Granite State Dock and Marine

Granite State Dock and Marine Multi-Brand Boat Dealer & Comprehensive Service Center serving Greater New England Area Additionally, we offer custom docks and loose trailers.

Granite State Dock & Marine is conveniently located on Route 28 in Derry, NH. We are a multi-brand boat dealership and comprehensive marine service center. Visit us for all of your boating needs!

09/02/2026

Is your shoreline deep enough for a boat lift? Let’s find out. 📏🌊
Most lifts need a minimum depth + your boat’s draft for safe use. For example, our 4,000-lb Vertical Hydraulic Lift needs just 5.75” + your draft—making it ideal for many boats.

🛥️ Whether you have a small powerboat or a sailboat, we have a lift solution for your waterfront. Call us today at (603) 965-4766!

Built for all seasons, designed to protect. 💪🌊The Infinity RS7 Dock System delivers strength and stability with its dura...
08/29/2026

Built for all seasons, designed to protect. 💪🌊
The Infinity RS7 Dock System delivers strength and stability with its durable 6.75” side rail frame and tool-free InfinityTrack™ customization.

With adjustable Vertical Dock Bumpers, your boat is safe from bumps and scrapes, so you can dock with peace of mind.

What’s more important to you—durability, safety, or customization? Call us today at (603) 965-4766!

Buyer’s Guide to Floating DocksFloating docks are popular for their versatility and ease of ownership, but choosing the ...
08/26/2026

Buyer’s Guide to Floating Docks
Floating docks are popular for their versatility and ease of ownership, but choosing the right type matters.

Most use HDPE floats with frames and decking made from aluminum, wood, or composites. Wooden decking offers a natural look, while commercial docks often use concrete.

At PolyDock, our modular HDPE docks combine flotation, frame, and decking into one seamless, low-maintenance unit built to perform in any environment.

Find the perfect dock for your waterfront lifestyle. Call us today at (603) 965-4766!

🎉2027 Lund Jon Boats Have Arrived!🛶Hurry - these will NOT last longModels Currently Here:Qty 1 - 1240Qty 2 - 1440MQty 2 ...
08/25/2026

🎉2027 Lund Jon Boats Have Arrived!🛶

Hurry - these will NOT last long

Models Currently Here:
Qty 1 - 1240
Qty 2 - 1440M
Qty 2 - 1448 w/ Trailer
Qty 2 - 1648 w/ Trailer

All of these can be fit with a Mercury or Suzuki Tiller

Call and reserve yours today!

☎️603-965-4766

⚙️ Check it before you launch it!Inspect lift cables, pulleys, and motors for signs of rust or wear. A few minutes now c...
08/22/2026

⚙️ Check it before you launch it!

Inspect lift cables, pulleys, and motors for signs of rust or wear. A few minutes now can save you major repairs later. Regular care = smooth lift performance all season long.

Make inspections part of your launch routine. Call us today at (603) 965-4766!

08/22/2026

Duck season is coming up. Come on down and check out our Avid Boats that will bring your hunt to the next level. The AVID BOATS have a massive cockpit and ample deck space for your gear and hunting partner 🐕‍🦺. Option the boats as you want to include hydraulic jack plates, trolling motors and many other accessories!

Congratulations to the Howard family on the purchase of this 2022 StarCraft 210 MDXThank you for your business!
08/20/2026

Congratulations to the Howard family on the purchase of this 2022 StarCraft 210 MDX

Thank you for your business!

08/20/2026

⚓End of Summer Blow Out Sale⚓

Come on down and get some left-over stock from Shoremaster.

The following items have been discounted to cost for our end of summer sale:

Shoremaster 1200PWC Cantilever Lifts (6 left)
Original Price: $2,600.00 each
Sale Price: $2,000.00 each

Polydock 4'x10' Section in Tan (3 left)
Original Price: $2,072.00 each
Sale Price: $1,600.00 each

Come on down and take one!

08/19/2026

Brand new Suzuki 115 for this StarCraft!

Start your mornings with a serene cup of coffee or gear up for an afternoon on the water — all from the comfort and styl...
08/19/2026

Start your mornings with a serene cup of coffee or gear up for an afternoon on the water — all from the comfort and style of your ShoreMaster dock. ☕🚣‍♀️

From our all-aluminum Dock Furniture built for lasting relaxation to our versatile Watersport Rack designed to keep your kayak, paddleboard, or canoe ready for adventure, we’re here to elevate your waterfront lifestyle.

✨ Comfort. Style. Convenience. Season after season. Call us today at (603) 965-4766!

Address

238 Rockingham Road
Derry, NH
03038

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm
Saturday 8am - 12pm

Telephone

+16039654766

Website

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