Describir: Building and structural tables for architects, builders and engineers.

  ______   __   __   __   _      ___     _    _     _____      _____  
 /_   _//  \ \\/ // | || | ||   / _ \\  | |  | ||  |  ___||   / ___// 
 `-| |,-    \ ` //  | '--' ||  | / \ || | |/\| ||  | ||__     \___ \\ 
   | ||      | ||   | .--. ||  | \_/ || |  /\  ||  | ||__     /    // 
   |_||      |_||   |_|| |_||   \___//  |_// \_||  |_____||  /____//  
   `-`'      `-`'   `-`  `-`    `---`   `-`   `-`  `-----`  `-----`   
                                                                      
  _____   
 |  ___|| 
 | ||__   
 | ||__   
 |_____|| 
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