Single vs Double Cell Honeycomb Shades: Which Is Better?

How honeycomb shades trap heat

The magic of any cellular shade is the honeycomb-shaped pocket you see when you look at the fabric from the side. Those pockets trap a layer of still air between your warm room and the cold glass, and trapped air is a surprisingly good insulator. A bare window is one of the biggest heat-loss points in a house, so adding this buffer makes a real difference on your comfort and your heating bill.

The single vs double cell question is really about how many air-trapping layers you stack:

• Single cell: one row of pockets forms a single insulating air chamber per fold.
• Double cell: two smaller rows of pockets stacked front-to-back, creating two air chambers and a deeper buffer zone.
• More chambers means more trapped air, which generally means a higher R-value (resistance to heat flow).

Insulation and R-value: the Calgary factor

This is where the two diverge most, and where Calgary's climate makes the decision for you in certain rooms. Double-cell shades typically deliver a higher R-value than single-cell because that second row of pockets adds another barrier against heat moving through the window.

In a city where overnight lows routinely drop well below freezing for months, the extra insulation isn't just a spec sheet bragging point. North-facing rooms, bedrooms over an unheated garage, basement windows, and any space that feels drafty in winter are strong candidates for double cell. The deeper air buffer slows the cold radiating off the glass and helps your furnace cycle less.

That said, single-cell shades still insulate far better than blinds or a bare window. If a room is already cozy, gets good afternoon sun, or sits on a sheltered side of the house, single cell may give you all the comfort you need without paying for the upgrade.

• Best double-cell rooms in Calgary: north-facing spaces, bedrooms, basements, bonus rooms over garages, and any chronically cold window.
• Single cell is often plenty for: south/west rooms with good solar gain, hallways, well-insulated newer builds, and lower-traffic spaces.

Light blocking and privacy

Both single and double cell come in the same opacity choices, so the cell count is not the main lever for light control. What matters more is the fabric you choose: light-filtering or room-darkening (blackout).

That said, the extra layer of fabric in a double-cell shade does block marginally more light at the edges and can feel a touch more opaque. For a true blackout result in a nursery or primary bedroom, the fabric choice and a side-channel or edge-blocking track matter far more than single vs double. If light control is your top priority, focus on a blackout fabric first, then decide on cell count based on insulation and budget.

Cell size, look, and stack height

Cell size affects both appearance and how the shade behaves. Single-cell shades are often offered in larger cell sizes (the pleats look bigger and more pronounced), while double-cell shades use smaller stacked cells that create a finer, more uniform texture on the window.

Two practical points for your windows:

• Stack height: when raised, single-cell shades usually compress into a slightly slimmer stack at the top, so you lose a little less view. Double-cell can stack a touch deeper because there is more fabric.
• Large windows: bigger single cells can look proportionate on tall patio-door windows, while smaller double cells suit standard and smaller windows nicely.
• Texture: double cell reads as a crisper, more tailored look up close; single cell has a cleaner, simpler fold.

Cost: what actually changes the price

Double-cell shades generally cost more than single-cell of the same size and fabric line, because there is more material and a more complex pleat. The gap is usually modest, not dramatic.

We avoid quoting fixed prices here because cellular shade cost depends on real variables: window dimensions, fabric (light-filtering vs blackout), lift system (cordless, continuous-loop, or motorized), and whether you add a top-down/bottom-up feature. The honest way to compare the two is to price your exact windows side by side, which is exactly what a free in-home measurement lets us do. A Sunleo consultant brings samples of both single and double cell to your home, holds them against your actual windows and light, and gives you firm numbers for each option so you can weigh the insulation upgrade against the cost for that specific room.

So which should you choose?

There is no single winner; it is a room-by-room call. Reach for double cell when winter warmth, energy savings, or quieter rooms are the priority, especially on Calgary's cold north and basement windows. Choose single cell when the room is already comfortable, the budget is tight, or you simply want clean, efficient cellular shades without the upgrade.

Many Calgary homeowners mix both in the same house: double cell in bedrooms and cold rooms, single cell everywhere else. That gets you the best comfort where it counts and keeps the overall project affordable. If you are unsure, the easiest next step is to see both in your own light. Book a free in-home measurement and we will bring single and double cell samples, check each room's exposure, and recommend the right fit window by window, with no pressure and no showroom trip required.