Leil® Black Cube Classic 4 Person Outdoor Sauna

The Leil Black Cube Classic is a 4 person outdoor sauna made to order in Estonia. It has a black Thermowood shell, a full black tempered-glass front and L-shaped two-tier alder benches, and measures 2.18m wide, 1.66m deep and 2.22m high. From £7,999 with delivery to mainland England and Wales included. Choose a HUUM DROP, Harvia Cilindro or Mondex Teno heater, UKU control, LED lighting, a half panoramic back window and flat-pack or fully assembled delivery. The Black Cube ClassicBuild your Classic, your way A four-person sauna in a sleek all-black shell, made to order in Estonia. Pick the heater, control, lighting and back window you want in the options above. Seats 4 in comfort, up to 5, on L-shaped two-tier benches Small footprint: just 2.18m × 1.66m Choose flat-pack or fully assembled delivery Delivery to mainland England and Wales included Want one sooner? Our in-stock Classic Kit comes with a HUUM DROP 9kW, UKU Glass WiFi and LEDs for the same £7,999, ready to ship from our UK warehouse. Made to order or in stock?Two ways to buy a Classic Build exactly the Classic you want here, or take our ready-made kit from UK stock and save. What you get This page Classic Kit Black Cube Classic cabin, full glass front £7,999 Included HUUM DROP 9kW heater and side panel +£949 Included UKU Glass WiFi control +£749 Included Two dimmable LED strips +£299 Included Your choice of heater, control and lighting Yes Fixed spec Half panoramic back window or assembled delivery Optional Not offered When it arrives 3–4 week build, then delivery Ships from UK stock Same spec, your price £9,996 £7,999 See the in-stock Black Cube Classic Kit The cabinBack to black, built for smaller gardens The Classic wraps a four-person sauna in a sleek all-black shell. Its footprint is just 2.18m × 1.66m, yet inside there is room for four to sit in comfort, or one adult to stretch out on the long upper bench. L-shaped two-tier benches A 2.03m upper bench along the back wall and a shorter side bench. One adult can lie down. Wall-mounted heater Choose a HUUM DROP on its own side panel, keeping the floor clear, or a floor-standing Harvia or Mondex heater. Full black glass front 8mm black tempered glass across the front and door lets daylight in and keeps the inside private. Optional LED lighting Add dimmable LED strips above the backrest, or under the bench too. Look insideWarm alder and soft light Alder benches stay comfortable to touch, and the glass front fills the room with daylight. HUUM DROP on its side panel, with LED light along the backrest Two levels of alder benches Choose your heaterFive heaters approved by Leil Every heater below is on Leil's 2026 list for the Classic. Prices are shown when you pick one in the options above. HUUM DROP 6kW Wall-mounted on the Classic side panel, with 60kg of stones. Soft, even steam. HUUM DROP 9kW The same award-winning design with more power for faster heat-up. Our most popular choice. Harvia Cilindro 9kW A tall floor-standing heater with 80kg of stones and a protective steel base. Harvia Cilindro 11kW The most powerful option, with 120kg of stones for long, deep heat. Mondex Teno M 6.6kW A compact black heater with 40kg of stones and a side panel. Great value. UKU control HUUM heaters need a UKU control: Local, WiFi, or Glass WiFi that can go inside the sauna. Smart controlPre-heat from your phone Add the black glass UKU WiFi panel and the HUUM app lets you heat the sauna from anywhere, so it is ready when you get home. The touchscreen sets temperature, timer and lighting. Works with 2.4GHz WiFi networks. WiFiApp control 110°CMax temperature 19hrMax timer Make it yoursOptions for the Classic Pick any of these in the options above. The picture in the gallery updates as you choose. Half panoramic back window A curved glass window in the back wall for garden or sky views from the bench. LED lighting Dimmable LED strips above the backrest, or above the backrest and under the bench. Fully assembled delivery Built in the factory and delivered in one piece. You will need a forklift or crane to unload. Flat-pack delivery Arrives on a pallet with step-by-step instructions. Build it yourself or book our team. Built to lastMade in Estonia by Leil Every Black Cube Classic is built from the same materials. 40mm Thermowood Thermowood walls and roof insulate well and last. No extra insulation needed. 8mm tempered glass Black safety glass on the front and door, for daylight and privacy. Alder benches Alder stays comfortable to touch at high temperatures. Two levels let you choose your heat. Black shingle roof Square black shingles over a curved roof shed rain and snow. Leil-approved heaters Every heater option is checked by Leil for safe distances in the Classic. Estonian craftsmanship Made to order by Leil Saunas in Estonia, a country with deep sauna traditions. Technical detailsFull specifications Sauna cabin Bench layoutL-shaped, two-tier Usable bench size2,030 × 596 mm and 704 × 500 mm Seats comfortably4 Maximum seated5 Lie-down capacity1 adult Outer size (W × D × H)2.18 × 1.66 × 2.22 m Inner size (W × D × H)2.04 × 1.38 × 2.04 m WeightAbout 750 kg Walls40mm Thermowood Bench timberAlder Front and door8mm black tempered glass RoofBlack square shingle Heater and electrics HeaterYour choice (see options) Approved heatersHUUM DROP 6 / 9kW, Harvia Cilindro 9 / 11kW, Mondex Teno M 6.6kW DROP mountingWall-mounted on the Classic side panel ControlUKU Local, WiFi or Glass WiFi (HUUM heaters) LightingOptional dimmable LED strips Back wallWood, or half panoramic window Electrical supplySingle or 3-phase, depending on heater (see the Electrical Supply tab) Heater warrantyHUUM 5 years Delivery and installationMade to order, delivered to your door Each Classic is built to your specification in Estonia. The build typically takes 3–4 weeks, followed by delivery to your UK address. Flat-pack saunas come with step-by-step assembly instructions. Delivery included Free to mainland England and Wales. We will call to book a date once your sauna is ready. Flat-pack pallet Arrives on a pallet via tail-lift truck and is unloaded onto your driveway. Self-assembly Handy with tools? Build it yourself in a few days with the manual. Professional installation Our team can build your Classic in one day. Ask for a quote; the price depends on travel time. Black Cube ClassicBuild your Classic from £7,999 Choose your heater, control, lighting and back window above. Made to order in Estonia with delivery to mainland England and Wales included. Build your ClassicCall 0330 043 0870