Dimensional Lumber

This includes material 1″ to 6″ thick, and 2″ to 12″ wide. Most products are readily available up to 20′ in length, although some can be purchased in longer lengths. We stock exclusively dry douglas fir (DDF) as well as douglas fir lumber (DF) from Local Mills.

  • 2×4 through 2×12 Dry Douglas Fir
  • 4×4 through 6×12 Douglas Fir

Treated Lumber

This includes several grades of pressure treated material. Utility pressure treated is rated for ground contact and is most often used where it comes in contact with concrete or soil. Standard and Better pressure treated is primarily used as structural material in exterior applications, such as joists for a deck. Classic Decking is an appearance grade product for exterior decking and handrails.

  • 1×4 Pressure Treated
  • 1×6 Pressure Treated
  • Plywood 3/8″ – 3/4″ Pressure Treated
  • Lumber up to 26′ long
  • Timbers up to 30′ Long
  • 1×4 Pressure Treated
  • Precut Stair Risers

All-Weather Woods

Cedar Products

This includes a very wide variety of cedar products, from trim and decking boards to patterned products such as siding and interior finish products. Most are cut from western red cedar, although some are available in other species such as:

  • 1×2 through 1×12 Clear Cedar
  • 1×4 through 1×12 Select Tight Knot Cedar
  • 2×2 through 2×12 Clear S4S Cedar
  • 2×4 through 2×12 Select Tite Knot Cedar
  • Cedar Sidings – 20 types
  • 4×4 through 4×12 Clear Cedar
  • Cedar Decking
  • Cedar Shingles & Shakes

Hall Forest Products / Specialty Forest ProductsDeckorators Railing ComponentsWestern Red Cedar LumberIronwoods / Cascade Capitol Lumber  

Plywood & Sheeting

This includes structural and finish-grade plywood, as well as underlayment and sheet sidings made of plywood and OSB/Fiber products. All of these are available in a variety of thicknesses and lengths.

  • 3/8″ to 3/4″ CDX Plywood 4×8 4×10
  • 1/4″ – 3/4″ ACX Plywood 4×8
  • 5/8″ – 1 1/8″ T&G Sub Floor Plywood
  • 7/16″ and 5/8″ OSB Sheeting
  • 3/8″ – 3/4″ Particle Board Sheeting
  • 1 1/8″ Plywood
  • Concrete Form Panels
  • Most Plywoods 4’x8′ thru 5’x12′ available
  • Marine Plywood
  • Baltic Birch
  • Tempered Hardboards
  • Pressure Treated Plywood

American Plywood Assoc.James Hardie

Siding & Trim

Few home improvements or repairs can improve the appearance, curb appeal, and value of your home like new siding. We have a wide selection of quality siding to choose from. The list of products consists of a wide variety of materials:

  • Wood Siding
  • Cedar Siding
  • Cedar Shingles
  • Cement Fiber
  • T1-11 Pattern Sidings 4’x8′ – 4’x9′ – 4’x10′
  • Hardiplank Sidings – Lap and Sheet Form

LP Smartside / Hall Forest / James Hardie

Specialty Sheet Goods

This category includes a broad spectrum of finished plywood, as well special materials for underlayment. The plywoods include oak, birch, mahogany, marine plywood, melamine, MDO, and high-density particle board. Other materials listed in this section are vinyl tackboard, soundboard, wonder board and tilebacker. Most of these sheet goods are available in a variety of thicknesses.

  • Oak Plywood
  • Birch Plywood
  • Concrete Board
  • Sound Boards
  • Melamine Sheets
  • MDF Sheets
  • High-Density Particle Boards
  • FRP Structural Panels
  • Maple Cherry M.D.O.
  • Plastic Laminate (Formica)
  • Marine Plywood


This section of the catalog covers a very wide variety of building materials used in interior trim and finish. It includes hardwood lumber, mouldings, stair parts, porch posts and columns and several cabinet lines.


  • Oak
  • Hemlock
  • Mahogany
  • Fir
  • Cedar
  • MDF

Finger Jointed Flat Stock:

  • Hemlock
  • Oak
  • Fir
  • MDF
  • Finger Jointed Cedar
  • Mahogany Hand Rails
  • Casing
  • Bases
  • Stops

Custom Woodwork:

  • Mantels
  • Columns
  • Railings
  • Posts
  • Porch Ceiling Trim
  • Stair Systems

Metrie (Mouldings and Millwork) / LJ Smith Stair Systems


We stock a full line of eco-friendly formaldehyde-free insulation products!
This includes fiberglass and sheet insulation board. It has information regarding Quadlock insulating form panels.

  • 4×8 Sheet Goods 1/2″ to 2″
  • Vinyl Insulation
  • Spray Foam
  • Sill Sealer
  • Cellulose Blow-in Insulation (Blow-in machine available)
  • Insulated Concrete Forms *
  • Sound Deadening Batts
  • Fire Resistant Batts

*Insulated Concrete Forms (ICF) like those manufactured by Quadlock Building Systems are revolutionizing the global building industries for residential, commercial, institutional, and industrial developments. Currently, ICF construction makes up approximately 5% of new residential construction (USA) and is growing at 25-30% per year. Building with Insulating Concrete Forms is gaining momentum over other building methods because of its unparalleled comfort, energy efficiency, and safety ratings at comparable costs.

Knauf Insulation / Quadlock Building Systems / Roxul Insulation / Certainteed


The types of the doors are wooden, glass, or metal doors. Most wooden doors are used for increased privacy and are commonly used in bedrooms, bathrooms, and extra rooms.
Glass doors with wood or Vinyl Framing are mostly used as patio doors and entry doors.
We carry Garage Doors, Sliding Doors, Single Hung, and French Doors, with many choices in materials and shape both interior and exterior.
This section includes both interior and exterior doors, made of wood, masonite steel, and fiberglass. There are hundreds of styles available, so brochures are included to help narrow down choices. Most doors available in 10 days or less. Special orders are our specialty!
Here are some of the manufacturers we carry:

Codel Doors Larson Storm Doors Simpson Door Co.Buffelen Door (USA) Lynden DoorWild River Doors (USA)


We carry a very wide variety of cedar products, treated lumber, synthetics like NyloBoard, and metal.  When you come in, we can go over all the options and find what works best for you.

Decking & Railing: Pressure Treated DeckingTigerwood HardwoodsIronwood HardwoodsWestern Red Cedar Batu Hardwood Decking

Railing Components: Atlantis Cable Rail / Aluminum and Cable Rail


We carry one of the best window lines for our Northwest weather.
Whether you are in the market for replacement windows or a new construction project, we carry many styles to choose from.
Here are some of  the most common styles of windows:

  • Awning Windows – used for ventilation and can be placed above doors or below windows.
  • Casement Windows – another popular type of window that allow for more light while providing wide open views.
  • Double Hung Windows – a traditional style window, usually made of wood.

Prime Windows


Skylights are available in a variety of sizes and are designed to easily integrate into your ceiling and roof construction. You can easily have more natural light in your home and your rooms will feel more spacious. The increased natural light can also reduce your overall energy costs.

Skylights are available in metal and wood framed styles, in tubular form, and ventilated options.

Crystalite, Inc.Velux WindowsSuntekTam Skylights


Cabinets are among the most powerful ways to bring a room to life and convey the personalized character of your home’s interior. Whether you’re choosing cabinets for your kitchen, den, bathroom or laundry room, Mount Vernon Building Center has the experience to help you choose the right cabinets for your home. We have been selling quality cabinetry for over 35 years. Our professional staff will turn your dreams into reality. We sell three major brands of cabinets that will accommodate all homeowners and contractors. Stop by for a free consultation and estimate.

Canyon Creek Cabinet Co.Founders Choice


Roofing types include composition, cedar shingles, and several types of metal roofing. Product quality is apparent both in appearance and durability for the types of roofing we carry.
Special design in some of the Composition Shingle Products ensures random placement and adds depth and texture to increase curb appeal. All Composition Shingles are UL Class ‘A’ fire rated, the highest rating possible. From the fiberglass core to the 3M ceramic-coated granules that add just the right color, PABCO Roofing products are built to last.
Metal Roofing comes in a variety of styles, from ribbed Barn Style painted metal sheets with exposed fasteners to stylish Snap-Lock Standing seam panels.
We supply a wide variety of metal roofing from agricultural buildings to custom homes. Our main supplier is Champion Metal of Washington. From 3′ long x 2′ wide to 60′ long x 3′ wide we can cover your project. Shipments are fast! Usually 7 days or less. Call for a free estimate.

Pabco Roofing ProductsChampion MetalCorrugated Polycarbonate Sheeting 


Pavers can be used to resurface many different areas from landscaping to decks and flat roofs. They come in a variety of colors and are super easy to install!
Quad-Lock Concrete Building Solutions build unlimited wall widths, many different insulation values, corners, angles, T-walls, columns, pilasters, brick ledges, and radius walls, using just a few standard components. Panels made of Expanded Polystyrene (EPS) and Ties made of High-Density Polyethylene (HDPE) create a Concrete Form that will accommodate vertical and horizontal Reinforcing Steel as required. Filling the cavity with concrete will create solid concrete walls with 2-4 hour Fire Resistance Ratings (FRR). The EPS Forming System will stay in place and turn into the best insulation available today, saving you energy costs for the lifetime of the building. We readily carry pier blocks, structural blocks, and most concrete supplies.

Quad-Lock Concrete SolutionsQuikrete Concrete