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Treated Lumber Flooring

HDT Lumber Flooring

Pressure treated Pine flooring is the most commonly used wood flooring material in trailers. The abundant supply of Pine wood in the south coupled with its sturdy nature make for a solid basic flooring choice.

When looking at Pine flooring in the trailer industry there are two different elements that you should consider:

  1. Is it treated? Treated means that the lumber has been run through a process where an anti-rotting solution is injected into the pores of the wood to lengthen the life of the wood out in nature’s elements. Some manufacturers still choose to use an untreated product to reduce cost. This does reduce cost in the short term but it also reduces the life of the floor of the trailer 10X and does not make for a good user experience long term. Diamond C ONLY uses pressure-treated lumber.
  2. Lumber quality is graded on a tiered system, the same system that the building construction industry uses; #1, #2 and #3 grades. #1 being the best and #3 being the “least good” of the three. Basically when you boil it down, the trailer industry primarily uses #2 & #3 grade. #2 vs #3 is going to have less knots, and the knots it does have will be smaller and tighter, have less edge wane (or uneven edges), and less tendency to crack. Similar to the the treated vs. untreated scenario, some manufacturers will opt for the lesser quality #3 grade lumber to save a few dollars in production, which ultimately costs you more in the long term in maintenance and replacement costs. Diamond C only uses #2 or better graded lumber for our trailer floors.

For an even more durable flooring option consider our OAK FLOORING upgrade, or for maximum loading traction check out BLACKWOOD LUMBER.

GTF 2" Treated Lumber Floor

Trailer Flooring Guide Video

Watch below as Jacob goes in-depth on all our flooring choices, shows them up-close on our trailers, and gives tips on which one you should choose for your specific hauling needs.


Air Ride Advantage Program for Air Ride Gooseneck and Step Deck Trailers