What Are 5‑Inch Vertical Blind Slats?
Vertical blind slats (also called louvres) are normally 3.5 inches (89 mm) wide in the UK and 5 inches (127 mm) wide for the larger style.
So when someone refers to 5‑inch vertical blind slats, they’re talking about the wider 127 mm version.
1. Wider and more dramatic look
- The wider slats create a bolder, more contemporary appearance.
- Often used in larger windows, patio doors, or commercial spaces.
2. Better light control
- Because the slats are wider, they block and diffuse more light when closed.
- When opened, they let in more light compared to smaller slats because there are fewer gaps.
3. Smoother, more uniform stacking
- Fewer slats are needed to cover the same width.
- This means less visual clutter and a cleaner overall look.
Where They’re Commonly Used
- Wide patio doors
- Conservatories
- Large living room windows
- Offices or meeting rooms
- Anywhere a modern, minimal, or spacious style is desired
Are 5‑inch slats the right choice?
Choose 5‑inch slats if you want:
- A modern, premium look
- Stronger light control
- A smoother visual appearance
- Better suitability for large openings
Choose 3.5‑inch slats if you want:
- A more traditional style
- More flexibility for smaller windows