Quick Facts

Address: 238 Rockingham Rd, Derry, NH 03038
Phone: (603) 965-4766
Founded: 2005
Owner: Mike Adam
Primary Waterfront Products: Aluminum docks, floating docks, boat lifts and PWC lifts
Dock Brands: ShoreMaster and PolyDock
Business Type: Dock and boat-lift dealer / marine service center
Website: Granite State Dock & Marine

Overview

Granite State Dock & Marine is a family-owned Derry marine dealership and service center serving boaters and waterfront owners throughout greater New England.

Founded in 2005, the business grew from a local garage operation into a substantial boat, dock and marine-equipment dealership. Mike Adam, previously the company’s general manager, took ownership in 2022.

In addition to boats and marine service, Granite State maintains a dedicated docks-and-boat-lifts operation offering ShoreMaster aluminum systems, PolyDock floating docks and ShoreMaster boat and PWC lifts.

Dock & Lift Products

• ShoreMaster aluminum docks
• ShoreMaster Infinity dock systems
• PolyDock floating docks
• Modular floating docks
• Boat lifts
• PWC lifts
• Dock-system customization
• Waterfront accessories

ShoreMaster Aluminum Docks

Granite State sells ShoreMaster Infinity aluminum dock systems. Their modular construction provides numerous configuration and customization possibilities for residential waterfront properties.

PolyDock Floating Docks

For properties requiring floating systems, the company offers modular PolyDock products designed for configurable waterfront layouts.

Boat & PWC Lifts

ShoreMaster boat and personal-watercraft lifts are available alongside the company’s dock products, allowing customers to build a more complete waterfront system through one dealer.

Marine Sales & Service

Granite State is also a substantial boat dealership and marine service center, selling new and used boats and providing boating-related service.

Best For

Granite State Dock & Marine is a strong choice for Southern New Hampshire waterfront owners looking to purchase aluminum or floating docks, boat lifts and PWC lifts from an established marine dealership.