The barrel is constructed from full-length, 1.65"-thick Thermo-Spruce staves — thermally enhanced wood that is stronger, more dimensionally stable, and naturally more resistant to moisture, decay, and pests than conventional spruce. Inside, smooth, knot-free Thermo-Aspen benches and arched backrests provide cool-to-the-touch seating that stays comfortable even during long sessions.
Heavy-duty AISI 430 stainless-steel barrel bands secure the structure. The included black shingle roof, side-mounted drip edges, and dual floor drains — one near the heater, one near the entrance — keep the interior dry and well-managed.