This plan builds a mobile fish house on a 6Ɖ" x 12' trailer. But these plans may be used or adapted for most any size single-axle trailer.
Step 13. Now for the fenders. Most folks prefer fender backs rather then an opening for mud and gunk to splatter their load. If you didn't buy fenders with backs installed and you have the equipment, cut a piece of 1/8" or thinner plate from an outline of your fender so it fits inside the fender lip and tack into place. Usually a piece that is 10 or 12""deep will work fine depending on how high you wish the fender to be above the tire. Another rule of thumb is to end up with a good fist (4-5") of space between the top of the tire and the inside top of the fender. With tires on the hubs, clamp the fender to the frame side to insure the proper height and equal distance in front & back of the tire. Remove the tire and weld the fender w/backs to the frame. I did not use fender backs on this trailer.