PT Wood Classifications


  #1  
Old 05-11-15, 04:31 PM
P
Member
Thread Starter
Join Date: Mar 2007
Posts: 128
Likes: 0
Received 0 Likes on 0 Posts
PT Wood Classifications

I was at Home Depot getting some fence posts and I asked where their selection of 4x4s were located. All I saw was one stack. It was labeled construction select. I asked if they were rated for ground contact and the answer was yes.

So I continued with the same question for 2x4s, 4x6s, etc. I was told all of their PT wood is construction select, 2 or better, and rated for ground contact.

How can this be correct?

Lowes has several options from 2 and better, 3 and better, ground contact, etc etc. Lowes also states clearly what wood species the PT lumber is, whereas HD does not.

Can anyone clarify?
 
  #2  
Old 05-11-15, 04:38 PM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,964
Likes: 0
Received 9 Likes on 8 Posts
Check the tag on the end of the lumber. It will specifically say whether it is for ground contact or not. Please don't take their word for it. They are there to sell you stuff, not give good advice. You will find 5/4 decking boards in two classifications. #2 and premium. The premium has fewer knots and boogers.
 
  #3  
Old 05-11-15, 05:20 PM
P
Member
Thread Starter
Join Date: Mar 2007
Posts: 128
Likes: 0
Received 0 Likes on 0 Posts
Ahh thats right. Someone told me that before. Thx. Fyi I just checked and their 2x4s no. 4x4s yes.

Are ground contact 2x4s even available?
 
  #4  
Old 05-11-15, 05:25 PM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,964
Likes: 0
Received 9 Likes on 8 Posts
I don't know of any application where I would put a 2x4 in ground contact, so I'd say probably not.
 
  #5  
Old 05-11-15, 05:28 PM
W
Member
Join Date: Feb 2006
Location: USA
Posts: 6,925
Received 58 Likes on 51 Posts
PT Lumber

Are ground contact 2x4s even available?
Rip 4x4's rated for ground contact to get your 2x4's.
 
  #6  
Old 05-11-15, 06:23 PM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,964
Likes: 0
Received 9 Likes on 8 Posts
I don't know, Ken, releasing the energy inside a 4x4 could result in warped 2x4's, and possibly expose the core to weather, whereas it was protected somewhat as a complete board.
 
  #7  
Old 05-11-15, 07:10 PM
J
Member
Join Date: Jan 2011
Location: USA
Posts: 5,006
Received 125 Likes on 110 Posts
What do you plan on using a 2 X 4 below grade for?
And yes ripping any 4 X 4, 4 X 6 ECT. is a bad idea.
It's not treated to the core through the whole board.
 
  #8  
Old 05-11-15, 08:46 PM
F
Member
Join Date: Mar 2006
Location: Wet side of Washington state.
Posts: 18,495
Received 37 Likes on 29 Posts
i simply won't buy structural lumber of any kind at a big box mega-mart homecenter. All too often the material they sell is warped, not square or true or will fail while being cut to fit.

The lumber I buy from a REAL lumberyard has no such defects and I specify number 2 or better. Yes, it does cost a bit more but the ease in using it makes up for the increased cost.
 
  #9  
Old 05-12-15, 04:37 AM
M
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 49,392
Received 720 Likes on 631 Posts
Are ground contact 2x4s even available?
Yes, but you may have to special order them. You will not find them at a big box store!
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: