Glass floor over a wine cellar: a technical case
Full breakdown of a real project: materials, load calc, lighting, climate. Real prices and timing.
Wine cellar in a basement runs at +14 °C / 65% humidity. A glass floor above it makes the cellar visible from the living area while preserving climate. Real project near Sestroretsk: 4.5×0.9 m corridor, two glass spans.
01Build
Glass: 6+6+8 mm with two 0.76 mm PVB films. 22 mm package, 600 kg/m² point load.
Frame: 80×40 mm steel with thermal break — prevents condensation underneath.
Anti-slip: R11 sandblast pattern, invisible from above, grippy barefoot.
02Cellar lighting
3000K LED strip around each shelf perimeter. Indirect — direct light creates glare through the glass. Soft golden fill highlights the bottles, creating an "amphora" effect from above.
03Real case prices
| Item | Cost |
|---|---|
| 6+6+8 PVB laminated, 4 m² | 96 000 ₽ |
| R11 anti-slip coating | 14 800 ₽ |
| Steel frame with thermal break | 54 000 ₽ |
| LED + PSU | 22 400 ₽ |
| Engineer calc (SP 20.13330) | included |
| Measure, delivery, install | 38 600 ₽ |
| Total | 225 800 ₽ |
Lighting works "by scenario": guests arrive — switch on the cellar light, floor glows from below. Empty house — light off, floor is just black. This single feature changes the perceived function.
04This service at REAL GLASS
If you've read this far, the topic is probably relevant to a real project. We make glass floors in-house in St. Petersburg, with a measure within 1–3 days, 1-year warranty and a fixed contract price. All numbers in this article come from our actual 2026 quotes.
For a project-specific estimate — see the service page or request a free on-site measure.
