
Bay and arched windows look incredible but they are a pain to cover. Here is what actually works for these tricky window shapes, from someone who has measured thousands of them.
Bay windows and arched windows need a different approach
Standard blinds are built for standard rectangles. Bay windows and arched windows are anything but standard, and that is where most homeowners run into trouble. The wrong product choice means awkward gaps, uneven lines, and blinds that fight against the window shape instead of following it.
We have been fitting blinds on specialty windows across the GTA for over 30 years, and these are the setups that actually look good and work well long term.
Bay windows: understanding what you are working with
Bay windows come in a few configurations, and the type you have determines your best blind option.
Common bay window layouts:
- Three-panel bay with a large centre window and two angled sides (most common in GTA homes)
- Five-panel bay with more gradual angles
- Box bay with 90-degree corners instead of angled sections
- Bow windows with a gentle curve made up of four or more narrow panels
Each section of a bay window is its own measurement. The angles between panels can be 90, 120, 135, or 150 degrees depending on the construction. This matters because some blind types handle angles better than others.
Best blind options for bay windows
Roller blinds (our top pick for bay windows)
Roller blinds work well in bay windows because each section gets its own independent blind that sits flush inside the frame. They do not interfere with each other, and the slim profile keeps the bay area open and usable.
Why they work:
Zebra blinds
Zebra blinds are another strong choice. The dual-fabric design gives you light control without raising or lowering the blind, which is helpful when your bay window has a window seat or you do not want to reach across furniture.
Why they work:
Vertical blinds for large bay windows
If your bay window sections are wide (over 48 inches each), vertical blinds are worth considering. They draw to the side rather than rolling up, which is easier on very wide spans.
Arched windows: the real challenge
Arched windows (also called half-round or eyebrow windows) are where things get genuinely tricky. The curved top does not lend itself to any standard blind shape, and a bad solution is worse than no covering at all.
Option 1: Cover just the rectangular section
The simplest and often best-looking approach is to leave the arched top uncovered and install a blind that covers only the rectangular lower portion. The arch stays as a design feature, and you get functional privacy and light control where you need it most.
This works well when:
Option 2: Custom-shaped blinds for the full window
For full coverage, you need a blind cut to match the exact arch shape. This requires a template of your window (we trace it during the in-home visit) and a manufacturer that handles custom shapes.
Products that can be shaped for arches:
- Cellular/honeycomb blinds are the most common choice for arched sections. They fan out from a centre point to follow the curve.
- Shutters can be built with a curved frame to match the arch exactly.
Option 3: Motorized solutions for hard-to-reach arches
Many arched windows are above standard reach. If your arched window sits high on a wall or in a vaulted ceiling area, motorized operation is not a luxury but a necessity. A battery-powered motor with a remote lets you control the blind without a ladder.
Measuring specialty windows: do not guess
Bay and arched windows are the measurements we see go wrong most often. Here is why:
Bay window pitfalls:
Arched window pitfalls:
We strongly recommend professional measurement for these window types. A standard rectangle has four measurements. A three-panel bay window has twelve. An arched window needs a full template. The margin for error is thin.
Pricing considerations
Bay windows and arched windows cost more to cover than standard windows. You are paying for:
The good news is that these are the windows guests notice most. Well-fitted blinds on a bay or arched window make a strong visual impact.
What about curtains for bay and arched windows?
Curtains are an option, but they have drawbacks for these window shapes. On bay windows, a curtain rod needs to follow the angles, which means custom bending or multiple rods with brackets at each junction. On arched windows, curtains typically hang straight and cover the arch entirely, which defeats the purpose of having an architectural feature.
Blinds give you a cleaner result because each one is sized to its specific section.
Why Blinds Planet?
We measure and install blinds on bay and arched windows every week across the GTA. Here is what you get:
Ready to tackle those tricky windows?
Bay and arched windows are worth getting right. They are focal points of your home, and the right blinds make them look even better.
Call us at (416) 890-4554 or request a free quote online. We will come to you with samples and take exact measurements so there are no surprises.
Related Products
About the Author
Sarah Mitchell
Window Treatment Specialist
Sarah Mitchell is a window treatment specialist with over 30 years of experience in the window coverings industry. As part of the Blinds Planet family legacy since 1992, she helps homeowners select, customize, and install the perfect blinds for their spaces.