
STS4 1×4
A narrow nickel-gap reads calm and continuous without looking flat.
- Size
- 15 × 90 mm
- Coverage
- 3.15 in
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Choose the thermo-aspen face you want below. Each link opens Sauna Design Pro with that material already selected—ready for room dimensions, benches, heater, openings, ventilation, and a complete project.

A narrow nickel-gap reads calm and continuous without looking flat.

The wider face makes compact grain variation feel more furniture-like.

Deep square shadow lines add real depth without changing species or color.

A controlled multi-level face creates motion while keeping installation familiar.

A contoured face catches grazing light and makes a small wall feel intentional.
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