces the glue joint. |
#8
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Plywood with Stitching?
On Tue, 14 Jul 2015 18:40:32 -0400, wrote:
On Tue, 14 Jul 2015 17:43:23 -0400, micky wrote: On Tue, 14 Jul 2015 12:23:31 -0400, wrote: On Tue, 14 Jul 2015 00:54:03 -0400, micky wrote: On Mon, 13 Jul 2015 20:55:44 -0400, wrote: On Mon, 13 Jul 2015 16:44:40 -0700 (PDT), TimR wrote: On Monday, July 13, 2015 at 6:12:47 PM UTC-4, Boris wrote: Hi, We're remodeling and the old flooring (lino and carpeting) has been taken up to install hardwood. I noticed many of the 4'x 8' x 3/16" underlayment plywood has lines of stitching. Yes, stitching, which goes through to both sides, and is made of nylon or cotton multi-strand thread. What is this? I've never seen it before. TIA Very common in boatbuilding to stitch plywood then epoxy over, but I've not seen it on a floor. What's the purpose of this? Doesn't the glue hold it together. I've never seen plywood underlayment stitched, but "fingerjointed hardwood "or "fingerjointed parquet" is often stitched with nylon cord. Same question? Does "self jigging" ring any bells??? No but I looked it up. Was the stitching put in before the glue set? In the fingerjoint flooring and in boat building - most definitely. In boat building, the whole boat gets stitched together before any gluing/resin application . The stitching holds everything in position for gluing AND it re-enforces the glue joint. Very interesting. It's a good thing I learned this before I built my boat. |
#9
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Plywood with Stitching?
I found this thread by looking for the answer to the question and I still don't have it. I'm in Barrow, Alaska doing some fire restoration on a building and found that the ceiling of the building was sheeted with 1/2" plywood that has nylon stitching, prior to the sheet rock going up. Very curious.
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#10
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Plywood with Stitching?
replying to dsdarryl, Jeremy wrote:
Same here for me only the plywood with stitches in it is located underneath a bathtub we removed in a house we are remodeling... very curious. Did you ever wind up figuring this out? -- for full context, visit https://www.homeownershub.com/mainte...ng-838253-.htm |
#11
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Plywood with Stitching?
replying to Boris, Kyle collier wrote:
Like this, not a boat https://www.homeownershub.com/img/li https://www.homeownershub.com/img/lj |
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