Please use our glossary to help become more familiar with the words, terms and phrases commonly found and used in the screens, windows and doors industry. You may either display the set of terms by A-Z or use our search form below to look for a particular term.
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XO Sliding Window
Since "O" indicates the fixed sash, this is a window in which the left sash slides and right sash is fixed, looking from the outside in.
XX Sliding Window
Since "X" indicates the moving sash, this is a window in which both sash operate.
