Monarch Plank La Grande Thyon

Overview

Monarch Plank La Grande Thyon is a European oak engineered hardwood from Monarch Plank’s La Grande collection. La Grande is Monarch’s widest standard plank, with premium color treatments and an ultra-matte Bona urethane from Sweden. Grade: rustic; surface: smooth; finish: Bona® UV urethane, ultra-matte. Size: 11-3/8″ wide, 25/32″ thick, 6 mm top layer; lengths of 10′. It can be installed by glue-down, nail + glue, float. Manufacturer item number: MON341138LATH. See Thyon at our Woodland Hills showroom at 21030 Victory Blvd, or ask us for pricing and availability.

Specifications

Manufacturer	Monarch Plank
Collection	La Grande
Color	Thyon
Manufacturer item #	MON341138LATH
Flooring type	Engineered hardwood
Species	European Oak
Width	11-3/8″
Overall thickness	25/32″
Top layer (wear layer)	6 mm
Length	10′
Grade	Rustic
Finish	Bona® UV Urethane, ultra-matte
Sq ft per box	Contact us to confirm
Pattern	Straight plank
Top layer cut	Sawn
Surface texture	Smooth
Color treatment	Reactive Stain
Core / backing	Hardwood Lumber
Gloss level	Ultra-Matte
Installation methods	Glue-down, Nail + Glue, or Float
Last verified	Sept 23, 2026 (Monarch Plank product page)

Color and Appearance

Thyon has a smooth surface and a reactive-stained color treatment, with a ultra-matte finish. Monarch Plank does not publish a written description for this color, so we recommend seeing it in person in our showroom or at home before you decide. Because it is real wood, every plank is different.

Construction

Engineered construction pairs a real hardwood wear layer with a cross-layered core. It moves less than solid wood through Southern California’s dry Santa Ana winds and seasonal humidity changes. The 6 mm top layer leaves material for future sanding and refinishing.

Installation

Our crews check your subfloor for moisture and flatness, acclimate the flooring, and install it to Monarch Plank’s published instructions. Learn more about our hardwood flooring installation.

Delivery and Pickup

Monarch Plank flooring is ordered through the distributor. Call to confirm current availability and lead time, and ask about delivery to your home or job site, or pickup from our store.

See It in Person

Visit our showroom at 21030 Victory Blvd, Woodland Hills (Mon–Wed & Fri 10–6, Thu 10–4, Sat 10–5, Sun closed), or request a free in-home estimate and we’ll bring samples to you.

Care

• Sweep or vacuum (hard-floor setting) regularly to remove grit.
• Clean with a barely damp mop and a cleaner made for finished wood floors. Never wet-mop or steam.
• Use felt pads under furniture and mats at entries.
• Keep indoor humidity steady to limit seasonal gaps.

Warranty Summary

Monarch Plank lists a lifetime structural warranty, plus a 25-year residential and 3-year light commercial finish warranty. Read the full terms on Monarch Plank’s warranty page.

More From Monarch Plank La Grande

• Monarch Plank La Grande Lumiere 11-3/8″ plank
• Monarch Plank La Grande Parsenn 11-3/8″ plank
• Monarch Plank La Grande Nendaz 11-3/8″ plank
• Monarch Plank La Grande Grenoble 11-3/8″ plank
• Monarch Plank La Grande Venosta 11-3/8″ plank

Frequently Asked Questions

How much does Monarch Plank La Grande Thyon cost?

We quote Monarch Plank flooring by project, because the final price depends on square footage, current distributor pricing and whether you need installation. Call (818) 963-0878 or use the form below for current pricing and availability.

Can I see this floor in person before I buy?

Yes. Ask us to set aside a sample at our Woodland Hills showroom, or request a free in-home estimate and we will bring samples so you can see the color in your own light.

Can it go over concrete?

Engineered hardwood can usually be glued down or floated over a dry, flat slab after a moisture test. We check your subfloor during the estimate and follow Monarch Plank’s installation guidelines.

Do you install Monarch Plank flooring?

Yes. Our installers handle subfloor checks, moisture testing, acclimation, installation and finishing details.

Wood is a natural material. Color, grain and character vary from board to board, and screens and lighting change how a floor looks. Please contact us or visit our Woodland Hills showroom to see it in person before ordering.

Also see: flooring installation · current flooring specials · contact and directions

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