Can I Hang Blinds Outside Window Frame?
Are you struggling with a shallow window frame that can't fit standard blinds? You might be wondering,“Can I Hang Blinds Outside Window Frame?”The short answer is yes. Outside mount blinds are not only possible but often the best solution for maximizing light control, privacy, and aesthetics.
In this guide, we'll explore why homeowners choose outside mounts, the advantages and disadvantages compared to inside mounts, and how to measure correctly. By the end, you'll know exactly which mounting method suits your home—and how Graywind's custom blinds can help you achieve a perfect fit.
Why Consider Hanging Blinds Outside Window Frame?
Many homeowners assume blinds must sit inside the window casing. However, outside mount blinds are installed on the wall or trim above and around the window opening. Here's why people choose this approach:
- Lack of interior space: Shallow window frames (less than 1.5 inches deep) cannot accommodate an inside mount. Windows with inward-opening sashes, crank handles, or existing obstructions also block inside installations.
- Maximize daylight: Inside mount blinds cast shadows on the glass because they sit recessed. An outside mount sits flush against the wall, allowing the entire window to let in unobstructed light when the blind is raised.
- Better insulation & energy savings: Outside mount blinds seal against the wall, stopping hot or cold air at the window surface before it enters the room. This can reduce heat gain in summer by up to 33%.
- Conceal old or damaged window frames: If your trim is cracked, painted poorly, or simply outdated, an outside mount covers everything for an instant facelift.
- Specialty applications: Sunrooms, sliding patio doors, garages, and sidelights next to entry doors often lack a recess. Outside mount is the only practical choice.
Inside Mount vs Outside Mount: A Quick Comparison
Understanding the difference helps you decide. The table below summarizes key factors.
|
Feature |
Inside Mount |
Outside Mount |
|
Space required |
Minimum 1.5–2 inches of depth |
No depth needed; uses wall space |
|
Light leakage |
Minor gaps on sides |
Minimal to none (if measured correctly) |
|
Visual effect |
Clean, recessed look |
Makes window appear larger/taller |
|
Installation difficulty |
Moderate (requires precise fit) |
Easier (forgiving with measurements) |
|
Best for |
New, square windows with deep frames |
Shallow frames, obstructions, full blackout |
Key takeaway: Choose outside mount when you prioritize light blocking, want to hide ugly trim, or your window lacks depth.
When Is Outside Mount the Right Choice?
According to Graywind's measuring guide, you should choose an outside mount when:
- The window has insufficient depth for an inside mount.
- You want to conceal unattractive trim or imperfections.
- Maximum light blocking is a priority (e.g., bedroom, home theater).
- The frame is too shallow or fragile for drilling.
- Privacy is a key concern (no side gaps).
- You want windows to appear larger or taller.
- You prefer the shade to remain unobtrusive when fully raised.
Which Blind Types Work Best for Outside Mount?
Almost any blind can be mounted outside, but some perform exceptionally well:
|
Product Type |
Why It Works for Outside Mount |
|
Excellent insulation; seals against wall for energy efficiency |
|
|
Low profile; available in blackout fabrics |
|
|
Adds softness to large windows; hides trim well |
|
|
Ideal for patio doors; stack can sit completely outside opening |
|
|
Great for adjustable light control and modern aesthetics |
Graywind offers all these products in custom sizes with outside mount hardware included.
How to Measure for an Outside Mount
1. Check Mounting Space
Decide whether the shade will be mounted on or above the window trim and mark spot. Measure the area above the window to ensure there is enough flat surface for mounting brackets and the headrail.
2. Measure the Width
Measure from the outer edges of the window frame or trim.
For better light control, we recommend adding 2–6 inches total (1–3 inches on each side).
This adjusted width will be your ordering width.
For certain products—vertical blinds, panel track blinds, and sheer vertical blinds—you should also consider the stack, which is the space the treatment occupies when fully opened.
If you prefer the stack to sit completely outside the window opening, please allow additional width accordingly. For more details about stack options, feel free to contact Customer Service.
3. Measure the Height
Measure from the top outer frame to the bottom outer frame.
For best results, install the shade at least 3 inches above the window. Refer to the Mounting Requirements Guide.pdf for complete space requirements above the window.
Note:Total shade height includes the headrail.
Reference 1
Reference 2
Reference 3
4. Tips for Outside Mount
- Add extra width to fully cover the window and improve privacy
- Extending beyond the frame can create the illusion of a larger window.
- Ensure there is enough space above the window for mounting. See Mounting Requirements Guide.pdf for required space above the window.
- Consider extension brackets if trim or molding interferes with installation.
- Note: No deductions will be made for outside-mount orders.
So, can you hang blinds outside the window frame? Absolutely. Outside mount blinds solve problems that inside mounts can't—shallow frames, obstructed openings, poor light control, and unattractive trim. While they do have some visibility of hardware, the benefits of full coverage, better insulation, and a larger window appearance make them a smart choice for many homeowners.
If you're ready to upgrade your windows, Graywind offers custom-sized, high-quality blinds designed for both inside and outside mount applications. Follow our measuring guide above, or contact our customer service team for personalized help.
