Choosing window treatments isn’t just about colors or materials—it’s also about how your blinds are mounted. One of the most commonly overlooked yet crucial questions when shopping for blinds is: Do blinds look better inside or outside the window frame? The answer depends on your space, style preferences, and functional needs.

In this in-depth guide, we’ll break down the key differences, the pros and cons of each option, and help you decide which mounting style is best for your home.

Understanding the Difference Between Inside and Outside Mount Blinds

Before diving into aesthetics and functionality, it’s essential to understand what each type of mount actually means.

• Inside Mount: Blinds are installed within the window frame, sitting flush with the opening.

• Outside Mount: Blinds are mounted above or beyond the window frame, covering a larger area than just the glass.

The choice isn’t just about where the brackets go—it impacts how the blinds look, how they function, and how well they control light and privacy.

Pros and Cons of Inside Mount Blinds

✅ Clean, Minimalist Look

One of the biggest draws of inside mount blinds is their sleek appearance. They fit neatly within the window frame, making them almost appear built-in.

“The first time I saw inside mount blinds, I instantly loved how sleek they looked. They sit neatly inside the window frame, so they don’t stick out into the room. This makes the space feel more open and uncluttered.”

This makes them a top pick for rooms with a modern or minimalist aesthetic.

✅ Keep the Sill Clear

Inside mounts allow full use of your window sill. Whether you’re displaying candles, plants, or photos, the blinds won’t get in the way.

“I was able to keep using the window sill for decoration — candles, succulents, little photo frames — and the blinds didn’t interfere with any of it.”

❌ Less Light Control

The biggest drawback? Gaps.

Because the blinds are fitted inside the frame, small gaps can let in light around the edges. While that may not bother everyone, it’s a dealbreaker for those who prefer total darkness.

“The only issue I noticed was that a small amount of light still seeped through the sides, especially in the morning. For me, it wasn’t a big deal. But if you’re sensitive to light, it’s something to keep in mind.”

❌ Frame Depth Required

You’ll need a deep enough frame to support the brackets and the full mechanism of the blinds. Shallow window frames may not be compatible.

Pros and Cons of Outside Mount Blinds

✅ Superior Light Blocking

If you’re looking to block out every last ray of sunlight, outside mounts are the better choice.

“In my bedroom — where I really needed to block out light — I went with outside mount blinds. The difference in light control was huge. No more side light slipping in around the edges.”

These blinds extend beyond the frame, creating a better seal around the window and improving both privacy and light management.

✅ Make Windows Appear Larger

An outside mount can create the illusion of a bigger window, especially when the blinds are extended wider and higher than the actual frame.

“I liked how the outside mount made my small bedroom windows look bigger. Visually, it gave the illusion of taller, more substantial windows.”

This is a useful trick in small or dark rooms that need a sense of openness.

✅ Ideal for Shallow or Obstructed Frames

Some window frames aren’t deep enough for inside mounts—or they have cranks, levers, or unusual trim.

“In my home office, the window frame was too shallow to fit a proper inside mount, so it wasn’t even an option. The outside mount gave me flexibility and still looked polished once everything was installed.”

❌ More Visually Prominent

Because outside mounts extend past the window trim, they’re more noticeable. This may be a negative if you’re aiming for a subtle, streamlined look.

❌ May Obstruct Wall Decor or Shelving

Depending on placement, outside-mounted blinds can overlap with nearby furniture, art, or shelving.

Factors to Consider When Choosing Your Mounting Style

There’s no one-size-fits-all answer. Instead, consider the following factors to guide your decision:

🔆 Light Control

• Go with outside mount if complete darkness or minimal light leakage is essential—ideal for bedrooms, media rooms, or nurseries.

• Choose inside mount if some ambient light is acceptable or desired, especially in living areas or kitchens.

📏 Window Frame Depth

• Measure carefully. Inside mount requires sufficient depth to support the headrail.

• If your window frame is less than 1½ inches deep, outside mount may be your only viable option.

“Frame Depth: If your window frame is too shallow, outside mount may be your only choice.”

🛋️ Room Functionality and Usage

• Living rooms often benefit from inside mounts, especially when you want to use the sill or have furniture near the window.

• Bedrooms and offices may demand outside mounts for better blackout potential and visual balance.

“Functionality: Think about how you use your space. If you need to keep the window sill clear, inside mount is ideal.”

🎨 Visual Impact and Style

• Inside mount suits clean, modern aesthetics.

• Outside mount can create a more traditional or dramatic statement.

“Aesthetic Preference: Inside mounts give a minimal, built-in look. Outside mounts are bolder and can make windows seem larger.”

Real-Life Scenarios: When Each Mount Works Best

Let’s explore practical examples where each type truly shines:

🛋️ Living Room: Inside Mount for Elegance and Space

If your living room includes shelves, plants, or decorative trim, an inside mount preserves that look.

“In my living room, I already had floating shelves and plants close to the windows. The inside mount kept everything tidy and harmonious.”

🛏️ Bedroom: Outside Mount for Blackout Efficiency

Want to sleep in without morning light waking you up? Outside mount is your best friend.

“No more morning light creeping in. My sleep quality actually improved once I switched.”

🧑‍💻 Home Office: Outside Mount for Flexibility

Small or oddly shaped windows often can’t accommodate inside hardware. That’s when the outside mount saves the day.

Installation Insights and Practical Considerations

Installing blinds isn’t just about aesthetics—it’s about compatibility and usability.

Tools and Measurements

• For inside mounts, measure the width and height inside the frame.

• For outside mounts, measure the desired coverage area, including overlap for better light control.

Mounting Hardware

Each style requires different brackets and anchoring points. Some blinds include templates for easier installation.

Professional Installation or DIY?

• Inside mounts require precision. Even a half-inch error can affect fit.

• Outside mounts are generally more forgiving and easier for first-time installers.

Final Thoughts: The Blind Mount Decision That Changed My Home

Choosing between inside and outside mount blinds wasn’t something I initially thought would matter—but it did. It affected the comfort, style, and even the perception of space in every room.

“Now, every time someone asks me about buying blinds, I make sure to mention mounting style as a big part of the decision-making process. It’s not just about looks — it affects how your blinds function day to day. I’m glad I took the time to learn the difference. It’s one of those little details that makes a big impact in how your home feels.”

So, do blinds look better inside or outside the window frame?

It depends.

But now you’re equipped to answer that question for your own home—and to make a choice that’s not just about looks, but about how you live.