WDS SL 60 — The ideal answer for Spanish balconies and loggias (Galerías). Where a hinged window "swallows" valuable space, a sliding system is a must. The sashes glide alongside one another, leaving clotheslines, cabinets, and windowsill plants undisturbed.
Why it beats ordinary aluminum:
The top pick for glazing unheated areas, summer verandas, or partitioning kitchen and laundry spaces.
Brand
WDS — modern window systems combining European quality and affordable prices. The manufacturer uses German technology and strict quality control, offering a wide range of profiles: from economical 5S to flagship 8S at Passivhaus level.
More about WDSTechnical Specifications
Save space. A sliding PVC system that runs warmer and quieter than dated aluminum.
Engineering Specifications:
Largest Sizes:
Glass Filling:
Documentation
Save space. A sliding PVC system that runs warmer and quieter than dated aluminum.
For a 2-panel sliding system (3000 × 2200 mm) with basic double-glazed unit.
Alternative solutions from other manufacturers
Side by side
How WDS SL60 stacks up against the closest matches from other brands.
| Specification | WDS SL60This profile | Rehau High-Design Slide | Kömmerling PremiLine | Cortizo C 70 |
|---|---|---|---|---|
| Brand | WDS | REHAU | Kömmerling | Cortizo |
| Material | PVC | PVC | PVC | PVC |
| Profile depth | 60 mm | — | 80 mm (frame) | — |
| Chambers | 3 chambers | — | — | — |
| Glass unit, max | up to 18 mm | up to 24mm | up to 28 mm | up to 28 mm |
| Thermal (Uw) | 1.6 | 1.5 | ≤ 1.3 | ≤ 1.3 |
| Sound (Rw, dB) | ≈30 dB | — | ≈ 34 Rw(dB) | ≈ 34 dB |
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FAQs
The WDS SL60 is a 3-chamber parallel-sliding PVC system. Mounting depth is 60 mm for the 2-track layout and 106 mm for the 3-track layout. It carries a B energy rating with Uw ≤ 1.6 W/(m²·K) thermal protection and roughly 30 dB sound insulation. Weatherstripping is a brush seal with dedicated inserts that fend off dust and noise.
The sashes take infill up to 18–20 mm — either single glass (4–6 mm) or a single-chamber glass unit. We'd recommend the glass unit, since it cuts street noise considerably compared with plain glass while staying within the 60 mm profile's capacity.
Each sash can run up to 100 kg. Top sash dimensions are:
We build constructions with 2, 3, 4 or even 6 sashes. Because it's a parallel-sliding system, layouts are available where every sash slides to one side, clearing about 2/3 of the opening without any sash swinging into the room — ideal for tight balconies and terraces where space matters.
It seals with brush strips (felt) rather than rubber pressure seals. That keeps out rain and wind well but won't match the full airtightness of a casement window. For main living rooms a casement profile such as WDS 76 MD is the better choice; reserve the SL60 for balconies, loggias and terraces where space saving comes first.
Both slide, but the SL76 is the airtight (Smart) tier. By the numbers:
