Truck bed
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Elder User
Joined: Jun 2018
Posts: 550
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From: Heuvelton, NY
Truck bed
I have 4x4 pressure treated lumber for cross members above the two rails. I am going to use 2x8 red oak for the actual bed. Should I bolt those directly on the 4x4 or should I bolt 2” angle iron onto the side of the 4x4 and then bolt the floor boards to angle iron?
DoI need to use galvanized bolts going through pressure treated or can I use stainless steel?
DoI need to use galvanized bolts going through pressure treated or can I use stainless steel?
Logistics Pro
Joined: Sep 2014
Posts: 4,920
Likes: 21
From: Bothell & Silverdale, WA
I have 4x4 pressure treated lumber for cross members above the two rails. I am going to use 2x8 red oak for the actual bed. Should I bolt those directly on the 4x4 or should I bolt 2” angle iron onto the side of the 4x4 and then bolt the floor boards to angle iron?
Do I need to use galvanized bolts going through pressure treated or can I use stainless steel?
Do I need to use galvanized bolts going through pressure treated or can I use stainless steel?
Hotshot
Joined: Oct 2009
Posts: 16,165
Likes: 4,767
From: Burbank, WA
Is this truck bed going to be exposed to the elements or kept in a garage? Why use pressure treated lumber? If it will be able to primarily stay dry, conventional lumber will outlast us and you won't have to deal with the corrosive issues of PT lumber. Personally, it would not be my choice.
Logistics Pro
Joined: Sep 2014
Posts: 4,920
Likes: 21
From: Bothell & Silverdale, WA
3/8" will be fine. I would also seriously consider what Wayne says, but I'd still go with stainless and polish the heads.
Logistics Pro
Joined: Sep 2014
Posts: 4,920
Likes: 21
From: Bothell & Silverdale, WA
316 stainless and 6061 aluminum play nicely together, however, aluminum and P/T wood don't like each other very much because the copper used in P/T wood is more noble than aluminum on the galvanic scale, and causes the aluminum to become sacrificial.
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