Have Questions? Contact Us

Custom Kitchen Cabinet Designs And Beyond

Step into one of Riverhead Building Supply's Design Showrooms, located throughout Long Island, and Rhode Island, and experience the luxury of being able to design your home just the way you always wanted. From stunning custom kitchen cabinets, to interior and exterior doors, countertops, hardware, wide plank flooring and molding, all are on display to help you envision the potential for creating rooms of distinction in your home. Our experienced design team will work closely with you to seamlessly incorporate every lifestyle and design choice, to create a home that is uniquely yours.

Our Services

Custom Kitchen Cabinet Design

Riverhead Building Supply Design Showroom specializes in custom kitchens including beautiful kitchen cabinet designs. Our kitchens unite functionality with style to meet your food preparation, storage, lighting and seating needs.

Windows & Doors

In addition to fine kitchen cabinet designs, Riverhead Building Supply Design Showroom also offers windows and doors that will complement your entire home.


Let Riverhead Building Supply Design Showroom enhance the beauty of your home with Heritage Wide Plank Flooring.

Custom Moulding

Transform a house into a home with our variety of mouldings.


The distinction is in the details with quality architectural hardware for every room.

Cabinetry Throughout the Home

Unique kitchen cabinet designs are just the beginning. Our cabinetry expertise extends beyond the kitchen to bathrooms, bedrooms, home office, media rooms and more.

Visit our Kitchen Showrooms Today

To inquire about Riverhead Building Supply Design Showroom and creating the home of your dreams, contact us or visit one of our Long Island or Rhode Island kitchen showrooms today.


Windows & Doors


Custom Molding


Cabinetry Throughout Your Home