MODIFIED COLLECTION
Engineered for extremes.
Designed to
inspire.
The Terramai Modified Collection is processed using heat - not chemicals - to transform the structure of the wood. This innovation builds on practices that have been around for centuries. Today’s thermal modification process takes those traditional principles and refines them - using carefully controlled temperatures and steam to ensure consistent, reliable performance across every board. Our Modified Collection is perfect for exterior applications where natural beauty, long-term performance, and environmental responsibility all matter. When paired with our sourcing and finishing processes, the result is a product that’s as resilient as it is refined.
WHY TERRAMAI?
The Modified Collection from TerraMai redefines exterior wood design—offering thermally modified hardwood and softwood products that are dimensionally stable, durable, and stunning. From precision-milled Siding to architecturally striking Slat Panels, the Modified Collection gives you the freedom to design without compromise.
Key Benefits:
• Modified for Dimensional Stability • Enhanced Resistance to Moisture, Rot, and Insects • Beautiful Natural Grain & Refined Texture • Part of TerraMai’s Unified Color System
Unified Color System
Consistency across species, formats, and applications—without compromising on design. TerraMai’s Unified Color System ensures that our finish tones remain true whether you’re specifying siding, slat panels, or other exterior elements. That means seamless visual alignment across your project, even when mixing profiles or materials. Designed to give architects flexibility and confidence—down to the last detail.
MODIFIED SLAT PANELS
Offered in Modular and Open configurations, our square slat and linear slat panels bring rhythm and refinement to facades. Precision-assembled and easy to install, they combine contemporary lines with long-lasting performance.
Available Formats: • Modular or Open Panels • Hardwood or Softwood • Square Slat or Linear Slat • Slats Available with Square or Rounded Edges
Technical Data Available Species: Modified Hardwood, Modified Softwood Character: Mixed Grain, Very clean with an occasional pin knot. Finish Options: Low VOC Clear or Tinted Exterior Oil Panel Thickness: Modular: 1.25” Open: 2-1/8” Width: Modular: 22” Open: 16” Length: Modular: 96” , Open: 95-7/8” Application: Walls, Siding, Soffits
MODIFIED SIDING
TerraMai’s Modified Siding brings the warmth and integrity of wood to contemporary architecture—backed by the stability of thermal modification. Our Modified siding resists warping, cupping, and decay while delivering rich, natural character.
Available Profiles: • Shiplap 2.0
• Hardwood Square Edge, ⅛” Reveal • Softwood 1/16” Beveled Edge
• Rain Screen
Technical Data Available Species: Modified Hardwood, Modified Softwood Character: Mixed Grain, Very clean with an occasional pin knot Finish Options: Low VOC Clear or Tinted Exterior Oil Plank Thickness: ¾” Face Width: Hardwood 4 ⅝”, Softwood 4 ⅜” Length: 7’ to 16’ random lengths. Application: Walls, Ceilings, Siding, Soffits
CLEAR PROTECT
Our Clear finish lets the natural beauty of modified wood take center stage. With minimal pigment and maximum clarity, it highlights the rich tones and grain variation that define each species—offering warmth, depth, and authenticity in its purest form. Ideal for projects that call for natural material expression and timeless appeal.
Modular Panel Square & Linear Hardwood
Modular Panel Square & LinearSoftwood
Open Panel, Square Softwood
Open Panel, Square Hardwood
Siding, Shiplap 2.0 Softwood
Siding, Shiplap 2.0 Hardwood
KO’WALNUT
Ko’Walnut evokes the richness of classic dark tones with the durability of modified wood. This finish brings a sense of grounding and sophistication to any façade, creating contrast and drama while allowing the natural grain to shine through. Ideal for modern exteriors that demand both presence and performance.
Modular Panel Square & Linear Hardwood
Modular Panel Square & LinearSoftwood
Open Panel, Square Softwood
Open Panel, Square Hardwood
Siding, Shiplap 2.0 Softwood
Siding, Shiplap 2.0 Hardwood
MORCHELLA
Morchella delivers a moody, matte finish with organic warmth. Its earthy black hue enhances the wood’s texture and movement while maintaining a natural, understated elegance. A versatile choice for projects seeking contrast without harshness—grounded, modern, and quietly expressive.
Modular Panel Square & Linear Hardwood
Modular Panel Square & Linear Softwood
Open Panel, Square Softwood
Open Panel, Square Hardwood
Siding, Shiplap 2.0 Softwood
Siding, Shiplap 2.0 Hardwood
SEASIDE
Light, sun-washed, and effortlessly modern—Seaside offers a fresh take on natural wood. Its paler tone softens the grain and reflects light beautifully, bringing an airy, coastal aesthetic to any project. Perfect for exterior where brightness and clarity meet refined performance.
Modular Panel Square & Linear Hardwood
Modular Panel Square & Linear Softwood
Open Panel, Square Softwood
Open Panel, Square Hardwood
Siding, Shiplap 2.0 Softwood
Siding, Shiplap 2.0 Hardwood
SHIRO
Shiro is our softest finish— offering a pale, powdery wash that gently mutes the wood’s natural tones without erasing its grain. Inspired by weathered architecture and minimalist palettes, Shiro brings calm, tonal balance to exteriors seeking simplicity with depth.
Ideal for designs where restraint and refinement make the boldest statement.
Modular Panel Square & Linear Hardwood
Modular Panel Square & Linear Softwood
Open Panel, Square Softwood
Open Panel, Square Hardwood
Siding, Shiplap 2.0 Softwood
Siding, Shiplap 2.0 Hardwood
Let’s Build Better Exteriors Together Whether you’re designing a high-performance facade or a showstopping rainscreen, the Modified Collection gives you a complete toolkit—engineered to endure and designed to inspire.
Request a sample or connect with our team.
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