sales@masonsmillandlumber.com

White River Hardwoods

Mason’s Mill & Lumber is proud to be a distribution partner for White River Hardwoods, a Fayetteville, Arkansas manufacturer known for solid hardwood tambour panels, ornamental mouldings, hand-carved woodcarvings, and other architectural surface products.

Why specify White River Hardwoods?

White River offers a complete range of decorative architectural products, making it easier to source multiple elements of a room from one manufacturer. Instead of sourcing tambour from one vendor, mouldings from another, and architectural details from a third, designers and builders can find everything from flat paneling and curved tambour to crown and base mouldings, corbels, capitals, radius corners, and stone veneer in one catalog.

White River at a Glance

      • 3,000+ profiles across five moulding collections; 10,000+ total SKUs
      • Manufactured in the USA — Fayetteville, Arkansas
      • Ships unfinished; accepts stain or paint
      • Solid North American hardwoods: Red Oak, Hard Maple, Poplar, White Oak, Walnut, Cherry
      • Custom profiles, custom CNC, and coffered ceiling systems available
      • Priming and sanding services available in three tiers
      • 50+ years manufacturing decorative millwork; distribution in 50 states and 27+ countries

Browse White River Hardwoods

Thermory Knotty Pine — CUTEK® Extreme Clear Finish

Thermory Knotty Pine is Scandinavian pine transformed through a chemical-free thermal modification process that uses only heat and steam. Sustained temperatures above 190°C fundamentally alter the wood's cell structure, driving off moisture and breaking down the organic compounds that fungi and insects feed on. The result is a dimensionally stable, rot-resistant board with a warm, deepened caramel tone and the character-rich knots that give knotty pine its signature appeal (Thermory).

To preserve that warm color and extend the wood's outdoor service life, each board is finished with CUTEK® Extreme Clear, a penetrating oil that soaks deep into the wood fibers rather than forming a surface film. Because CUTEK® works from the inside out, it stabilizes the board against moisture movement — the leading cause of cupping, splitting, and checking — without peeling or flaking like traditional coatings. The clear formulation contains no pigment, so the wood will naturally silver over time while remaining fully protected. Maintenance is straightforward: no sanding or stripping required, just a clean and re-oil when the surface begins to dry out (CUTEK®).

Ideal for exterior siding, soffits, ceilings, porch cladding, and covered outdoor living spaces where you want the authentic look of natural wood with modern durability.

Specifications

Spec Detail
Species Scandinavian Pine (thermally modified)
Product Line Thermory Knotty Pine
Modification Thermo-D (chemical-free, heat + steam)
Grade Knotty / character grade
Finish Cutek Extreme Clear (penetrating oil)
Finish Type Oil-based, non-film-forming
Color Warm caramel brown (weathers to silver-gray if left untreated over time)
Rot Resistance Class 1 (highest durability class per EN 350)
Dimensional Stability Significantly improved vs. untreated pine
Warranty 25-year limited warranty against rot and decay (Thermory)
Applications Exterior siding, soffits, porch ceilings, covered decks, cladding, outdoor living spaces
Maintenance Clean and re-oil with CUTEK® Extreme as needed — no sanding or stripping required
Sustainability FSC-certified options available; chemical-free modification process
Origin Sourced and modified in Estonia / Northern Europe

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Categories: Display Products,Mill Applied Finish,Cutek
Sub-Categories:
Tags: Thermory,exterior siding,soffit,porch ceiling,cutek clear,thermally modified wood,cutek extreme,knotty pine
Finish: Cutek Extreme Clear (penetrating oil)

Quote

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    We deliver mainly to Texas, Oklahoma, Louisiana and Arkansas. Orders shipping beyond these states will include significant freight costs.

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    Let Mason's Mill
    Help You Choose

    With seven product lines, more than 3,000 profiles, and a wide selection of wood species, there’s a lot to consider when choosing the right White River products for a project.

    The best option often depends on details that don’t always show up on a spec sheet, like whether the wall is flat or curved, whether the space needs to balance acoustics with its overall design, or whether the new woodwork needs to match existing cabinetry or other finishes.

    Tell us a little about your project and what you’re looking to accomplish, and our team can help narrow the options down to the profiles and products that make the most sense for your application.

    Frequently Asked Questions

    Tambour panels are solid hardwood slat panels on a flexible backing, used for feature walls, kitchen island waterfalls, curved reception desks, columns, cabinetry faces, and casework. The flexible backing lets one panel wrap curves and outside corners that rigid paneling cannot.

    No. Tambour panels are not suitable for wet or high-humidity environments, including showers, bathrooms, and pools. Installation in high-moisture conditions may void the warranty.

    Red Oak, Hard Maple, Poplar, White Oak, and Walnut. All panels ship unfinished and accept any stain or paint.

    Standard tambour panels have a 7–10 business day lead time. Custom panels to spec, up to 120" wide, are also available.

     

    In rooms with strong parallel reflective surfaces, covering 25–40% of total surface area gives a meaningful acoustic improvement. One carton of Harmony Series panels covers approximately 16.41 sq. ft.

    No. All mouldings ship unfinished and accept stain or paint. Priming and sanding services are available in three tiers, and Mason's Mill offers factory-applied finishes.

    Mon Reale uses a fine-grain overlay contoured onto solid Poplar for high-relief ornamental detail across 142 profiles. Traditional mouldings are milled entirely from solid clear Poplar in 219 plainer, classically proportioned profiles.

    Yes. A resin option is available for curved walls, columns, and radius ceilings on both the Mon Reale and traditional lines. Tambour panels wrap curves directly with no special option needed.

    Yes. Tambour panels, mouldings, and MDF radius corners are manufactured in the USA at White River's Fayetteville, Arkansas facility. Select carvings are also USA-made.

    Mason's Mill & Lumber Co. is a White River distribution partner and supplies the full catalog, including custom milling and factory finishing. Request a quote below or contact our sales team at sales@masonsmillandlumber.com.

    Request a White River Hardwoods Quote

    Use the form below to contact our sales team and start your next White River project today.

      We deliver mainly to Texas, Oklahoma, Louisiana and Arkansas. Orders shipping beyond these states will include significant freight costs.

      We're a wholesale millwork and lumber supplier, not a retail store. Order minimums apply, so please include full quantities for your project.

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