Window Blinds Calculator - Size and Cost Estimator

Inside mount blinds fit within the window frame for a clean, built-in look. They require at least 1.5 inches of frame depth. Outside mount blinds attach above or around the frame, which is better for shallow frames, provides better light blocking, and can make windows appear larger.

For inside mount, deduct 1/4 inch from each side of the width (1/2 inch total) for clearance. The height should match the exact window opening height. Most blind manufacturers will make these deductions for you if you provide the exact opening size, so always check the manufacturer's instructions.

Cellular shades and roller shades with blackout fabric are best for bedrooms. Cellular shades offer excellent insulation and light blocking. Blackout roller shades provide complete darkness. For best results, use an outside mount to minimize light gaps around the edges.

Costs vary widely: basic horizontal blinds start at $15-30 per window, mid-range cellular shades run $40-80, and premium roman shades can cost $80-200+. Factors include window size, material grade, brand, and features like motorization or cordless operation.

Cellular (honeycomb) shades provide the best insulation. Their honeycomb structure traps air, creating an insulating barrier that can reduce heat loss through windows by up to 40%. Double-cell shades offer even better insulation than single-cell.

Yes. Most blinds come with mounting hardware and instructions. Inside mount is typically easier -- you just screw brackets into the window frame. Outside mount requires drilling into the wall or trim above the window. Basic tools needed: drill, screwdriver, level, tape measure, and pencil.

Cordless blinds use a spring mechanism or wand instead of pull cords. They are safer for homes with children and pets, look cleaner, and are easier to operate. Most modern blind types are available in cordless options for a modest price increase.

Horizontal blinds: dust with a microfiber cloth or duster. Vertical blinds: vacuum with a brush attachment. Roller shades: spot clean with mild soap and water. Cellular shades: use a compressed air canister or vacuum on low suction. Roman shades: vacuum or professionally clean depending on fabric.

Inside mount blinds fit within the window frame for a clean, built-in look. They require at least 1.5 inches of depth. Outside mount blinds attach above the frame and overlap the opening, which is better for shallow frames, better light blocking, and making windows appear larger.

For inside mount, deduct 1/4 inch (0.25 in) from the width on each side for clearance, totaling 1/2 inch less than the window opening width. The height should match the exact window opening height. Most blind manufacturers will make these deductions for you if you order the exact opening size.

Window blind costs vary widely by type and material. Basic horizontal blinds start around $15-30 per window. Mid-range cellular shades cost $40-80. Premium roman shades or motorized blinds can run $80-200+ per window. Material grade, window size, and custom features all affect the final price.

Cellular (honeycomb) shades provide the best insulation among common blind types. Their honeycomb structure traps air in pockets, creating an insulating barrier. Double-cell cellular shades offer even better insulation and can reduce heat loss through windows by up to 40%.

For inside mount, measure the width at the top, middle, and bottom of the window opening and use the narrowest measurement. Measure height on the left, center, and right and use the longest measurement. For outside mount, measure the full area you want covered, adding 2-3 inches on each side for overlap.