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Windows and light

Let the light in, keep the drafts out.

Plain-English guides to windows and natural light: brightening dark rooms, choosing curtains, blinds and shades, measuring and hanging them right, and keeping windows comfortable in every season.

Curtain sizes Compare treatments

Hang curtains higher and wider

  • Rod width8 to 10 in past the frame on each side
  • Rod height4 to 6 in above the frame, or higher
  • LengthJust kissing the floor
Curtains that clear the glass let in more light and make windows look bigger.

Start with one of these

CalculatorCurtain sizesRod, panels and length. CompareTreatmentsLight, privacy, warmth. ChecklistBrighter HomeSixteen steps.

15 window guides

Natural light

Window treatments

Energy and comfort

Safety and care

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The Window Measuring Workbook

Learn how to measure for curtains and blinds, record every window, find the right standard curtain length, note the light in each room and keep a shopping list.

Get the free PDFSee the Brighter Home checklist

Coming soon

Every window, planned

Open Window Home Light Planner: printable window measurement sheets, a room-by-room light log, treatment comparisons, a draft check log, cleaning schedule and shopping list.

$7 once. Yours to keep. 30-day refund.

See what's in the planner