Window Treatments for Arched Windows | Creative Interior Designs
Fabric Shades for Windows with Specialty Shapes
An arched window over a front door or a trapezoid above a staircase gives a room its character, but it also creates a decorating problem that a box store cannot solve. Standard sizes come in rectangles, so anything with a curve or an angle calls for a covering built to that opening. At Creative Interior Designs, our team comes to your home and measures and installs your made-to-measure window treatments ourselves, which is what makes sure the finished product fit windows or doors of any size.

Before anyone talks fabric or color, every specialty window starts with one question: does the covering need to open? The answer narrows the options quickly, and the options change from shape to shape.
Operable or Fixed: The First Decision for Any Specialty Window
An operable treatment raises, lowers, or tilts open and closed in the the way a shade works on a standard rectangular window. A fixed, or non-operable, treatment is built to the opening and stays in place, but it does not move.
Fixed is the right call for an arch or trapezoidal shape that sits above a rectangular window or door but rarely needs to open on its own. Operable shades, blinds, or shutters make more sense when the specialty window is the main window in a space or if it provides vital direct sun and flexible privacy is also your concern.
Reach is the other factor. Hunter Douglas now offers PowerView® Automation for operable arch and angle shapes with the PowerView®+ Arch available on Duette® Cellular Shades, so a window high on a vaulted wall can open and close from a remote, a phone, or a schedule.
Specialty Shape Window Treatments, Shape by Shape
Shutters are the only product that operates on nearly every window and door shape. Here are some options you can explore for your special windows:
Arches, Semicircles, and Half-Rounds
Arches are the most common specialty shape we see in Denver homes, and they come in many versions: half circles, quarter circles, ovals, and beyond.
- If shutters are on your list, our guide to styling window treatments for arched windows walks through the three Hunter Douglas shutter lines.
- For honeycomb shades, blinds, and sheer shades in an arch, see the arched window treatments our customers ask for most.
- And for quarter circles, half-moons, and gothic arches, we compare our favorite shades for windows with curves.
Angles
Angled windows show up along vaulted ceilings, under gables, on stairwells, and in bonus rooms, and they can slope along the top of the roofline, angle up from the bottom, or both.
Angles have the widest operable list of any shape: honeycomb shades, all three shutter lines, Parkland® Wood Blinds, and Provenance® Woven Wood Shades. Motorized honeycomb cellular shades also come with headrail end caps that close the small light gap where the slope meets the frame.
For a fixed angle that complements a rectangular window or matches other coverings throughout a room, EverWood® Faux Wood Blinds or Vignette® Roman Shades come in options made from the same material to match.
Circles and Ovals
Round and oval windows are the perfect fit for Heritance® Wood Shutters and NewStyle® Composite Shutters. Their louvers that tilt inside a round frame. Most homeowners go fixed here, since a porthole or oval is usually an accent window, and options that mount outside the window frame like cellular shades, wood blinds, sheer shades, and Roman fabric options are all available as fixed window treartments.
Hexagons and Octagons
Six- and eight-sided windows tend to land in stairwells, entryways, and bathrooms, where privacy matters more than it does elsewhere. That makes operable options worth a look: honeycomb shades or any of the three shutter lines. In a bathroom, Palm Beach™ Polyatin™ Vinyl Shutters are our top pick, since the material holds up to the humidity.
Trapezoids
Trapezoids usually sit above sliding doors, in a stairwell, or on a run of windows in a great room. A fixed cellular shade in the same fabric as the honeycomb shades or matching shutters insulate that glass and keeps the room cohesive as one design.
Other Hard-to-Fit Openings
- Specialty shapes are not the only windows that stump box-store sizing. Skylights need a shade that holds its position overhead and keeps heat from escaping through the roof, which is why cellular shades make the best skylight cover in most homes.
- French doors need a covering that mounts to the door and stays clear of the handle. We break down the best French door window treatments, from Roman shades to woven woods.
- Sidelights are tall and narrow windows that fit near doors. Here is why you should cover sidelights and which shades suit them.
Custom Roman Window Shades for Specialty Openings
Fabric brings softness to a room and custom Roman window shades add architectural interest with fabrics that fold into clean horizontal pleats when raised. In any arch, angle, or trapezoid above, Vignette® Roman Shades are an excellent choice.
Cellular shades are the most flexible fabric shades for windows with offsize geometry, with operable or fixed versions for every shape above. The honeycomb structure traps air in the pleats, which helps reduce heat and cold coming through the glass on a Colorado afternoon or a January morning.
Why Specialty Shapes Need In-Home Measuring
Getting each detail right at the start is what makes the install go smoothly later.
- We measure the curve or the angle at several points.
- We check the depth of the opening to see whether an inside mount works or an outside mount fits better, and whether there is room for a motorized headrail.
- We look at how the window sits relative to trim, transoms, and any window below it, because those affect how the covering lands visually.
- We show you fabric and finish samples in the room itself, under the light that the room actually gets.
- We talk through operation, including whether you want the specialty section to open, stay fixed, or run on PowerView® Automation.
Specialty Shape Window Treatments Near Denver, Colorado
Our consultations happen in your home, on your schedule, and our installers handle the measuring and fitting from start to finish. We serve Denver and the surrounding areas, including Parker and Arvada.
Call (303) 758-5800 or contact us online to schedule a consultation. Point us to the window that has stumped you, and we will find something to fit it.
Custom Window Treatments for Custom Windows near Denver, Colorado
Our consultations happen in your home, on your schedule, and our installers handle the measuring and fitting from start to finish. We serve Denver and the surrounding areas, including Parker and Arvada.
Call (303) 758-5800 or contact us online to schedule a consultation. Point us to the window that has stumped you, and we will find the perfect fit for it.
