Blackout or Room Darkening: Where to Spend the Extra Money

Brownsburg Window Treatments · 2026-09-08

Deciding between blackout and room darkening usually comes down to money as much as light control, since one costs noticeably more than the other for a reason worth understanding before you order.

What Blackout and Room Darkening Actually Mean

From a construction standpoint, blackout and room darkening aren't two ends of the same fabric, they're built differently from the start. Blackout fabric is engineered specifically to stop light from passing through the material, full stop. Room darkening fabric is built to reduce light substantially, usually blocking somewhere in the 95 to 99 percent range, without going all the way to fully opaque.

That's a manufacturing decision made before the fabric ever reaches a workroom, not something that varies much by brand. Once you know which spec you're buying, you know roughly what to expect from the material itself.

What you don't automatically know is how dark your specific room in Brownsburg will actually get, since the mount and the window itself play just as big a role as the fabric does.

Which Rooms Call for Which Option

Where you spend the extra money for blackout matters more than whether you spend it at all in a Brownsburg home. A primary bedroom, especially a west-facing one or a shift worker's room, is usually worth the upgrade. A guest room that gets used a handful of nights a year is a much easier place to stick with room darkening and save the difference.

Kids' rooms are a personal call rather than a clear budget answer, since some parents want the total darkness for nap time and some prefer the softer glow of room darkening on purpose. Either way, it's worth deciding room by room instead of applying one fabric grade to the whole house by default.

Media rooms and home theaters are the other space where blackout is usually worth the price, simply because the room doesn't function the way it's meant to without it.

How the Fabric and Construction Differ

The construction difference is where the price and the performance both come from. Blackout fabric typically has three layers laminated together: the face fabric, a foam or acrylic middle layer, and a backing, sometimes with a fourth layer added for extra opacity. That lamination is what makes the material fully opaque even held up against a bright light.

Room darkening fabric usually skips one of those layers, often relying on a napped or foam-backed liner rather than full lamination. It's lighter and folds more compactly than blackout fabric, and that lighter build costs less to produce, which shows up directly in the price.

The heavier construction of blackout fabric has a side effect worth knowing about: it also blocks more outside noise and holds more heat than a lighter room darkening fabric would, for better or worse depending on the season and the room. It's a reasonable bonus in a bedroom and less of one in a sunroom you want warmed by the winter sun.

Price Difference Between Blackout and Room Darkening

As a general national range, room darkening cellular or roller shades for a bedroom typically run $100 to $300 per window. Blackout versions of the same product usually cost somewhere between $130 and $380, generally 15 to 25 percent more, due to the extra fabric lamination.

Upgrading the mount, a wider outside mount or side channels for a fuller light seal, adds a bit more on top of the fabric cost itself, though it's often a smaller add than the jump from room darkening to blackout fabric in the first place.

For a primary bedroom where sleep is the priority, most Brownsburg homeowners find the extra cost of blackout worth it. For a guest room or a kid's room where the priority is softer, room darkening is a reasonable place to save. A free in-home measure will price both out for the specific rooms you're working with.

Working out where blackout is worth the extra cost and where room darkening does the job just as well is easiest room by room, with real measurements in hand. A free in-home measure is a low-pressure way to get there. Call (317) 999-5154 to set one up.

How Much Light Gets Through, Realistically

The mistake we hear about most often after installation in Brownsburg is a homeowner noticing light around the edges of a brand-new blackout shade and assuming something's wrong with the product. Usually nothing is wrong. Inside-mounted shades need a small gap, typically a quarter inch to half inch per side, to operate without rubbing against the window frame, and that gap lets light through no matter how opaque the fabric is.

This isn't a defect. It's a byproduct of how inside mount shades have to be built to actually function, and it applies to fabric-based products across brands and price points.

The fix, when it matters, is mounting outside the frame with extra width overlapping the trim, or choosing a shade with side channels built to block that gap specifically. Either approach closes the light path that fabric grade alone can't touch.

Frequently Asked Questions

Will a blackout shade make my room completely dark?

It gets close, but not entirely, especially on an inside mount. Inside-mounted shades need a small gap along the edges, usually a quarter inch to half inch per side, to operate without rubbing the frame, and that gap lets some light through regardless of the fabric.

What's actually different between blackout and room darkening fabric?

Blackout fabric is built with multiple laminated layers, typically a face fabric bonded to a foam or acrylic core with a backing behind that, which makes it fully opaque. Room darkening fabric usually skips one of those layers, relying on a lighter liner that blocks most but not all light.

Do I need blackout in every bedroom?

Not necessarily. It depends on how the room faces and who's sleeping in it. A west-facing primary bedroom or a shift worker's room usually benefits most, while a guest room that sees occasional use is often fine with room darkening.