What: The one that cranks open from the bottom

Where: Often placed higher on walls for privacy and air flow

Minimum/Maximum Sizes: 17 ½” W x 48” H

What: The cozy nook with at least three windows

Where: Most often used in living rooms and bedrooms

Minimum/Maximum Sizes: 44 ¼” W x 73 3/8” H​

What: The one that cranks open

Where: Popular above kitchen sinks because they're so easy to open

Minimum/Maximum Sizes: 14” W x 72” H

What: The one that slides up and down

Where: Often placed... well, everywhere

Minimum/Maximum Sizes: 16 ½” W x 95 ¼” H

What: The one that slides side to side

Where: Often found in kitchens, bedrooms and living rooms

Minimum/Maximum Sizes: 96” W x 11 ½” H

What: Sits just off of your countertop and slides smoothly into a pocket in the wall

Where: Popular in kitchens that open to a patio or deck

Minimum/Maximum Sizes: 38 5/16” W x 119 ½” H

What: The one that doesn't open

Where: Often combined with windows that do open

Minimum/Maximum Sizes: 11 ½” W x 95 ½” H

What: The one that doesn't open, but comes in fun shapes

Where: Often used as a design statement

Minimum/Maximum Sizes: Varies