BlindSizeFinder

Types of blinds and shades

Where each one shines, where it doesn't, and how deep your window frame needs to be.

Friends share dinner around a wooden table in front of windows dressed with linen roman shades

Short answer: blinds have slats you can tilt to adjust light while they're closed; shades are fabric, so you get the view only when they're raised.[1 · Oct 29, 2026] Faux wood is the go-to for humid rooms, cellular shades insulate best, roller shades are the simplest, and vertical blinds suit wide windows and sliding doors.[2 · Oct 29, 2026][1 · Oct 29, 2026][3 · Oct 29, 2026][4 · Oct 29, 2026]

Which type where

Inside-mount depth by type

ProductMinimum depthFully recessed
Cellular shades (cordless or loop)½ in2⅛ in
Roman shades½ in2⅛ in
Metal blinds, 1 in slats½ in1 13/16 in (2½ in with valance)
Metal blinds, 2 in slats½ in2½ in
Faux and real wood, 2 in slats¾ in2½ in (3½ in with valance)
Faux and real wood, 2½ in slats1¼ in3 in (3⅞ in with valance)
Roller and solar shades1½ in2½ in
Natural (woven) shades1½ in2 in
Vertical blinds2½ in3 in headrail; 3¾ in for the vanes

Depths from Levolor's measuring guide and vertical blind guide.[6 · Oct 29, 2026][7 · Oct 29, 2026] Other makers differ: Bali's 2 in wood and faux wood blinds need ¾ in to mount and 2⅝ in (cord tilt) or 3⅜ in (wand tilt) to sit flush.[8 · Oct 29, 2026] Below the minimum, go outside mount.[9 · Oct 29, 2026]

Slat size

Wood and faux wood blinds commonly come with 2 in or 2½ in slats. Bigger slats give a more open view when tilted; smaller slats suit narrow windows and French doors with less depth.[2 · Oct 29, 2026] Larger slats tend to look better on bigger windows.[1 · Oct 29, 2026]

Energy

Vinyl and metal blinds make up about 60% of US window coverings but don't insulate much; the US Department of Energy says energy-efficient window attachments can save about 15% of a home's yearly heating and cooling energy compared with vinyl blinds.[3 · Oct 29, 2026]

Sources: 1. Hunter Douglas, Buyer's guide to window blinds. 2. Levolor, Real wood vs. faux wood blinds. 3. US Department of Energy, Cellular shades fact sheet (PDF). 4. Levolor, The quick-start guide to choosing blinds and shades. 5. The Home Depot, Blinds category and buying notes. 6. Levolor, How to measure windows for blinds and shades. 7. Levolor, Vertical blinds technical guide (PDF). 8. Bali, Wood, composite and faux wood blinds measuring guide (PDF, hosted by a retailer). 9. Blinds.com, How to measure. Checked Oct 29, 2026. Trademarks belong to their owners; figures are restated in our own words and tables, not reproduced.