Building Materials

Our team of brokers maintain long-term relationships with mills and manufacturers to stay on top of availability and pricing. We source for you based on specification, cost and location to ensure you’re getting the right product at the best price. Contact a Spartan Lumber Broker to discuss your building materials needs.

Dimensional Lumber

We source a wide variety of dimensional lumber, in all grades, including the following species:

Eastern White Pine (EWP)
Engelmann Spruce and Lodgepole Pine (ESLP)
Douglas Fir (DF)
Douglas Fir/Larch (DFL)
Ponderosa Pine
Spruce, Pine, Fir (SPF)
Southern Yellow Pine (SYP)
Western SPF (WSPF)

We offer these standard sizes:

2x4 through 2x12
1x4 through 1x12
4x4/6 and 5x5 timbers

Dimensional Lumber and Building Materials Source

Stair Parts

SYP Stair Parts
Southern yellow pine stair parts are readily available in grades from #1 common to C&Better. We offer lengths from 36 to 64-inches to fit your construction parameters. SYP stair parts include bullnose treads, risers and stringers.

Hardwood Stair Parts

Red and white oak bullnose treads and tread blanks, poplar risers and stringers are available in a lengths up to 64-inches.

Exterior Cladding & Rainscreen

Thermally Modified Prefinished Wood Cladding

Thanks to its superior weather resistance, dimensional stability, and durability, cladding is one of the most popular applications for thermally modified wood.

ThermalPro Wood Cladding offers exceptional performance and versatile design options. It can be installed vertically, horizontally, or diagonally—perfect for use as exterior siding, soffit, rainscreen, or as a striking indoor/outdoor ceiling or accent wall.

We offer both hardwood and softwood cladding options to fit your design and performance needs. Many professionals choose Southern Yellow Pine for it's unbeatable performance-to-price ratio. Our cladding is milled to the profile of your choice. Leave it natural or factory-finish in your choice of clear coat to achieve a silver patina, or one of 15 colors with UV protectant.

If you are looking for a dark, exotic look? Then try our thermally modified oak, ash or poplar.

All cladding is available in 8' to 16' lengths, our cladding arrives prefinished and ready to install—no additional coating needed before or after installation.

Thermally Modified Cladding for Commercial Projects

Download Spec Sheet

As the manufacturer, we make every order to your exact specifications. Options include:

Hardwood & Softwood Species
Standard & Custom Profiles
Widths from 6” to 12”
Lengths from 8’ to 16’
Choice of 15 UV Blocking Colors
All Natural, Low VOC Finishes with 5+ year Lifespan
Extended Lifespan Finishes of 7 to 10 years.
Class A or C Fire Retardant Additive
Matching Trims

Just ask. We're happy to discuss your project specifications. Custom cladding orders require a 7-9 week lead time.

Customization Options

As the manufacturer, all products are made to order. Customization options include:

Wood Species
Width and Thickness
Choice of 15 UV Blocking Colors
All Natural Low VOCs Finishes with 5+ year Lifespan
Extended Lifespan Finishes of 7 to 10 years
Fire Retardant
Matching Trims

For more information, contact sales@spartanforest.com or call (336) 574-0111.

Thermally Modified Wood Rainscreen & Slatting

ThermalPro Wood Rainscreen & Slatting brings function and form together—ideal for vertical rainscreens, privacy walls, shade screens, fences, and architectural accents. These applications provide shade, privacy, visual interest, and the timeless warmth of real wood to any exterior or interior space.

Thermal modification enhances the natural performance of wood without the use of chemicals, making it resistant to rot, warping, and insects—perfect for slatting exposed to the elements.

We start with appearance-grade, thermally modified southern yellow pine, which is milled into wane-free 1”x4” and 1”x6” boards. Each board can be factory coated with either Wood Sealer or one of our 15 custom UV-protected colors to ensure long-lasting beauty and protection.

Available in lengths from 8 to 16 feet, ThermalPro Wood rainscreen and slatting arrives ready to install, with no additional coating required before or after installation.

Download Spec Sheet

Interior Siding & Trim

White Pine Siding/Paneling

Eastern white pine double-sided tongue and groove, edge and center bead paneling makes finished interiors efficient and cost-effective. Talk to a Spartan representative to discuss custom finishing options.

Primed White Goods

Primed, paint-ready trim and baseboards are readily available to complete your interior finishes checklist. We offer primed LVL scant shoe molding, quarter round and 5-inch square baseboard ideal for multi-family projects.

Download Spec Sheet

Exotic Hardwood Flooring

Brazilian hardwood flooring is highly desired for its longevity and unique beauty. These durable, dense woods offer unique grain patterns and coloring suited to both commercial and high-end residential projects. All of our Brazilian wood is sustainably sourced from certified mills throughout Brazil.

All Brazilian flooring is unfinished ¾” tongue and groove available in 3.25”, 4” and 5” face widths in the following species:

Cumaru, Ipe, Jatoba, Muircatiara (Tigerwood)

Download a spec sheet or contact a Spartan flooring specialist at sales@spartanforest.com.

Download Spec Sheet

*Lacey Act compliant.

Decking

Pressure Treated Materials

Kiln-Dried Pressure Treated Lumber (KDAT)

KDAT lumber is kiln dried after pressure treatment which minimizes warps, cups, and twists. It is nationally recognized as a more stable substructure to both wood and composite decking. Treated to UC3A ground contact, available in premium, C&Btr and #1 grades.

Pressure Treated Lumber

Pressure treated lumber is available in a variety of grades including UC3 above ground grade commonly used throughout the U.S. for decking, railing, porch flooring and above ground joists and beams; and UC4 ground contact grade for ground contact posts, joists and beams.

Both pressure treated and KDAT decking are available in 5/4″ x 6″ decking in varying lengths, as well as joist, post and beam sizes.

Thermally Modified Wood Decking

Naturally Durable. Remarkably Stable. Designed for the Outdoors. Thermally modified wood is the ideal choice for decking thanks to its enhanced weather resistance and superior dimensional stability. The modification process transforms the wood at the cellular level—removing moisture-loving compounds and making it hydrophobic. That means it resists absorbing water, which drastically reduces warping, cupping, and splitting.

Lightbulb moment? This makes it perfect for decks, porches, piers, pool surrounds, walkways, balconies, and more.

At ThermalPro Wood, we offer both hardwood and softwood decking options to fit your design vision and performance needs. Many professionals choose Southern Yellow Pine for its unbeatable performance-to-price ratio. Our SYP boards are milled to a true 5/4 dimension (1.25" x 5"), delivering added structural integrity and a solid underfoot feel.

Looking for something with a richer, more exotic aesthetic? Try our thermally modified Ash or Oak, available in 5/4 and 1” profiles, grooved or ungrooved to match your installation preference.

Boards are available in lengths from 8 to 16 feet, and every piece can be factory-sealed with Wood Sealer or finished in one of our 15 custom colors, each with built-in UV protection to enhance durability and preserve the natural beauty of the wood.

Download Spec Sheet

Southern Yellow Pine Shown

Exotic Hardwood Decking

Denser and more durable than softwood, exotic hardwoods make the ideal luxury decking solution. In addition to their natural beauty and longevity, Brazilian hardwoods produce natural oils that repel wood boring insects like termites.

IPE DECKING

Brazilian Ipe is extremely weather-resistant and its rich brown color can last for over 50 years with regular cleaning and resealing. This wood's natural oils make it resistant to insects, rot and mildew but Ipe’s claim to fame is its fire resistance.

GARAPA DECKING

Brazilian Ash or Garapa comes in golden brown shades providing a lighter color than Ipe. While it displays the same longevity, fire, weather, rot and insect-resistance as Ipe it is more budget friendly.