Roller shutter - RL 28 Walnut
/Roller shutter
External roller shutter for windows in walnut The wooden colour is very durable and does not require frequent renewal, which makes it an ideal choice for people who are looking for a durable and easy to maintain solution. It is worth noting that the wooden colour is also very practical, because it is easy to match with various furniture and accessories, which allows you to easily and quickly change the interior arrangement.
Roller shutter




Order over GBP 5000, the parcel will be FREE.
The cost of shipping orders worth up to GBP 5000 is GBP 29.90

Roller shutters in the Knall store
Thanks to many years on the market, Knall has extensive experience in the production of a wide range of custom-made window coverings. One of our specialties are roller shutters. They are some of the most recognizable window covering systems on the market.

Perfect fit
External roller shutters play an important role – they protect your interiors from excessive sunlight, noise, and heat loss. To perform their function effectively, they must fit the window precisely. At Knall, every shutter is made to measure based on the exact dimensions you provide when placing your order. This ensures that your product fits the window frame perfectly and works flawlessly.
You can choose between manual operation – using a cord or strap – and electric operation, which offers even greater convenience. With an electric system, you can raise and lower the shutter at the touch of a button – ideal for large glazing areas.
All our external roller shutters are made to measure, ensuring a perfect fit and full functionality for your windows.

Blinds characteristics
- Thanks to the wide range of colors, they are perfectly matched to the appearance of the building
- Excellent thermal and sound insulation
- Significant improvement in the energy balance of the building
- In cold season and winter they significantly reduce heating costs
- In the summer they provide pleasant coolness and twilight giving rest to tired eyes
- They protect privacy and ensure peace
- Made of selected materials, guaranteeing their highest quality
- Application to facilities under construction as already existing
- They are made of high quality aluminum sheet and can be used as a stylish external security applications
- Available in many colors
- Control manually or via an electric drive with a control system, allows for their comfortable operation
- 2 years warranty also when using them as a garage door
- Round and polygonal boxes are not available in wood-like colors
- Insulated roller shutters will lower heating bills over time
How to order?
It is incredibly easy to buy in the Knall shop. Just fill in the required parameters of the product and add it to the cart. In order not to make a mistake, it is best to follow our instructions, which are under the question marks in the upper right corner of each checkbox. Before adding a product to your cart, you can always see its current price under the central photo.
Installation of blinds
See how to mount external blinds.
How to measure the window?
Check how to measure the window correctly so that the roller shutter fits perfectly.