Lancer Marine 8.5 X 25 16oz Seaside Pontoon Boat Carpet Marine carpet should be durable and be able to take a lot of wear and tear from constant traffic and outdoor elements. It is likely that at some point the carpet on your pontoon boat will need to be replaced or upgraded. Lancer Marine boat carpet is a great option. Lancer manufactures quality carpets at a reasonable price. Each Lancer pontoon boat carpet comes pre-cut 8 feet 6 inches and 25 feet long to fit most standard size pontoon boats.