Leil Black Cube Classic 4 Person Outdoor Sauna Kit

Leil Saunas Black Cube Classic 4-5 Person Outdoor Sauna Kit

Modern Design | Outdoor Kit | Thermowood & Alder Finish

Minimalist Design. Maximum Presence.

Bold. Sophisticated. Unapologetically modern. The Black Cube Premium Sauna is more than a wellness space — it’s a sculptural statement for your backyard. With its sleek all-black Thermowood exterior, crisp lines, and smoked tempered glass, this sauna embodies contemporary luxury without compromise.

Designed for outdoor spaces where form matters as much as function, the Black Cube fits beautifully into compact yards and patios, while comfortably seating up to four adults inside. The interior features natural wood finishes, layered alder benches, and dimmable LED lighting, creating a soothing environment that’s as calming to the eyes as it is to the body.

Build It. Enjoy It. Make It Yours.

This sauna kit is designed for self-assembly — making premium wellness more affordable without sacrificing quality. With detailed instructions included, you or your builder can have it up and running in a matter of days. Every component is engineered to fit seamlessly together for a clean, professional finish.

Crafted for Comfort. Designed to Impress.

The Black Cube Premium combines thoughtful engineering with timeless materials:

• Thermowood exterior and roof for excellent insulation and durability

• 2-level alder benches for sitting or lying back in comfort

• Tempered black glass windows and door for a private, moody interior

• LED mood lighting (dimmable) to set the ambiance

• Full-circle arches and square shingle roof to balance minimalism with subtle architectural detail

And despite its compact footprint, it doesn’t feel small — the spacious interior volume of 201.7 cu ft (5.71 m³) ensures you have room to stretch out and unwind.

Features

• Fits up to 4 people

• Thermowood walls and roof (1.6” thick / 40mm)

• Square shingle roof with full-circle arches

• Black tempered glass door and front panel (0.31” / 8mm thick)

• 2-level alder benches with 1–2 backrests included

• Dimmable LED lighting system

• Plastic NeroStep floor mat for safety and cleanliness

• 3–4 ventilation openings for proper airflow

• Includes heat protective bedding for the stove

• Delivered as a flat-pack self-assembly kit with instructions

• Base frame painted black during assembly

Specifications

What’s Included

• Complete self-assembly sauna kit
  
  
• 2-level alder benches and 1–2 backrests
  
  
• Tempered black glass door and front wall
  
  
• NeroStep plastic floor mat
  
  
• Pre-painted moldings and black base frame
  
  
• Detailed assembly instructions and video
  
  

Resources

Brochure

Installation Manual

Assembly Video