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

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