Exterior Portfolio is a complete collection of cladding products that will give the face of your home an image you will love. The unlimited siding design options of Exterior Portfolio have been used to create some of America’s most beautiful homes. Now you can enjoy this same impact with the added value of long-lasting, maintenance-free performance.

Maintenance-Free Beauty and Strength from Exterior Portfolio Siding

At Riverhead Building Supply you’ll find all the most popular Exterior Portfolio siding products. Add interest to your home with wood grain siding, Portsmouth® cedar shingles and patterns, soffits and trim, and much more. With durable, wind- and impact-resistant siding you can experience true maintenance freedom. Our inventory includes:

  • Traditional clapboard style – double 4″
  • Dutchlap – double 4″
  • Portsmouth® cedar shingles
  • Soffits and trim

Exterior Portfolio product lines include:

  • Elm Grove
  • CraneBoard
  • Market Square
  • Portsmouth Shake
  • Board and Batten



Portsmouth shake cedar Shake available at Riverhead Building Supply

Portsmouth™ Double 7″ Cedar Shingles

Portsmouth Shake® cedar shake reflects the natural warmth and character of cedar and will give your home classic shake appeal.

Market Square siding available at Riverhead Building Supply

Market Square®

Market Square siding will protect your home and look amazing for years.

Elm Grove siding available at Riverhead Building Supply

Elm Grove

Elm Grove features a timeless selection of styles with its Double 4˝, Double 4˝ Dutchlap and Double 5˝ Dutchlap profiles.

CraneBoard, Board & Batten siding available at Riverhead Building Supply

Board & Batten

CraneBoard® Board & Batten siding has vertical lines and is ideal as an accent or a theme.

CraneBoard siding available at Riverhead Building Supply


CraneBoard has a classic and crisp appearance that will give your home instant curb appeal.