Installing a 120 Roller Blind on a double – hung window is a practical and stylish way to enhance the functionality and aesthetics of your space. As a supplier of 120 Roller Blinds, I’ve seen firsthand the transformative power these blinds can have on a room. In this blog, I’ll guide you through the step – by – step process of installing a 120 Roller Blind on a double – hung window, sharing tips and tricks along the way. 120 Roller Blind

Understanding the Basics
Before we start the installation, it’s essential to understand the components of a 120 Roller Blind. A typical 120 Roller Blind consists of a roller tube, which holds the blind fabric, a mechanism for raising and lowering the blind, and mounting brackets. The 120 in the name refers to the width of the blind, which is a standard size suitable for many double – hung windows.
Tools You’ll Need
To install your 120 Roller Blind, you’ll need the following tools:
- A measuring tape: This is crucial for accurate measurements of your window opening.
- A drill: You’ll use this to make holes for the mounting brackets.
- Screwdriver: To attach the brackets and other components.
- Pencil: For marking the position of the brackets on the window frame.
- Level: To ensure that the blind is installed straight.
Step 1: Measure Your Window
The first step in installing a 120 Roller Blind on a double – hung window is to measure the window opening accurately. You need to measure both the width and the height of the window.
- Width: Measure the width of the window opening at the top, middle, and bottom. Record the narrowest measurement as this will ensure a proper fit. For a 120 Roller Blind, the width should be close to 120 units (the specific unit depends on the measurement system used, usually inches or centimeters).
- Height: Measure the height from the top of the window opening to the sill. You may need to adjust this measurement depending on whether you want the blind to cover the entire window or just a portion of it.
Step 2: Choose the Mounting Method
There are two main mounting methods for roller blinds: inside – mount and outside – mount.
- Inside – mount: This involves installing the blind inside the window frame. It gives a clean and flush look. To install inside – mount, make sure the window frame is deep enough to accommodate the roller tube and the brackets.
- Outside – mount: This is suitable when the window frame is not deep enough or if you want to cover a larger area. You’ll mount the blind on the wall above or beside the window.
Step 3: Prepare the Mounting Brackets
Once you’ve chosen the mounting method, it’s time to prepare the mounting brackets.
- Inside – mount: If you’re doing an inside – mount, place the brackets inside the window frame at the top. Use a level to ensure they are straight, and mark the positions with a pencil. Then, drill holes in the marked positions and attach the brackets using screws.
- Outside – mount: For an outside – mount, measure and mark the positions on the wall where you want to install the brackets. Make sure they are level and at the right height. Drill holes and attach the brackets.
Step 4: Install the Roller Tube
After the brackets are in place, it’s time to install the roller tube.
- Carefully place the roller tube into the brackets. Most roller tubes have a locking mechanism that allows you to secure them in place. Make sure the tube is properly seated and can rotate freely.
- If your roller blind has a cord or chain for operation, thread it through the appropriate holes in the tube and the mechanism.
Step 5: Attach the Blind Fabric
Once the roller tube is installed, it’s time to attach the blind fabric.
- Most 120 Roller Blinds come with a pre – attached fabric to the roller tube. If not, you’ll need to carefully attach the fabric to the tube according to the manufacturer’s instructions. Make sure the fabric is straight and evenly distributed on the tube.
Step 6: Test the Blind
After the blind is installed, it’s important to test it to make sure it works properly.
- Raise and lower the blind using the cord or chain mechanism. Check for any signs of binding or uneven movement. If you notice any issues, adjust the roller tube or the mechanism as needed.
Step 7: Final Adjustments
Once the blind is working properly, make any final adjustments.
- Use a level to double – check that the blind is straight. You may need to adjust the brackets slightly to ensure a perfect alignment.
- Trim any excess cord or chain if necessary.
Tips and Tricks
- Measure twice, cut once: Accurate measurements are crucial for a proper fit. Take your time to measure the window opening multiple times to avoid mistakes.
- Use a template: If you’re unsure about the placement of the brackets, you can use a template provided by the blind manufacturer. This will ensure that the brackets are installed in the correct positions.
- Follow the manufacturer’s instructions: Every 120 Roller Blind may have slightly different installation instructions. Make sure to read and follow them carefully to ensure a successful installation.
Why Choose Our 120 Roller Blinds

As a supplier of 120 Roller Blinds, we offer a wide range of high – quality blinds that are designed to meet your needs. Our blinds are made from durable materials and come in a variety of colors and patterns to match your decor. We also provide excellent customer service to ensure that you have a smooth installation process.
Rain Awning If you’re interested in purchasing our 120 Roller Blinds or have any questions about installation, please feel free to contact us. We’re here to help you transform your windows and enhance your living space.
References
- "Window Treatments Installation Guide" – A comprehensive guide on installing various window treatments.
- Manufacturer’s instructions for 120 Roller Blinds.
Guangdong Fanxi Youpin Intelligent Technology Co., Ltd.
We are one of the most professional 120 roller blind manufacturers and suppliers in China, also support customized service with low price. We warmly welcome you to buy high quality 120 roller blind for sale here from our factory. If you have any enquiry about pricelist, please feel free to email us.
Address: No. 22-2 Of Xiaodong Industrial Zone, Xiaodong Second Economic Society, Yanfeng Community, Shishan Town
E-mail: SunnyChueng@fshpyp.cn
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