How to Build Doors for a Horse Trailer

Building new doors for your horse trailer requires some knowledge of welding, a few materials, and some time. However, it does save you money. The doors need to be securely attached to the trailer to prevent any accidents while transporting the horse. Doors can be built with or without windows to allow for light and air flow.

Things You'll Need

  • Welding torch
  • Construction grade sheet metal
  • Angle iron
  • Tape measure
  • Sander
  • Three Chrome Flush Hinge, 3-by-6 inches
  • 18 No.10 flat or oval head screws
  • 1/1/2-by-3 1/4 inch spring loaded door latch
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Instructions

    • 1

      Use a tape measure to measure the opening for the door. Measure both the height and width.

    • 2

      Use a welding torch to cut two pieces of angle iron 1/2 inch shorter than the measurement for the door height. Mark as "A." These pieces are the side frame pieces.

    • 3

      Use a welding torch to cut two pieces of angle iron 2 1/2 inches shorter than the measurement for the door width. Mark as "B." These pieces are the top and bottom frame pieces.

    • 4

      Use a welding torch to cut one piece of angle iron the same length as the measurement for "B." Mark as "C." This piece is the middle frame brace.

    • 5

      Lay both "A" and "B" pieces in a rectangular shape. Place the "B" pieces inside the "A" pieces, not at the ends. Measure the frame before welding together to be sure the width and height will fit inside the door opening. Use a welding torch to weld them together.

    • 6

      Weld "C" through the center of the frame length-wise to add support, attaching the ends to the "A" pieces.

    • 7

      Center the heavy construction steel on top of the frame. Weld in place. File down any rough edges.

    • 8

      Screw the hinges to the right side of the door. Screw one 12 inches from the top of the door and one 12 inches from the bottom of the door and the third one in the middle of the door. Screw the corresponding half of each hinge to the trailer at the appropriate heights.

    • 9

      Screw the latch on the left side of the door. Use a 1/1/2-by-3 1/4 inch spring loaded latch with a steel pin. Place it halfway up the door, making it easy to reach.