Go Back  R/C Tech Forums > General Forums > Electric On-Road
Carpet Subfloor Question >

Carpet Subfloor Question

Carpet Subfloor Question

Old 09-17-2014, 05:59 AM
  #1  
Tech Regular
Thread Starter
iTrader: (21)
 
dave-man's Avatar
 
Join Date: Jul 2010
Posts: 446
Trader Rating: 21 (100%+)
Default Carpet Subfloor Question

We're putting in new carpet with a subfloor. The old stuff was just glued down to the concrete. My question is, what should we use for the subfloor? I've heard of 2 layers of 1/2" OSB. I was also told to use 3/4" MDF. (2x4's laid face down 16" on center)

Does anyone have any suggestions one way or the other? We're obviously trying to work within a budget but we want it done right the first time.
dave-man is offline  
Old 09-17-2014, 07:10 AM
  #2  
Tech Master
 
Join Date: Dec 2004
Posts: 1,219
Default

Email scotty Ernest. His temporary track for the IIC is awesome
Juan Aveytia is offline  
Old 09-17-2014, 07:32 AM
  #3  
Tech Champion
iTrader: (34)
 
RedBullFiXX's Avatar
 
Join Date: Mar 2003
Location: Intergalactic Planetary
Posts: 6,542
Trader Rating: 34 (100%+)
Default

The 5280 guys just renovated their track

Loads of info & drama HERE
RedBullFiXX is offline  
Old 09-17-2014, 07:36 AM
  #4  
sg1
Tech Elite
iTrader: (79)
 
sg1's Avatar
 
Join Date: Aug 2004
Location: Ohio
Posts: 3,259
Trader Rating: 79 (100%+)
Default

Here's a link to the pics of the subfloor we put down at NORCAR at the Gate:

https://www.facebook.com/#!/20379807...type=3&theater

We used plastic, 2x4"s, then 2 layers of 7/16" OSB, then lots of sanding
sg1 is offline  
Old 09-17-2014, 09:02 AM
  #5  
Tech Regular
Thread Starter
iTrader: (21)
 
dave-man's Avatar
 
Join Date: Jul 2010
Posts: 446
Trader Rating: 21 (100%+)
Default

Originally Posted by RedBullFiXX View Post
The 5280 guys just renovated their track

Loads of info & drama HERE
Wow!
dave-man is offline  
Old 09-17-2014, 10:16 AM
  #6  
Tech Champion
iTrader: (34)
 
RedBullFiXX's Avatar
 
Join Date: Mar 2003
Location: Intergalactic Planetary
Posts: 6,542
Trader Rating: 34 (100%+)
Thumbs up

Originally Posted by dave-man View Post
Wow!
Those guys are pefectionistas, and that track is pretty bitchen
RedBullFiXX is offline  
Old 09-17-2014, 10:58 AM
  #7  
Tech Fanatic
iTrader: (8)
 
Join Date: Jul 2003
Location: Medina Ohio
Posts: 818
Trader Rating: 8 (100%+)
Default

Originally Posted by sg1 View Post
Here's a link to the pics of the subfloor we put down at NORCAR at the Gate:

https://www.facebook.com/#!/20379807...type=3&theater

We used plastic, 2x4"s, then 2 layers of 7/16" OSB, then lots of sanding
Smoothest straightaway EVER....

The NORCAR guys did an awesome job.
ccm399 is offline  
Old 09-17-2014, 12:41 PM
  #8  
Company Representative
iTrader: (25)
 
ammdrew's Avatar
 
Join Date: Feb 2002
Posts: 10,949
Trader Rating: 25 (100%+)
Default

3/4 tounge and groove. 2x4 16 on center. perfectly flat, 5 years down now.
Molzermoweryracing

http://youtu.be/XNw949zzVb4
ammdrew is offline  
Old 09-17-2014, 01:21 PM
  #9  
Tech Champion
iTrader: (17)
 
liljohn1064's Avatar
 
Join Date: Sep 2008
Location: Deerfield, WI
Posts: 5,893
Trader Rating: 17 (100%+)
Default

2x6 I-joists w/3/4" tongue and groove OSB, 16" OC. Build the perimeter so the floor is completely elevated by 2". Shim every 10 feet up the joist to keep it level. The joists can be just about any length and when done with this spacing there is no bounce and you can build it laser flat. If permanent, use liquid nails to hold the top down. Predrill all screw holes and sand lightly after anchoring.
liljohn1064 is offline  
Old 09-17-2014, 01:36 PM
  #10  
Team EAM
iTrader: (79)
 
Join Date: Dec 2001
Location: Murfreesboro, TN
Posts: 9,495
Trader Rating: 79 (100%+)
Default

Here was ours when we built it 3 years ago. 3/4 tongue and groove 30year Advantec floor under layment. 2x6's, cracks and low spots after leveling were bondod up and sanded smooth. Our floor was horrible so we had to use lag bolts to level the floor due to a 4" difference from one end to the other. Came out perfect.

EA
Attached Thumbnails Carpet Subfloor Question-photo-1-1-.jpg   Carpet Subfloor Question-photo-2-1-.jpg   Carpet Subfloor Question-photo-3-1-.jpg   Carpet Subfloor Question-photo-4-1-.jpg   Carpet Subfloor Question-photo-5-1-.jpg  

EAMotorsports is offline  
Old 09-17-2014, 09:39 PM
  #11  
Tech Lord
iTrader: (32)
 
syndr0me's Avatar
 
Join Date: Dec 2004
Location: 5280 Raceway
Posts: 13,267
Trader Rating: 32 (100%+)
Default

Originally Posted by dave-man View Post
Wow!
Nicest, most successful track in the country. We're passionate about what we do. Perhaps too passionate at times.
syndr0me is offline  
Old 09-17-2014, 10:13 PM
  #12  
Tech Elite
iTrader: (5)
 
bkspeedo's Avatar
 
Join Date: Nov 2007
Location: Fort Fun, CO
Posts: 3,149
Trader Rating: 5 (100%+)
Default

I would recommend 2 layers of non tongue and groove OSB 3/4" with alternating pattern from first layer to second so all joints overlap by 4ft. Screwed together with about 40-50 screws per sheet. If there's any major high or low spots glue and shim.

Not all OSB sheets will be the same thickness so check when placing. Thinner sheets will need to be placed on outer edges were cars normally don't drive. At 5280 we didn't think about this issue so we had some spots that needed sanding. We rented a large floor sander for this job.
bkspeedo is offline  
Old 10-24-2014, 02:11 PM
  #13  
Tech Elite
iTrader: (63)
 
theproffesor's Avatar
 
Join Date: Feb 2005
Location: Lugoff SC
Posts: 3,351
Trader Rating: 63 (100%+)
Default

I do construction part time with my father who has been doing it for 45 years. Never have I ever laid joist on the long edge. They will bow and flex more in that direction. Why would you lay them down like this verses the standard of vertical? 2x4 or 2x6 should be more than enough support with 3/4" tongue and grove osb. Use a strong adhesive between the joist and osb, then screw, not nail, the osb to the joist. Screws are overkill, but it will hold them down better. Finally get a floor sander to smooth everything out.

Of course that is all after you have set a level for the top of the joist. I look at like building a deck. Set some 4x4 or 6x6 post if you just feel the need to over do it, 6" tall every 8 feet and set the top of the joist level just above that to give some wiggle room for uneven concrete. When the structure is finished it will be so heavy, it wont go anywhere. Everyone seems to be making this way too hard IMO.

I also don't understand the need for two layers of ply wood. We aren't parking real cars on it. All I could see that doing is creating more places for the floor to separate and create high spots. If the first layer isn't level them the second will be worse
theproffesor is offline  
Old 10-24-2014, 02:20 PM
  #14  
Tech Fanatic
iTrader: (13)
 
Join Date: Feb 2005
Location: Mobile, AL
Posts: 905
Trader Rating: 13 (100%+)
Default

Originally Posted by theproffesor View Post
I also don't understand the need for two layers of ply wood. We aren't parking real cars on it.
Have you looked closely at some of your fellow R/C racers over the past few years?
Serzoni is offline  
Old 10-24-2014, 02:41 PM
  #15  
Tech Elite
iTrader: (63)
 
theproffesor's Avatar
 
Join Date: Feb 2005
Location: Lugoff SC
Posts: 3,351
Trader Rating: 63 (100%+)
Default

Very true. Gotta love good ol' MERICA' home of the whopper.
theproffesor is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.