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Mstrlucky74 02-02-2014 04:17 PM

Base molding &carpet
 
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We are putting carpet down with padding and there are tack strips that need to go down as well. Do I install this molding flush with the concrete or do I need to leave some space under it for tack strips. Maybe I'm not thinking about it correctly and the tack strips go next to the molding and not under. Doesn't make sense that it would go under even if some if the strip was still exposed. Thanks

kwikfishron 02-02-2014 04:56 PM

I install the base first holding it up 3/8-7/16", use spacers and set the base on that. This works for most carpet.

The tack strips don't go under the base, their installed just shy of it so the carpet can be tucked underneath.

joecaption 02-02-2014 05:29 PM

Cut some scraps of the base board and set the scraps under the trim as it's being installed.
MDF will soak up any moisture rising from that slab and mold up on the back side.
Have you talked to the carpet installers and asked them how they suggest it should be done?
Sorry man just not a fan of MDF.
Dents to easy, fuzzes up when trying to sand outside corners, almost always molds up with the slightest moisture.

Mstrlucky74 02-02-2014 06:06 PM

Quote:

Originally Posted by joecaption (Post 1300749)
Cut some scraps of the base board and set the scraps under the trim as it's being installed.
MDF will soak up any moisture rising from that slab and mold up on the back side.
Have you talked to the carpet installers and asked them how they suggest it should be done?
Sorry man just not a fan of MDF.
Dents to easy, fuzzes up when trying to sand outside corners, almost always molds up with the slightest moisture.

What is MDF?

Mstrlucky74 02-02-2014 06:08 PM

Quote:

Originally Posted by kwikfishron (Post 1300736)
I install the base first holding it up 3/8-7/16", use spacers and set the base on that. This works for most carpet.

The tack strips don't go under the base, their installed just shy of it so the carpet can be tucked underneath.

Thanks a lot Kwik. So there will be some carpet that extends over the the tack strip and it will tuck under the molding?

joecaption 02-02-2014 06:16 PM

Medium density fiber board = MDF, it's ground up cardboard.
Only thing good about it is it's cheap to buy.

rusty baker 02-02-2014 06:50 PM

Ask the installers if possible. I like the base on the floor but some like it raised.

Davejss 02-02-2014 07:39 PM

Put your base molding right on the subfloor. Your carpet installers will put their tackless strips where they want them. After they stretch the rug they will use a hammer and carpet chisel to tuck the rug under your molding.
Some guys will shim the baseboard up a bit. I never do, and it's never been an issue for the carpet guys.

rusty baker 02-02-2014 07:45 PM

I think the carpet looks better with the base on the floor, but some installers prefer it raised. The trimmer works better with it on the floor, too. Of course, what do I know. Oh yeah, I'm a certified installer with 40 years experience.

woodworkbykirk 02-02-2014 07:49 PM

as others have stated use 3/8 spacers to keep the base up off the floor.

as for mdf trim being junk thats not true. if your buying it from a bigbox store yes as the stuff they sell is lower quality , it has more resin in it that wood which makes it fuzzy.. if you buy through a trim dealer that specializes in it they will use a much higher density mdf that will hold up.. i use trim from www.vintagemouldings.ca..

if your not going the mdf route look into preprimed pine or even poplar

kwikfishron 02-02-2014 08:06 PM

The carpet needs to be under something imo.

The only way I'd drop the base is if a shoe molding is to follow after the carpet.

Personally, all trim, caulk, paint, etc should be "done" before the carpet guys show up!

rusty baker 02-02-2014 08:26 PM

The carpet doesn't need to be under anything. It is tucked between the tack strip and the baseboard. The strip is angle cut to lock it in and the nails are angled toward the wall.

firehawkmph 02-02-2014 08:55 PM

I use the fat end of a cedar shim under each end of the molding to space it up about 3/8" off the floor. I pull the shims out as soon as it's nailed. On concrete especially I find it helps due to the normal fluctuations in the concrete. You don't end up fighting the humps.
Also, that might not be mdf the op is using, he never stated that. Could just be he prepainted the trim. See homeowners do it that way quite often. But for the record, I'm not a fan of it.
Mike Hawkins :)

Mstrlucky74 02-02-2014 09:24 PM

Quote:

Originally Posted by firehawkmph
I use the fat end of a cedar shim under each end of the molding to space it up about 3/8" off the floor. I pull the shims out as soon as it's nailed. On concrete especially I find it helps due to the normal fluctuations in the concrete. You don't end up fighting the humps. Also, that might not be mdf the op is using, he never stated that. Could just be he prepainted the trim. See homeowners do it that way quite often. But for the record, I'm not a fan of it. Mike Hawkins :)

Thanks ....,,it is MDF :(

Fix'n it 02-02-2014 09:28 PM

Quote:

Originally Posted by Davejss (Post 1300813)
Put your base molding right on the subfloor. Your carpet installers will put their tackless strips where they want them. After they stretch the rug they will use a hammer and carpet chisel to tuck the rug under your molding.

how can the carpet go under the molding, when the molding is directly on the floor ?


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