Whether it's the soundness of a watertight space, or the way we conduct business, integrity is the foundation of everything we do at Marine & Construction Supplies.

Serving the marine industry with integrity since 1975, Marine & Construction Supplies is a family-owned business that stands by its name and reputation.  We provide products and services that you can depend on.  Our customers rely on us to help them understand what product best fits their needs, match them with the most cost-effective solution, and deliver this high-quality product within the time frame we promise.  We specialize in challenging applications where a custom product creates the best watertight solution, while saving time and money and never compromising on quality.

Please measure twice, order once!

A 25% restocking fee will be deducted from your refunded payment for all returned parts orders.
Please use the attached diagrams to make sure that the parts you are ordering will fit.

We are wholesale distributors and do not maintain a retail space. Any in-person consultations are by appointment only.