Where Quality Meets Excellence

About Us

HDB Marine was established in 1983 and is a recognized leader in the marine industry.

About Us

HDB Marine, also known as Harrison Dock Builders, was established in 1983 by Keith Shannon as a family-owned and operated business and is a recognized leader in the marine industry. We are a full-service custom dock builder and marine contractor that does everything from consulting, design, engineering, manufacturing, retail/wholesale, and service. Our customers include commercial, residential, and government. Our scope of expertise includes all aspects of the water-based marine industry: docks, wave attenuators, floating platforms (including pumping facilities, C-stores, restrooms, and working stages), gangways, ramps, public and private floating moorage systems, dry stack storage systems, boat lifts, boat housing systems, and fuel systems. 

We construct and install “turn-key” marinas. We also carry a wide variety of products including, dock accessories, boat accessories, dock kits, dock hardware, water toys (trampolines and towables), and tram systems. If you can’t find what you’re looking for on our website, give us a call! Chances are we have it or can get it for you.

“At HDB Marine our mission is to delight each and every customer by surpassing expectations. Lead the industry with superior products and commitment to research…”

Green Sustainable Environmental Stewardship

We take our environmental commitments seriously.  Our green efforts apply to our products and services as well as the way we conduct our business.  By using recycled and sustainable materials, we and our customers are helping to protect the environment and make a difference in the world ecology.



HDB MARINE has been in business for over 40 years under the same ownership.

Keith Shannon, founder of HDB Marine, believes that customer care and responsiveness is what has placed HDB in the forefront of the marina and dock industry. “We have a tremendous management team here at HDB. Our experience and attention to detail make our products the best available.”

Keith Shannon


Mark Wagner

Vice President

Isaac Shannon

Regional Sales Manager

Brian White

Production Manager

Dirk Hendricks

Engineering & Estimating

Keith Shannon

President, Marine Co., Inc., HDB Marine.

Keith Shannon has over 28 years’ experience driving pilings of many different types, in both normal and unusual environments. He has designed, built – and installed marinas, piers, wave attenuation, and docks, in numerous marine environments. He has commercial and residential stream Keith has designed many marine products such as gangways, slipcovers, swim ladders, pile connectors, wave attenuators, boom systems, anchor systems, and specialized tooling for the marine industry.

A true field expert, Keith has over 28 years’ direct insight of the workings of the Coeur d’Alene River- and Coeur d’Alene Lake as well as many other waterways of the Northwest. He lives on the Coeur d’Alene River and owns several thousand feet of shoreline. Keith’s unique background and vast marine experience ensures an efficient and effective approach to understanding the needs of his customer.