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A great room with a vaulted gable end and a long linen sectional, a large triangular gable window fitted with a flax shade cut to both sloping edges
Treatments

The shape is why you bought the house.

Arches, gables, angles, and circles are the windows that make a room. They are also the ones most companies quietly box over with a rectangle.

Home/Unique window shapes

Cut to the shape, not across it.

There is an easy answer to a shaped window, and it is to hang a square treatment over the whole opening and lose the shape entirely. It is cheaper, it is faster, and it undoes the one detail the architect put there on purpose.

The harder answer is to template the opening and build the treatment to it, so the arch stays an arch and the rake stays a rake. That is the work, and it is most of what this page is about.

The range

If it has a shape, we can fit it.

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A tall entry hall with warm stucco walls and a very high arched window fitted with a bone linen shade cut to the arch

Arched

A half-round or a soft segment above a square window. Covered with a shade or a shaped shutter cut to the curve, or left open with the treatment below the springline.

A bedroom under a sloping cathedral ceiling, a trapezoid window with a diagonal head fitted with a bone honeycomb shade cut to match

Angled and raked

A window whose head follows the roof, including trapezoids. The treatment is cut on the same diagonal, so the top edge sits parallel to the slope and the bottom still runs level.

A hallway with warm plaster walls and a perfectly circular window fitted with a circular white plantation shutter sitting flush inside the opening

Circular and porthole

Full circles, half circles, ovals, and octagons. A shutter built to the exact outline, usually fixed, because the shape is the point.

A great room with a vaulted gable end, a large triangular gable window fitted with a flax shade cut to both sloping edges

Triangular and gable

The peak above a wall of glass. Cut to both slopes, so the treatment reads as part of the gable rather than a box hung under it.

A bedroom with an upholstered headboard and a wide low elliptical eyebrow window above the bed fitted with a shade cut to the shallow curve

Eyebrow and elliptical

A shallow curve, wider than it is tall. The hardest outline to get right, because a small error in the sweep is obvious from across the room.

A pair of glazed French doors fitted with white plantation shutters, each panel cut out around the brass lever handle

French doors

Shutters built for the door itself, with cutouts that clear the handles and locks so the doors open and close exactly as before.

A corner where two walls of glass meet under an angled head, each face fitted with a shade cut to its own angle meeting at the corner post

Corners and bays

Not a special shape, so any treatment works here: shades, drapery, or shutters. Each face is measured separately so the treatments close cleanly at the post.

How to choose

Five questions that settle it.

Fixed or operable

The first question and the one that decides everything else. A fixed panel follows the shape perfectly. An operable one has to move, and movement wants straight lines.

FixedOperableFixed above, operable below
Where the shape breaks

On an arch or a gable there is a line where the shape meets the square part beneath it. Treating the two separately almost always looks better than forcing one treatment over both.

SpringlineTransom barOne treatment throughout
Treatment

Everything we make is custom, so there is no fixed list of shapes. Some products suit some openings better than others, and the designer walks you through those choices at the consultation.

Shaped shutterShaped shadeDrapery below
Access

Shaped windows are usually high ones. If it is out of reach, it is either fixed or motorized, and deciding that at the measure is cheaper than deciding it afterwards.

FixedExtension wandMotorized
Template

A shaped opening is templated, not measured. We take a physical pattern off the window so the curve or the angle is transferred exactly rather than calculated from numbers.

Physical templateScribed frameBuilt to the template
The honest answer

Sometimes the right move is to leave it bare.

Not every shaped window needs covering. Three cases where we will tell you to leave it alone, and what to do instead.

High and north-facing

A gable or clerestory that never takes direct sun is doing no harm. Covering it costs money, loses the light, and hides the shape. We would rather treat the windows below it properly.

Privacy is not the issue

Nobody is looking through a window sixteen feet up. If the only argument for covering it is glare, a solar shade on the glass below usually solves the room without touching the shape.

The arch is the feature

Where the shape is the reason the room works, we hang the treatment below the springline and leave the curve open. You keep the architecture and still control the light at eye level.

Have a designer look at it

A double-height stair hall with a tall window well out of reach, a bone linen motorized shade lowered two thirds
Motorization

A high window is a different question.

A tall or out-of-reach window is not a special shape, and it can take anything we offer: shades, drapery, or shutters. If you want the treatment to actually move up there, a motor is the only practical way to work it.

Lutron is our premium motorization option for shades and drapery tracks: quiet, precise, and made to work with the rest of the home.

About motorization
Questions

Before you ask us.

Can an arched window be operable? +

The arch itself, rarely. A shaped shutter panel can hinge, but it is never as clean as a fixed panel. Most of the time the arch is fixed and the square window below it does the work.

Will it cost more than a normal window? +

Yes. A shaped opening is templated rather than measured and built to a pattern, so there is more labor in it before anything is cut. The quote states it separately so you can see what the shape is costing you.

What if the arch is not a true half-round? +

Most of them are not. Segmental arches, flattened curves, and arches that are slightly out are all normal, which is exactly why we take a physical template instead of trusting a radius.

Can you match the shaped panel to the rest of the room? +

Yes, and you should. The shaped piece and the square treatment below it are specified together in the same material and finish, or the join is the first thing anyone sees.

What does it cost? +

There is no honest answer to that before we have seen the opening. The consultation and the written quote are both free, and for a shaped window the visit is the only way to price it.

How it works.

Four steps, one team, and no surprises at the end of it.

01Tell us about the room

A short conversation about the windows, the light, and how you actually use the space.

02We come to you

A designer visits and takes a physical template off every shaped opening, not just a measurement.

03Your quote, built out

The shaped work is itemized separately so you can see exactly what the shape costs.

04White-glove installation

Our own installers fit and scribe every piece, then take the packaging away.

More on shaped windows.

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Let's design your tomorrow.

Book a free in-home consultation. We will bring the samples, take the measurements, and leave you with a proper quote.