Located in Nisswa, MN, just 10 miles north of Brainerd MN. DH Docks features Minnesotaâs largest indoor dock and summer fun showroom. Since 1974 DH Docks has been manufacturing aluminum frame docks with three different types of decking, and the Shore TrackerÂ® Marine Railway System which is a fully adjustable boat rail system or boathouse rail system for any watercraft. The showroom is full of boat accessories, boat lift accessories, dock accessories, dock hardware, and water sports equipment such as wakeboards, water skis, tubes, and so much more. Stop by and speak to one of our knowledgeable staff or take a look through our online store.