Common Bay Window Sizes

Bay windows are popular features in living and dining rooms, as they add visual interest inside and draw attention to the house from the outside. These types of windows have three sections that extend out from the house, creating an angled area.

Oftentimes, a bay window is built as one unit that includes the three sections--a large picture window in the middle and two smaller windows of the same size on each side. The smaller windows can be made in varying angles, ranging from 10, 30, or 45 degrees to 60 or 90 degrees. The larger the window, the easier it is to make a larger angle.

There are common bay windows sizes designed to fit rooms of certain sizes. A medium sized living room might have a bay window with a 45-degree angle and each window section ranging from 16 to 36 inches. Many bay windows sizes are ideal for adding a window seat underneath.

Bay windows are made from double hung or casement windows, which are available in a wide range of sizes. There also are bay window sizes that incorporate five windows, with three in the middle, flanked on each side with one angled, tall window. These bay window sizes often reach eight feet or more total and work well in large rooms where lots of natural light is desired.

Prices will vary by manufacturer, but many bay windows are priced from $1,500 for a 4-foot, 8-inch by 4-foot 6-inch window to $2,500 for a 8-foot, 7-inch by 4-foot, 10-inch window.