ACQ Pressure Treated Lumber

**CyinCo** · 02-05-2010, 08:19 AM

Correct me if I'm wrong but with the new ACQ lumber, I absolutely must use a galvanized nail to prevent the copper corrosion reaction, right??

**redrocker** · 02-05-2010, 08:29 AM

You are right

**geburgess** · 02-05-2010, 08:32 AM

As taken off Sutherland's website, you gotta use hot-dipped galvanized or stainless steel fasteners because of your copper corrosion effect as you found above.

Read about it here: Project Resources: The FAQ's of ACQ Treated Lumber

**CyinCo** · 02-05-2010, 08:36 AM

Thanks. I haven't done any major building since the arsenic stuff went off the market. I just want to be sure so that my framed walls are breaking off a the treated floor plate in a year.

**DaddyMac** · 02-05-2010, 08:37 AM

I've heard stainless steel are the best.

**Cycloin** · 02-05-2010, 09:16 AM

Originally Posted by DaddyMac

I've heard stainless steel are the best.

You'll also need a second mortgage to purchase them. At minimum, you need a triple zinc hot dipped galvanized fastener that the ACQ won't eat through for a number of years.