How to Install Treated Wood on Trailer Floors


According to Diamond C Trailers, using pressure-treated timber in favour of older boards or plywood in the bed of your utility trailer may help it last for many more years despite exposure to the weather. Your motorbike, gardening equipment, or construction tools may all be safely transported on the treated wood because of its incredible strength. To install the treated wood is quite similar to putting a deck on your home; you will need to make provisions for drainage and the expansion of the wood due to humidity in order to maintain the stability and firmness of your trailer bed.

  1. Take into account both the length and breadth of the trailer. Purchase timber that is just a hair longer than the bed of the trailer so that you may use a single board to fill the whole length. For instance, if the length of the trailer is 10 feet, you should avoid purchasing timber that is just 8 feet long and instead choose for boards that are either 10 or 12 feet long. If you are using timber that is 2 inches wide by 4 inches long, you may figure out roughly how many boards are required by dividing the width of the trailer in inches by four. You will need enough boards to suit the width of the trailer.

  2. Take the measurements of the length of one of the trailer’s sides. It’s possible that this section is the same length as the centre of the trailer, or that a wheel well may split it in half. Using a chop saw, cut the first piece of timber to size so that it would fit. If the side has a raised wheel well, take your measurements on the other side of the well, then cut another piece of timber to the appropriate dimensions. Sand the ends of the wood to eliminate any rough edges and to protect your hands from receiving splinters when loading and unloading the trailer.

  3. Utilizing a paddle bit with a diameter of half an inch, make two holes in either end of the plank. Drill holes around one inch from both ends of the piece of wood to prevent it from breaking. Take some measurements using a tape measure to determine where the centre supports are located on the trailer, and then transfer those measurements to the wood. Drill two holes into the timber that are positioned in a manner that corresponds to the placement of the centre supports.

  4. Position the first board such that it is facing one of the trailer’s corners. Switch out the paddle bit with a metal drill bit measuring half an inch. Drill through the metal of the trailer frame using the holes that were already drilled into the timber as a guide.

  5. According to the instructions provided by Backyard Scape, you should insert carriage bolts into the holes and then use a hammer to tap their heads into the wood. Carriage bolts feature a square base on the head of the screw, and this square base is designed to dig into the rounded corners of the pilot hole in order to secure the bolt. Crawl underneath the trailer and attach a washer and a nut to the bottom of each bolt by threading them together. Use a socket wrench to get the nuts as tight as possible.

  6. Installing boards throughout the width of the trailer should be accomplished using the same method, with drainage and expansion gaps of about one quarter of an inch between each board. Following the drilling of pilot holes and the cutting of each piece of timber to the appropriate size, the carriage bolts were used to secure the wood to the trailer.

    Things You Will Need

    • Measuring tape

    • Chop saw

    • Sandpaper

    • Drill

    • Paddle bit

    • Metal drill bit

    • Galvanized carriage bolts, 1/2-inch diameter, 3 inches long

    • Nuts

    • Washers

    • Socket wrench