Finnmark FD-4 Sauna Cover

Waterproof Sauna Cover, 48"x48"x83", Avena

Protect your sauna from the elements and safeguard your investment with the Finnmark FD4 Waterproof Sauna Cover. Featuring a vertical roll-up door with three secure ties at the top, it provides easy access while keeping your sauna protected. The built-in weather slot allows the power cord to pass neatly out of the center of the rear panel.

Crafted from premium marine-grade materials, this cover is durable, weather-resistant, and built to last.

Care Instructions: Wipe clean with mild soap and water—do not machine wash. Hang to dry.

• Waterproof Roof: Marine-grade vinyl roof with a 5-year limited warranty.

• Durable Side Walls: Constructed from marine-grade acrylic canvas, backed by a 10-year warranty.

• Long-Lasting Stitching: Marine-grade UVR polyester thread designed to last the lifetime of the cover.

• Front Valance: Decorative and functional, keeping your sauna clean and dry while providing extra moisture protection.

• Heavy-Duty Zippers: (2) marine-grade #10 zippers for secure, easy access.

• Ties Under Valance: Keep the door flap securely in place when rolled up.

• Robust Hardware: Includes marine-grade 3/8-inch Phillips recess self-tapping screws, brass/nickel studs, and stainless-steel snaps to ensure the cover stays securely in place, even in moderately windy conditions.

• Permanently Attached Door Flap Ties: Ensures the flap stays firmly in place.

• Easy Setup & Maintenance: Installation and cleaning instructions included.

• Dimensions: 48" × 48" × 83"

• Warranty: 1-year craftsmanship warranty plus a 5-year limited material warranty.

Model
FD4-COVER

Door Location
Right Side

Power Cord Location
Front Top Middle

Exterior Dimensions
48" × 48" × 83"

Weather Slot
Yes, in the Middle

Color
Avena

Snaps
Standard – 10

About Finnmark Designs

Finnmark Designs is a leader in premium infrared sauna innovation, known for combining advanced heating technology with exceptional craftsmanship. With a commitment to wellness, performance, and safety, Finnmark has set a new standard in the infrasauna industry—engineering products that deliver deeper therapeutic benefits, higher temperatures, and unmatched durability.

What truly distinguishes Finnmark is its pioneering approach to infrared heating. They are the only manufacturer to integrate UL-listed Spectrum Plus™ short-wave heaters with 360° long-wave carbon infrared panels, creating a full-spectrum experience that outperforms traditional infrared saunas in heat penetration, efficiency, and overall results. Each sauna is thoughtfully designed to deliver maximum therapeutic coverage and consistent, high-quality heat distribution.

Finnmark’s dedication to purity and longevity is reflected in their material choices. Their interiors feature antimicrobial Western Canadian cedar, while their exteriors are crafted from Thermal Plus™ Aspen, an eco-friendly wood treated for extreme durability. This ensures every sauna not only performs at a superior level but also maintains a clean, hygienic environment for years of use.

With thousands of units sold worldwide and a reputation built on innovation, safety, and reliability, Finnmark Designs continues to be a trusted manufacturer for those seeking a truly elevated infrared sauna experience.

1-year craftsmanship warranty plus a 5-year limited material warranty.

Installation Video

Finnmark Sauna Cover Limited Warranty Info

Finnmark Sauna Cover Side Material Technical Sheet

Finnmark Sauna Cover Roof Material Technical Sheet

Finnmark Sauna Cover Thread Material Technical Sheet

Finnmark Sauna Cover Zipper Material Technical Sheet