Fact Checked

What is a Hopper Window?

J. Beam
J. Beam

A hopper window is a single style window similar to a casement window in that they both are hinged for opening, rather than slide open. It is hinged on the bottom and opens inward from the top. Though these windows can come in a variety of sizes, they are a common style used in small areas and openings, such as basements and bathrooms.

What makes the hopper window versatile for small spaces is the fact that they open completely. A smaller window occupies a limited amount of space already and those that slide open only allow half the area of the window to be used for ventilation. A hopper window, because the entire window opens from the top, allows ventilation through the entire surface area of the window. It is, therefore, commonly found in basements and in bathrooms where there is a window in the shower or tub area. Though less common, they are sometimes used above other, larger style windows.

Basements may feature hopper windows.
Basements may feature hopper windows.

The hopper window features a hinged bottom and a locking mechanism at the top. There is a small, lever-style handle that is used to open and shut the window that also fits into the locking mechanism for security. Depending on the size of the window, security features are important because of the fact that the window is often at or close to ground level, making them easily accessible for intruders.

Replacement hopper windows are readily available from both dealers and home improvement stores. The window is considered to be very energy efficient and provides maximum function compared to other models designed for small openings. One of its disadvantages is limited privacy. Window coverings such as blinds or curtains make the normal operation of a hopper window cumbersome, if not impossible. Alternatives to window coverings for a this style are privacy films and tinting.

The hopper window accommodates a full window screen because the window opens inward, away from the screen. Casements include wood and vinyl, making them both decorative and practical for most all installations.

You might also Like

Discussion Comments


When measuring for a vinyl hopper window, how do I determine the correct size to buy? I see all these kind of hopper window sizes at Home Depot, and I really just don't know which one I need.

How do I measure for a hopper window?


I've been looking at installing new windows in my basement -- right now I've got glass block basement windows, and I really want a more open type of window to get some more air in my basement. Can anybody tell me whether when it comes to basement windows, hopper windows are appropriate?

I've got enough room to install window wells, so I think it would be structurally fine to put them in, but are there any things I should consider before going ahead and putting in hopper windows in my basement?


What about those hopper style windows that hinge at the top and open at the bottom? Are these still called hopper windows, or are they a different kind of window?

I had heard them called egress windows, but they sound like hopper windows to me.

Can anybody clue me in?


Why is the hopper window considered more energy efficient than other windows?

Post your comments
Forgot password?
    • Basements may feature hopper windows.
      By: Elenathewise
      Basements may feature hopper windows.