-21%
Copperstone Gray 3/8&Quot; (9.5Mm) Forna Natural Composite Flooring With Waterproof Hydrowood Core
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Copperstone Gray 3/8" (9.5mm) Forna Natural Composite Flooring with Waterproof Hydrowood Core
Copperstone Gray Natural Composite Flooring With Gentle Tonal Variation Spans A Modern Home Bar And Fireplace Seating Area.
Copperstone Gray Natural Composite Flooring Adds A Subtle Stone-Look Surface To A Dining Room With Illuminated Wine Storage.
Copperstone Gray Natural Composite Click-Lock Flooring Complements A Modern Entryway With Built-In Benches And Dark Cabinetry.
Copperstone Gray Forna Natural Composite Flooring Large Sample
Copperstone Gray Swiss-Made Flooring Features A Muted Stone Pattern In A Contemporary Kitchen With Black Cabinetry And Staircase.
Copperstone Gray Waterproof Natural Composite Flooring Covers A Spacious Modern Bathroom With A Glass Shower And Freestanding Tub.
Copperstone Gray Natural Composite Flooring With Soft Concrete-Look Texture Surrounds A Contemporary Kitchen Island With Black Barstools.
Copperstone Gray Natural Composite Flooring With Subtle Stone-Look Variation Extends Through A Glass-Lined Hallway Beside A Pool Patio.

Copperstone Gray

Made in SwitzerlandForna Natural Composite Flooring9.5mm (3/8 Inch)Floating/Click Lock
4.8 store rating on Google

$7.19 per sq.ft. $9.09 Save 21%

$129.49 per box $163.71 · one box covers up to 18.01 sq. ft.

Copperstone Gray from the Forna Natural Composite collection combines a natural linseed composite surface, waterproof Hydrowood core, and cork backing in a 3/8 in (9.5mm) click plank rated Class 23 residential and Class 33 commercial.

In stock 306 boxes
sq. ft.
|
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Total $0.00
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Recent reviews from our customers

  • Our new floor looks beautiful!

    Iva V.

    Reviewed: Logan – 1/2″ (12mm) (Cork Floating)

  • We totally love our new floor! It feels soft but sturdy under foot. The color and pattern are beautiful. This floor along with the underlayment we invested extra in, have dampened the sound in my meditation room. I…

    Patti S. · Verified buyer

    Reviewed: Porto Mist – 7/16″ (11mm) (Cork Floating)

  • I love the Umber Swiss Cork flooring. I ordered several different samples and I liked a lot of them, but the Umber stood out to me as my favorite. I like the randomness of the pattern, and the natural look of it. My…

    Carolyn H. · Verified buyer

    Reviewed: Umber – 7/16″ (11mm) (Cork Floating)

At a glance

At a glance

Key facts

Format
Plank, approx. 24.4 in x 17.7 in (620 x 450 mm)
Total thickness
3/8 in (9.5 mm)
Installation
Floating, click lock
Coverage per carton
18.01 sq ft
Pieces per carton
6
Durability class
Commercial class 33; Domestic class 23

Performance profile

Comfort & Warmth

Warmer than laminate & hardwood

Very Good

Durability

Heavy residential & commercial

Excellent

Ease of Installation

Click-lock, no glue or coating needed

Excellent

Natural Surface

Natural linseed composite surface over an engineered core

Very Good

Water Resistance

Waterproof Hydrowood core; less than 1% swelling after 24 hours (EN 317)

Excellent

Sound Isolation

Good sound isolation

Very Good

View all specifications →

Overview

Copperstone Gray Natural Composite Flooring

A waterproof Forna Natural Composite floating floor that pairs natural ingredients with commercial class 33 durability. Copperstone Gray brings natural linseed composite, one of the original natural floor coverings, into a modern 3/8 in (9.5 mm) floating plank. The surface is made mostly from renewable raw materials: linseed oil, pine resin, limestone, cork wood flour, and jute. The result is a gray floor with genuine material depth rather than a printed imitation. Each plank is built in three layers: a 0.06 in (1.5 mm) natural linseed composite surface over a 0.27 in (6.8 mm) waterproof Hydrowood core, finished with a 0.05 in (1.2 mm) agglomerated cork backing. The core keeps the plank stable around moisture (24-hour swell under 1 percent), while the cork backing softens every step and cuts impact noise by roughly 18 dB. Underfoot it feels warmer and quieter than tile or laminate, and the HotCoating-protected surface carries a class 33 rating, so it is at home in busy hallways, kitchens, and commercial spaces alike. With a lightfastness rating above 7, the color holds up even in sun-drenched rooms. Planks click together with a Uniclic locking profile, so the floor floats over the subfloor with no glue or nails, and it is optimized for use over underfloor heating. Greenguard Gold certification confirms low emissions for healthier indoor air.

Why this floor

  • Waterproof Hydrowood core: 24-hour swelling value below 1 percent (EN 317).
  • Commercial class 33 and domestic class 23 rated (EN 16511), with micro scratch resistance MSR-B1 and stain resistance grade 4-5.
  • Around 18 dB impact sound reduction (EN 140) from the natural linseed composite layer and pressed cork backing.
  • Lightfastness above 7 (ISO 105): the color resists fading under extensive sun exposure.
  • Uniclic click-lock joints with locking strength above 650 kg per linear meter (ISO 24334): a tight, glue-free floating installation.
  • Greenguard Gold certified with AgBB-tested emissions, made mostly from renewable resources: linseed oil, pine resin, limestone, cork wood flour, and jute.
  • Underfloor heating compatible, with a low thermal resistance of 0.09 m²K/W for efficient warmth.

See it in action

Specifications

Specifications

Dimensions & packaging

Format
Plank, approx. 24.4 in x 17.7 in (620 x 450 mm)
Total thickness
3/8 in (9.5 mm)
Pieces per carton
6
Coverage per carton
18.01 sq ft
Weight
Approx. 1.95 lb per sq ft (9,500 g/m²)
Recommended overage
10%
Board Length
620mm (24 ¹³/₃₂ inch)
Board Width
450mm(17-46/64 inch)
Board Thickness
9.5mm (3/8 Inch)

Construction & finish

Color
Copperstone Gray
Construction
1.5 mm natural linseed composite surface over 6.8 mm waterproof Hydrowood core with 1.2 mm agglomerated cork backing
Wear layer
Hardwearing PU protection
Finish
High resistant Natural Shield water-based polyurethane
Bevel
No
Certification
UL Greenguard Gold (low emissions)
Shade
Light

Performance & installation

Profile
Uniclic Click Lock
Installation
Floating, click lock
Install location
Floor
Application
Commercial and residential
Durability class
Commercial class 33; Domestic class 23
Impact Noise Reduction
17 dB
Radiant Heat Compatible
Electric Heating Compatible, Hydronic Heating Compatible, Underfloor Heating Compatible
Floor Grade Level
Above Grade, Below Grade, On Grade

Warranty & origin

Warranty
15 years residential (Class 23); 5 years commercial (Class 33)
Country of Origin
Switzerland
View technical test data

Standards and reported results for this product.

Property Standard Result
Dimensions and thickness EN 427 & EN 428 ca. 620 x 450 x 9.5 mm
Classification EN 16511 Domestic 23; Commercial 33
Total weight EN 430 ca. 9,500 g/m²
Effect of castor chair EN 425 Suitable for type W
Reaction to fire EN ISO 9239-1 Cfl s1 (B1)
Thermal resistance EN 12524 0.09 m²K/W
Dimensional stability EN 434 < 0.05%
Residual indentation EN 433 max. 0.12 mm
Lightfastness ISO 105 > 7
Resistance to chemicals EN 423 Very good resistance
Emissions value AgBB Tested according to AgBB scheme
Swelling value, 24 h EN 317 < 1% (waterproof)
Locking strength ISO 24334 > 650 kg per linear meter
Reaction to static electricity EN 1815 < 2 kV
Coefficient of friction EN 51130 R10 (very safe)
Micro scratch resistance EN 16094 MSR-B1
Effect of stains EN 438-2:2016 Grade 4-5
Impact sound reduction EN 140 ca. 18 dB
Impact resistance EN 438-2 / EN 13329 Class 34, >= 1800 mm fall height (big ball)
Slip resistance EN 13398 2002-11 0.45 = DS
Furniture foot shift EN 16581 No visible damage

Installation & care

Installation & care

Use this checklist to plan the project, then follow the linked product guide for the exact requirements.

  1. Confirm that the subfloor is clean, dry, level and structurally sound; use a moisture barrier where the linked guide requires one.
  2. Acclimate and inspect the material, mix planks from multiple cartons, and preserve every required perimeter and transition gap.
  3. Sweep or vacuum grit and clean with a well-wrung damp cloth or mop—never leave standing water on the floor.

Product documents

Common questions

Common questions

Can I install this over radiant (underfloor) heating?
Yes. This floor is optimized for underfloor heating systems, and its low thermal resistance of 0.09 m²K/W lets heat pass through efficiently while the cork backing adds comfort underfoot.
How does it handle water and spills?
The 6.8 mm Hydrowood core is waterproof, with a tested 24-hour swelling value below 1 percent (EN 317), and the Uniclic joints lock tightly with over 650 kg per linear meter of locking strength. Clean up spills as they happen and the planks stay flat and stable.
Will it stand up to pets and heavy traffic?
Yes. It carries a commercial class 33 durability rating, an abrasion-resistant surface with MSR-B1 micro scratch resistance, stain resistance of grade 4-5, and it is rated suitable for type W castor chairs, so busy households and commercial spaces are well within its comfort zone.
How is it installed?
As a floating floor: the planks click together with the Uniclic locking profile, with no glue or nails needed. Plan for the recommended 10 percent overage when ordering, and each carton of 6 planks covers 18.01 sq ft.

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