How Small Can House Windows Be?

How Small Can House Windows Be?

Choosing small windows for your home can bring a feel of whimsy and relief to a large architectural build. From grand-scale to tiny houses, smaller windows can serve a purpose in both situations. They may be small, but they offer a focal point for lighting and a glimpse of an outside view.

How Small Can House Windows Be?

When selecting small windows for your structure, we've gathered a table of the smallest windows from the most recognized brands. The window dimensions often refer to outside frame to frame measurements.

Tip

The best place to find min and max sizes for windows is on spec sheets. If you can't find the spec sheets for the windows you're interested in call the customer service line of the window vendor and they should be able to quickly provide you with an answer.

Picture Window Minimum Sizes

  • Andersen 100 Series: 5 1/4 x 5 1/4"
  • Brennan Traditions:  11 x 11"
  • MI 1620 Picture Windows: 11 1/2 x 33 1/2"
  • Sierra Pacific H3 Picture Windows:5 x 13.5"

Hung Window Minimum Sizes

  • Andersen 100 Single Hung: 14 x 8 1/16"
  • Brennan Traditions Single Hung: 15 1/8 x 22 5/8"
  • MI 1620 Single Hung Windows: 19 1/2  x 35 1/2" 
  • Sierra Pacific H3 Double Hung:5 x 35.5"

Casement Window Minimum Sizes

  • Andersen 100 Series: 5 3/8" x 17 13/16"
  • Brennan Traditions: 16 x 20"
  • MI 1675 Casement Windows: 16 x 24"
  • Sierra Pacific H3 Casement Windows: 5 x 23.5"

Sliding Window Minimum Sizes

  • Andersen 100 Series: 8 1/16" x 8"
  • Brennan Traditions: 22 1/8 x 12 1/2"
  • MI 1630 Slider Windows: 23 x 11 1/2"

Pros and Cons of Smaller Windows

Choosing a small window can either be for necessity (spacing) or aesthetics. And so too for more extensive window options. The pros and cons are dependent on personal needs. 

Pros:

  • Small windows can be placed together to provide a larger focal point.
  • Airflow can be adjusted and limited, depending on the need. 
  • Small windows can serve small spaces such as bathrooms where privacy is needed, but some ambient lighting will be appreciated.
  • They allow lighting into the interior without a substantial thermal loss.
  • Can frame a specific aspect of the outdoor landscape without using up too much interior wall space.
  • Transom windows bring in visual height.

Cons:

  • More complicated to clean with more frames.
  • Small windows do not allow as much warmth into the home than larger windows with more glass surface area. 
  • Do not bring in as much exterior view, not ideal for viewing the landscape. 

Small windows have their place. Some grand home designs can incorporate tiny windows as part of the design↗, allowing natural lighting while maintaining privacy. Other homes↗ use tiny windows as a necessity, favorable over having no windows at all. Whatever you choose, go with a professional who can advise you what will work for your home needs. 

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     -Bobby

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