Color shown is representative; actual appearance may vary with lighting, wood grain, and exterior exposure.
ARK
Previously known as ARK. ARK Smooth delivers a refined, natural surface, suited for settings where architecture meets exposure, coastal air, humidity, shifting weather, and high-use environments. The wood's modified foundation supports reliable performance indoors and out, bringing material soundness to projects that require durability without losing the warmth and ease of natural wood.
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TextureSmoothRustic
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Grade Options
Select
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Finish
Waterborne Oil
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Profile
T&G, S4S
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Application
Exterior Cladding, Interior Cladding
Sustainable by Design
FSC®-Certified: FSC® Mix Credit
Wood from Responsibly Managed Forests
LEED Credit Contribution
Supports LEED certification requirements
Red List Free DECLARE Label
Free of Red List chemicals and transparently disclosed
Cradle to Cradle Certified® Gold
Certified for material health and sustainable product performance
100% Recyclable & Reusable
Naturally renewable material
Ultra-low VOC Finish (50 g/L)
Formulated for ultra-low VOC (volatile organic compounds) emissions
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SPECIES
Acetylated Radiata Pine
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GRADE
Select
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PROFILES
T&G, S4S
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WIDTHS
T&G: 5-3/8″, 7-3/8″
S4S: 5-3/4″, 7-3/4″
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LENGTHS
6′-16′ Random Lengths
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THICKNESS
3/4″
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WARRANTY
50-Year Above-Ground Protection
25-Year Below-Ground Protection -
TESTING
ASTM E84 – Class C Flame Spread
EN 350 Class 1 Durability
ASTM E2707 – Exterior Wall Fire Penetration Resistance (WUI)
Janka Hardness – 922 lbf (ASTM D143)
Accoya®: Acetylated Radiata Pine
Accoya is a high-performance wood cladding manufactured from sustainably sourced radiata pine and modified through a proprietary acetylation process. Engineered for exceptional durability and dimensional stability, Accoya resists swelling, shrinking, and movement, making it well suited for demanding exterior applications. Accoya offers long-term durability, reduced maintenance, and reliable performance in a wide range of climates.
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