Bay Window Treatments: Ideas & Inspiration for Your Kansas City Home
The looks worth copying, and the measurements that decide whether you can have them.
A bay window is the best seat in the house and the hardest window in the house to cover. Homeowners send us photos of bay window treatments they love, and about half the time the product in that photo will not physically fit their bay. Not because of style. Because of geometry. The outer wing windows in a bay sit very close to the center window, and every blind or shade has a headrail with real depth to it. Get that depth wrong, and the two headrails hit each other in the corner before either one is fully open.
Why Bay Windows Are Trickier Than They Look
Three things determine what will work in your bay. Every conversation we have about it starts here.
Depth of the window opening. If we can get the shade down inside the window opening, your options open way up. Shallow openings force us out onto the trim, and that changes the product list immediately.
The angle of the bay. There are two common bay angles, and they do not behave the same. A wider 135-degree bay gives the corners room to breathe. A tighter angle brings the wings in close to the center, and plenty of products simply will not work there because the headrails are too thick to sit next to each other.
Headrail depth of the product itself. This is the spec nobody shops for and everybody should. A chunky headrail in a tight bay creates odd gaps between the shades, an unusual amount of light leaking through those gaps, and a look that reads wrong the second you walk in the room.
When someone tells us their last set of bay window coverings “never looked right,” it is almost always one of those three.
Inside Mount vs. Outside Mount Window Treatments for Bay Windows
This is the first real decision, and it drives everything after it.
Inside Mount is the Goal
Inside mount means we set the blind as far inside the trim work as we can get it. It is the best option for a bay window for one specific reason: the deeper we sit inside the opening, the more room the two headrails have, so they never come close to touching at the top. You also get clean sightlines, and your trim stays visible, which matters when the trim is part of why you liked the bay in the first place.
When the Bay is Too Shallow, We Go Outside and Get Selective
Some bays just do not have the depth. When we have to mount outside, the product choice stops being a preference and becomes a requirement. We steer toward a very narrow headrail so we can mount the treatments close to edge to edge and still get full coverage across the bay without the headrails interfering with each other.
Two that consistently solve this:
- Honeycomb shades have one of the slimmest headrails available, plus they insulate, which is worth something on a Kansas City bay window in January. More on that on our energy-efficient window treatments page.
- Woven wood shades give you a narrow headrail with texture and warmth, which reads more like a design choice than a workaround.
The Best Window Coverings for Bay Windows
Plantation Shutters
Shutters work beautifully in a bay, and there is a structural reason why. The framing on a shutter tapers down at the edges. That taper lets us mount the frames right next to each other in the corners of the bay, so you keep the architecture of the bay window intact instead of fighting it. You end up with privacy, real light control, and a finished look that follows the shape of the window.
If your bay is a permanent feature of the room and you want the treatment to look built-in, plantation shutters are usually where we land.
Honeycomb Shades
Slim headrail, strong insulation, and available cordless. Good for bays in bedrooms and family rooms, and a solid pick when the bay is shallow. Pair with top-down, bottom-up operation if the bay faces the street and you want light without putting the living room on display.
Woven Wood Shades
Texture across three openings looks intentional in a way flat fabric sometimes does not. Narrow headrail makes them outside-mount friendly. Add a liner if the bay is in a bedroom.
Sheer Shades
If the whole point of the bay is the view, sheer shades let you keep it. You get daytime privacy and UV protection without blacking out the reason you bought the house.
Roman Shades
Custom Roman shades bring softness to a bay without the bulk of full drapery. Worth checking depth carefully on these, since the stack at the top takes up room.
Custom Drapery on a Bent Rod
Sometimes a client wants drapery in the bay and will not be talked out of it, and honestly, they are often right about the look. Here is how we make it work. We install a custom bent rod, or a rod with elbow brackets, so the drapery can travel around the bay as one continuous run. If you would rather have distinct panels, we can also do individual drapery panels for each set of windows within the bay, using a rod with an elbow joint at each corner.
Either way, you get real fabric on a bay window without the hardware fighting the angles. See more on our custom window treatments page.
Bay Window Treatment Ideas Worth Copying
- Match the treatment across all three openings. Different products on the wings and the center almost always look accidental.
- Shutters below, nothing above. If the bay has transoms or an arch, leave the top uncovered and let the shape show. We handle those separately on our angled and arched window treatments page.
- Layer shades with stationary side panels. Shades handle the function; panels at the outer edges frame the bay and soften the corners.
- Add motorization when the bay has a window seat. Reaching across a bench to pull three shades gets old fast. Motorized shades put all three on one command.
- Woven woods for a bay with a big view. Texture without visual weight.
- Go one shade wider on the center window. A slightly wider center reads more balanced than three identical widths when the wings are angled.
Want to see these in real Kansas City homes? Browse our design portfolio.
Why Homeowners Bring Their Bay Windows to One Stop Decorating
- We measure the angle, not just the width. Most quotes never account for bay angle. It is the single most common reason bay window coverings come back wrong.
- We know the headrail specs by heart. We can tell you on the spot whether a product will clear your corners, before you order it, not after it arrives.
- Three Kansas City showrooms and 30 years in this market. Overland Park, Shawnee, Lee’s Summit, with service available in Kansas City North and the surrounding Northland. We have measured bays in Brookside bungalows, Leawood new builds, and everything between.
- Our own installers. The people who install your treatments work for us. Bay windows reward experience, and we do not hand yours to a subcontractor who has never done one.
- Full access to Hunter Douglas and Alta by Hunter Douglas. When your bay needs a specific headrail depth, having the whole catalog available means we solve it with the right product instead of the closest available one.
How We Get Bay Window Coverings Right
1
Free in-home consultation
We come to you because a bay window cannot be evaluated over the phone or from a photo. We bring samples, so you see fabric and finish in your bay’s actual light, which changes a lot depending on whether it faces north or west. Book a consultation here.
2
Measure and quote
We measure the unobstructed depth and angle of your bay, then map where the headrails will land in each corner. If two products would collide, you find out at your kitchen table instead of on install day. Every opening is measured on its own to the eighth of an inch, and you get a detailed quote before anything is ordered.
3
Professional installation
Our own installers set each treatment, working corner outward so the bay stays aligned. Nothing gets handed to a subcontractor who has never done a bay before.
4
Final walkthrough
Before we leave, we check operation across the full bay and confirm every treatment clears, aligns, and closes evenly. Then we walk you through how to use each one.
Bay Window Treatment FAQs
What is the best window treatment for a bay window?
Should bay window blinds be inside mount or outside mount?
Inside mount whenever the opening is deep enough, since sitting further inside the trim keeps the headrails from meeting in the corners. Outside mount is the fallback for shallow bays, and it works well as long as you choose a slim headrail product. We confirm which one your bay can take during the measure.
Do you use one blind or three on a bay window?
Three, one per opening, in nearly every case. A single wide treatment spanning the whole bay covers the angles rather than following them, which flattens the architecture you paid for. Separate treatments also let you control light differently on the sunny wing.
Can you put plantation shutters in a bay window?
Yes, and they are one of the best fits available. The shutter frame tapers at the edges so frames can sit directly beside one another in the corners of the bay. You can see the full lineup on our plantation shutters page.
Can you hang curtains on a bay window?
Yes. We use a custom bent rod or a rod with elbow brackets so panels can travel around the entire bay, or we install separate panels for each section using elbow joints at the corners. Standard straight rods do not work here, which is why off-the-shelf hardware usually disappoints.
Why do my bay window shades have gaps between them?
Almost always because the headrails are too deep for the angle of your bay, so the treatments cannot sit close enough together. That gap lets in an unusual amount of light and is very noticeable at night. Switching to a narrower headrail product typically solves it.
How long do custom bay window treatments take?
Most custom orders arrive within a few weeks of measuring, then we schedule installation. Bay windows are custom by definition, so nothing here is off the shelf. We give you a timeline at your consultation.
Get Bay Window Treatments That Actually Fit Your Bay
Bring us your bay. Send a photo, stop into one of our three Kansas City area showrooms, or schedule your free in-home consultation, and we will tell you exactly what will fit before you spend a dollar. Call One Stop Decorating today for a free quote on bay window treatments that fit your angles, your depth, and your view.