Transoms are major structural parts of fiberglass and aluminum boats. Transoms not only support the weight of the motor, but they maintain the shape of the boat, and serve as the mounting point for holdowns, towing eyes and other accessories. And, they must be able to let water out of the hull, without letting it back in.

Outboard motors apply a considerable load to the transom. The effects of the motor’s weight are magnified when the boat is accelerated under normal operating conditions, and when the boat is bouncing along on a trailer. These loads are concentrated on the fiberglass skin and core where the mount is located. Over time cracks develop. Moisture penetrates the plywood core, leading to delamination and eventual rot. Moisture can also penetrate the transom skin at hardware fasteners, around drain holes and I/O cutouts. These factors have a cumulative effect on structural failure.

When the transom loses its stiffness, so does the outboard motor. And at this point, you need to call us. Elk River Boat Works replaces transoms and specializes in strengthening this area beyond what is necessary to maintain the strength and integrity of your hull. Additionally, we replace floors and decks with the same never-rot-again materials that we use for transom repair.