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  • Has a single sash hinged at the top.
  • Opens at the bottom with a hand-turned crank.
  • More durable than casement windows.
  • One type is the basement utility window that is made with a block frame for easy installation in a masonry wall.
  • Another type is the ranch unit, which has the window framed in a brick mold for installation in garages, cottages and utility buildings.
  • Another type is the hopper window, where the window is hinged at the bottom.
 
 

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