About Japanese Cedar
Japanese cedar, also known as Sugi, is a lightweight yet strong softwood valued for its warm tone, smooth grain, gentle aroma and natural durability. Commonly used in Japanese architecture, interiors, cladding and wellness spaces, it offers natural resistance to decay, though like all outdoor timber, it still requires care and maintenance over time.
Sauna specifications:
- Model: OBT-1818D
- Sauna Type: Barrel Sauna
- Capacity: 6-7 Person
- Timber: Japanese Cedar
- Diameter / Dimensions: 1800mm x 1800mm
- Bands: 2 x Stainless Steel Bands
- Base: Fibreglass Base with 2 Fibreglass Foot Stands
- Roofing: Waterproof Shingles with Decorative Pine Board
- Hardware: Stainless Steel Screws, Bolts, Nails and Straps
- Hinges: Aluminium
- Door: 8mm Tempered Glass Door
- Door Handle: Magnetic Closure
- Heater Model: Harvia The Wall Internal-Control Sauna Heater
- Power: 4.5kW
- Model Code: HSW450400M / SW45
- Certification: SAA Certified
Included Features:
- Harvia Heater
- Stove guard included
- Fibreglass base included
- Waterproof shingles included - available in black, green or brown upon request.
- Decorative pine board included
- 1 x Sauna Accessories Set (Free Gift)
- Pre-assembled in the factory to check fit and quality before being disassembled and packed
Installation notes:
- This sauna is supplied as a flat-pack kit and requires assembly.
- It comes complete with waterproof roof shingles, which will need to be installed during assembly.
- We recommend 2 people for installation. Assembly time is typically 1–2+ hours, depending on experience, tools available, and site preparation.
Care & Maintenance
Japanese cedar is a natural timber, so it will change over time when exposed to outdoor conditions. To help maintain its appearance, we recommend placing the sauna on a level, well-drained surface, keeping it clear of standing water, and allowing good airflow around the base.
Colour note: As Japanese cedar is a natural timber, colour, grain and tone may vary between boards. Timber tones may also appear slightly different from the images shown due to lighting and screen settings.
This sauna is supplied with the Harvia 4.5kW internal-control sauna heater only. It does not include any other electrical accessories unless specifically stated, such as lights, Bluetooth speakers, external control panels, WiFi controls or upgraded digital controls.



