Timber windows
The character of timber, tailored to your building.
Pine or meranti, 68–88 mm profiles and painted or stained finishes. Compare SOFTLINE systems for renovation or new construction.
Timber windows
SOFTLINE 68
Pine or meranti timber window with a 68 mm frame. Shapes and decorative elements can be tailored to the building, including heritage renovations subject to project requirements.
SOFTLINE 78
Pine or meranti timber window with a 78 mm frame. Shapes and decorative elements can be tailored to the building, including heritage renovations subject to project requirements.
SOFTLINE 88
Pine or meranti timber window with a 88 mm frame. Shapes and decorative elements can be tailored to the building, including heritage renovations subject to project requirements.
Shapes and finishes
Choose timber species, colour and decorative details together. For protected buildings, profiles and installation must be assessed against the project requirements.
See our heritage projectSOFTLINE · DUOLINE · 2026
Timber & timber-aluminium windows
The natural character of timber, with or without exterior aluminium cladding. Explore the six SOFTLINE and DUOLINE systems in our 2026 brochure for renovation and new construction.
SOFTLINE 68Show specifications
- Material
- Timber
- Timber frame (mm)
- 68
- Total depth (mm)
- 68
- Seals
- 2
- Glazing (mm)
- 24–32
- Uw / Ug (W/m²K)
- 1,27 / 1,1
SOFTLINE 78Show specifications
- Material
- Timber
- Timber frame (mm)
- 78
- Total depth (mm)
- 78
- Seals
- 2
- Glazing (mm)
- 24–44
- Uw / Ug (W/m²K)
- 0,90 / 0,6
SOFTLINE 88Show specifications
- Material
- Timber
- Timber frame (mm)
- 88
- Total depth (mm)
- 88
- Seals
- 2
- Glazing (mm)
- 32–54
- Uw / Ug (W/m²K)
- 0,76 / 0,5
| System | Material | Timber frame (mm) | Total depth (mm) | Seals | Glazing (mm) | Uw / Ug (W/m²K) |
|---|---|---|---|---|---|---|
| SOFTLINE 68 | Timber | 68 | 68 | 2 | 24–32 | 1,27 / 1,1 |
| SOFTLINE 78 | Timber | 78 | 78 | 2 | 24–44 | 0,90 / 0,6 |
| SOFTLINE 88 | Timber | 88 | 88 | 2 | 32–54 | 0,76 / 0,5 |
Source: BO Fenster 2026 brochure, pp. 3–8 and 13. Uw refers to the window, Ug to the glazing. Uw values are calculated with a thermally insulating Swisspacer spacer. Actual performance depends on dimensions, glazing and options; final specifications are provided in your quotation. DUOLINE total depths include 14 mm of aluminium cladding; seal counts follow the brochure comparison table.
SOFTLINE · the character of timber
68, 78 or 88 mm profiles in laminated pine or meranti. Custom shapes and decorative elements can suit the building, including heritage projects subject to their requirements. An aluminium profile protects the bottom of the sash.
DUOLINE · timber inside, aluminium outside
The 68, 78 or 88 mm timber profiles have an additional 14 mm aluminium cladding. Total installation depths are therefore 82, 92 or 102 mm. Exterior finishes can be selected from the RAL colour range.
Timber species & finishes
Pine and meranti with four protective coats. Opaque paints or stains that reveal the grain, including white, light oak, walnut, teak, graphite and olive green. Colours vary by timber species; confirm your selection with a sample.
Hardware & glazing
MACO MULTI-MATIC hardware with two security keeps, micro-ventilation on tilt-turn sashes and aluminium handles. Decorative or functional glazing and Swisspacer Ultimate spacers depending on configuration. Optional handles with keys or safety buttons.
Timber finishes
View data sheet · PDF (FR)Timber windows
A proposal suited to your building
Share your dimensions, photos and priorities. We will clarify the configuration and installation with you.