Humphrey's Building Supply


Never replace a bulkhead door again.

For more than 10 years, the ClamDoor has offered homeowners a superior alternative to traditional wooden or steel bulkhead doors that can need replacing every several years.

Inspired by watertight elements in nature and designed and developed with sailing technology, the ClamDoor is handcrafted right here in Rhode Island with the care and expertise of master boat builders and in accordance with the tight specifications of high-performance racing boats and ocean cruisers. The result is an elegant and weathertight product, constructed of 100% fiberglass that is extremely durable and maintenance-free.

The ClamDoor retains its sleek, upscale appearance throughout the life of the product and can withstand up to 700 pounds on top without any weight stress. The fiberglass will never rust, and the smooth gel coat finish – available in a variety of colors to complement your structure –never needs painting. Upkeep is simple, just wash with water and a soft rag and shine with boat wax, if desired.

The ClamDoor is a single, fully-assembled unit that fits all standard openings, making it quick and easy to install. Its single, smooth-action door is quiet, safe, and secure, while remaining feather-light to for ease of opening and closing. It’s energy-efficient and especially well-suited for coastal homes with weather concerns, as well as discerning homeowners anywhere who seek best-in-class materials and craftsmanship.

The ClamDoor is THE single bulkhead solution for the life of any home and comes with a 10-year warranty and our guarantee of satisfaction.