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Old 09-17-2009, 06:58 PM   #1
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Ques. on removing subfloor


Ive got 3/4'' x 4''(estimate) tongue and groove hardwood floor planks in my fairly old pier and beam house. its just a single layer floor.

if i were to go room by room with a circular saw and cut as close to the wall as i could and remove this flooring and glue and screw down 3/4'' tongue and groove floor as a subfloor, would that be a good idea?

ive got quite a few places that the planks are loose. also in a few rooms i have laid down 1/2'' plywood as an underlayment and these hardwood planks really dont hold a screw.

i also plan to remodel a bathroom and possibly put down tile and i know from reading this forum and others, its not a good idea to put tile over plank flooring.

i just didnt want to lose any strength or integrity by doing this.

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Old 09-17-2009, 08:57 PM   #2
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Ques. on removing subfloor


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if i were to go room by room with a circular saw and cut as close to the wall as i could and remove this flooring and glue and screw down 3/4'' tongue and groove floor as a subfloor, would that be a good idea?
That is do-able...you wouldn't be the first. Depending on where you are located you may be able to rent an "undercut saw" that is designed to lay on its side and cut flush to a wall.

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Old 09-17-2009, 09:32 PM   #3
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Ques. on removing subfloor


why not just rip out the floor? why do you need to cut it close to the walls ?
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Old 09-17-2009, 09:41 PM   #4
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Ques. on removing subfloor


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why not just rip out the floor? why do you need to cut it close to the walls ?
In framing the wall is built on TOP of the floor sheathing
Kinda makes it hard to take out
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Old 09-18-2009, 07:37 AM   #5
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thanks Bud
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Old 09-18-2009, 07:59 AM   #6
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Ques. on removing subfloor


Anyplace there is a wall on top of your 1x4 flooring, you will loose some integrity when you saw it. Especially on walls that are built parallel with the floor joists. Before you cut, make sure any partition walls have joists under them. I would screw the 1x4 floor down to the joists and go over them with a layer of plywood long before I would saw out the subfloor. You'll be trying to add joists and blocking to support your new flooring otherwise.
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Old 09-18-2009, 10:35 AM   #7
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ok, ill screw the planks down. thanks.

i had a 2nd question. this may get long.

i can crawl under the house and i wanted to add some beams inbetween the ones that are there. it varies but here is basically what i have under there.

ive got the concrete pillars on 16'' square pads, 4x6 beams(unkown kind), 2x6 joists on 24'' centers(unkown kind). the span of 4x6 to 4x6 varies from 7 to 9ft. so i wanted to add a supporting beam inbetween these 4x6 spans

i dont think i can drag a 4x6 beam under there, would it be ok if i used 4x4's?

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