5

I'm re-framing my first floor and using PT wood everywhere where there is a possibility of area being flooded.

PT wood is your typical 2x4(s) from Home Depot MCA - micronized copper azole chemicals.

I guess I've never realized that PT lumber is corrosive. Which collated nails should I use in my framing gun? Stainless?

Dannyboy
  • 674
  • 4
  • 15
  • 26
  • Are you allowed to use PT lumber for indoors framing in your area?? I doubt it. – Speedy Petey Apr 12 '16 at 00:10
  • 3
    @SpeedyPetey yeah. the problem was afaik only CCA PT wood which was arsenic. It was phased out and replaced with different type PT chemical which is allowed indoors. In fact - required for anything touching concrete. – Dannyboy Apr 12 '16 at 13:06

3 Answers3

7

In general, the codes require fasteners to be of hot-dipped, zinc-coated galvanized steel in accordance with ASTM A153, type 304 or 316 stainless steel, silicon bronze or copper. [source]

FWIW, everything you ever wanted to know about pressure treated wood here.

Tester101
  • 130,386
  • 77
  • 314
  • 605
alfreema
  • 689
  • 5
  • 12
3

Stainless is the most reliable way to go, though hot-dipped galvanized is also an option. It wasn't an issue until CCA was phased out a few years back.

isherwood
  • 119,766
  • 7
  • 148
  • 349
  • 2
    To spoil the linked article: they have to be *hot-dipped* galvanized. Electroplated-galvanized nails will corrode in pressure-treated wood. – stannius Apr 11 '16 at 22:32
  • 1
    To clarify further, they all corrode. It's a matter of coating thickness and longevity. – isherwood Apr 12 '16 at 13:19
0

It sounds cliche, but your best bet is to visit a local lumber yard. Not only will they likely have what you need to go with the lumber, but more often than not, if it's a decent sized pro yard, they will have #1 grade cheaper than HD or Lowe's #2.

user52686
  • 1