Veka Softline 76 is the evolutionary next step beyond classic window systems, delivering better thermal performance without a steep jump in price. With a 76 mm installation depth, it occupies the "happy medium" between entry-level 70 mm profiles and premium 82 mm systems. Its 3 mm outer walls (Class "A" per DIN EN 12608) ensure outstanding dimensional stability and long-lasting weld seams.
The wider build accommodates broader, warmer glass units up to 48 mm thick, markedly boosting acoustic insulation and heat retention in the home. Slim visible profile sections (mullions) let in as much daylight as possible, making rooms feel more open and spacious. It is the perfect solution for glazing modern cottages and apartments that demand high energy efficiency.
Brand
Veka — one of the oldest and largest PVC profile manufacturers in the world. The company is known for its signature Softline design with rounded edges and consistently high quality. If you're looking for reliable windows with a classic look — Veka is an excellent choice.
More about VEKATechnical Specifications
Today's energy-efficiency benchmark. At 76 mm and Class "A", it strikes an ideal balance between thermal insulation and the amount of daylight it lets through.
Engineering Specifications:
Glazing and Infill Choices:
Profile Geometry and Sizes (Window):
Tested Performance (according to DIN EN 14351-1):
Today's energy-efficiency benchmark. At 76 mm and Class "A", it strikes an ideal balance between thermal insulation and the amount of daylight it lets through.
For a standard 2-sash tilt-and-turn window (1200 × 1400 mm) with basic double-glazed unit.
Alternative solutions from other manufacturers
Side by side
How Veka Softline 76 stacks up against the closest matches from other brands.
| Specification | Veka Softline 76This profile | WDS 76 AD (76 mm) | Rehau Brillant-Design 80 | Kömmerling EuroFutur Elegance |
|---|---|---|---|---|
| Brand | VEKA | WDS | REHAU | Kömmerling |
| Material | PVC | PVC | PVC | PVC |
| Profile depth | 76mm | 76mm | 80mm | 70 mm |
| Chambers | 5 chambers | 5 chambers | 6 chambers | — |
| Glass unit, max | up to 48mm | up to 48mm | up to 44mm | up to 39 mm |
| Thermal (Uw) | 1.1 | 1.1 | 1.1 | ≤ 1.1 |
| Sound (Rw, dB) | ≈47 Rw(dB) | ≈46 Rw(dB) | ≈45 Rw(dB) | ≈ 40 Rw(dB) |
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FAQs
It is a 76 mm, 5-chamber Class "A" section (DIN EN 12608) with 3 mm outer walls and a 112 mm combined height. A galvanized steel insert in a closed square chamber gives high sectional inertia, and the two- (AD) or three-line (MD) swappable gasket sealing brings the frame to Uf 1.1 W/m²K and a window Uw ≤ 1.1 W/(m²·K).
The system takes infills up to 48 mm seated in a 25 mm glazing rebate, versus the market-typical 18–20 mm. That extra depth tucks the spacer bar fully behind the profile plastic, creating a "warm edge" that removes the cold bridge along the glass edge and cuts the risk of edge condensation in freezing weather.
It is the mid-tier energy benchmark:
Tested to DIN EN 14351-1, it reaches intrusion classes RC2 and RC3, with hardware striker plates anchored into the steel reinforcement and the thick Class "A" walls giving screws a firmer grip. Watertightness is rated Class 9A, and the expected service life is over 50 years.
With thick acoustic laminated glass the system reaches an acoustic rating of up to 47 dB (Rw) — matching the deeper Softline 82 and ahead of the Softline 70's ≈45 dB. That figure is the ceiling for this profile; the 47 dB depends on specifying the right laminated acoustic glazing, not the frame alone.
Thanks to the higher sectional inertia of its closed steel-reinforced square chamber, Softline 76 permits larger sash dimensions than the 70 series. Reinforcement articles are shaped to the chamber geometry with minimal plastic-to-metal clearance for maximum rigidity. Heat resistance R0 is 0.85–0.95 m²°C/W, and aluminium cladding is available for the facade.
