Finish work is what separates a good sauna from a great-looking one. This is the piece that closes the gaps.
The PROSAUNAS Thermo-Aspen 2×2 S4SEE SHP Moulding is 1.1″ thick by 1.63″ wide, with eased rounded edges on all four faces. Available in 1, and 10-foot lengths. It’s not decorative in a fussy way. It’s a clean, versatile trim that builders use to cap bench nosings, close the gap at a wall-ceiling junction, frame heater guard channels, and add horizontal structure to an otherwise flat cladded wall.
Why Thermo-Aspen
Thermo-aspen isn’t just treated wood. The thermal modification (extreme heat and steam, no chemicals) restructures the wood at a cellular level so it can’t absorb moisture and won’t move in a high-humidity environment. That matters for moulding more than it might seem: in an untreated wood, a small moulding piece installed tight will swell and bow away from the wall as the sauna cycles through wet and dry. Thermo-aspen stays put. The golden-brown color runs all the way through, so any cut end, bevel, or coped joint keeps the same tone as the face.
It scratches, like all sauna woods do. At 1.63″ wide and 1.1″ thick, it’s also not the piece for a structural role. Use it for what it is: a finish trim, not a support member.
Specifications
- SKU: PS-THERMO-ASPEN-2X2-S4SEE-SHP
- Species: Thermally modified aspen
- Profile: S4SEE SHP moulding, eased edges
- Thickness: 1.1″
- Width: 1.63″
- Available lengths: 1 ft, 10 ft
- Price: $3.34 per linear foot
- Made in: Estonia
Where it goes
Bench nosing caps, ceiling-wall transitions, heater guard framing, light channel reveals, and horizontal accent strips on cladded walls. Works alongside all the thermo-aspen cladding profiles (STS4, Grace, Groove-S) and matches the bench boards exactly in color and tone.
Shipping and samples
Sold by the linear foot. Shipping is a flat $795 to the continental US, or free when you order with a heater. Free samples available. Text your name and address to (844) 565-1113.
Call Ben² at (844) 565-1113 if you’d like to talk through the board count before you order.
Prebuilt
Sauna Brushes
Vents