NanoCell 3/8" Single Cell Honeycomb Shades

Double the cells, double the insulation—in half the thickness you'd expect. Our NanoCell 3/8" double cell honeycomb shades are a breakthrough in window covering engineering, nesting two insulating air pockets within a profile just 0.375 inches deep. This ultra-slim construction delivers the thermal performance of a standard single-cell shade in a footprint that fits the shallowest recesses and tightest clearances. The dual-cell architecture creates two independent air chambers, each trapping heat in winter and repelling solar gain in summer. Yet the shade's compact profile maintains a clean, minimalist appearance that complements modern interiors. Available in light-filtering and room-darkening opacities (blackout not available in this profile). Custom‑sized to your exact window dimensions, with cordless, continuous cord loop, or top-down/bottom-up operation. Small cell, big science.

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Revolutionary Single‑Cell Miniaturization

Conventional single‑cell honeycomb shades require ¾ to 1 inch of depth. NanoCell compresses two complete hexagonal cells into just ⅜ inch using advanced ultrasonic welding and precision‑pleating technology. Each cell is independently sealed, creating two distinct thermal barriers in the space normally occupied by one. This is the most space‑efficient insulating shade available.

Thermal Performance Comparable to Standard Single Cells

Independent ASTM E283 testing confirms that NanoCell’s dual ⅜‑inch cells deliver an R‑value equivalent to standard ¾‑inch single‑cell shades. The two smaller air pockets collectively trap as much still air as one larger pocket, while the additional fabric layer reduces radiant heat transfer. You gain efficiency without sacrificing the ultra‑slim profile.

Ideal for Shallow Recesses & Tilt‑In Windows

NanoCell shades fit recess depths as shallow as 0.75 inches, including windows previously considered incompatible with cellular shades. They also clear tilt‑in casement hardware and crank mechanisms with ease. If you’ve been told your windows can’t accommodate insulating shades, NanoCell changes the equation.

Available in Light‑Filtering & Room‑Darkening

  • Light‑Filtering — 5% openness; soft, diffused daylight with daytime privacy

  • Room‑Darkening — 80% light block; reduced glare and enhanced privacy

Blackout construction is not available in the ⅜‑inch double‑cell profile due to minimal pleat depth. For total darkness, choose our ¾‑inch single‑cell blackout shades.

Clean, Minimalist Aesthetic

At just ⅜ inch deep, NanoCell shades sit virtually flush with the window frame when inside mounted. The compact pleats create a fine, uniform texture that reads as a smooth fabric panel from a distance—ideal for contemporary interiors where window coverings should complement, not dominate.

Quiet, Precision Operation

Despite the ultra‑slim profile, NanoCell shades incorporate micro‑engineered lift mechanisms designed specifically for compact pleats. Cordless spring tension is calibrated for the lighter weight of the shade; continuous cord loop and top‑down/bottom‑up options are also available. All mechanisms are tested to 10,000 cycles.

5‑Color Neutral Palette

NanoCell is offered in five best‑selling neutrals: White, Ivory, Light Grey, Greige, and Sand. All colors are solution‑dyed and backed by a 5‑year fade warranty. Custom colors are not available in this collection.