borderBoxLogicalWidth property 
    
    
        
  
    
      
  
      double?
      get
      
borderBoxLogicalWidth
      override
     
    
    
  Implementation
  @override
double? get borderBoxLogicalWidth {
  if (paddingBoxLogicalWidth == null) {
    return null;
  }
  return paddingBoxLogicalWidth! + effectiveBorderLeftWidth.computedValue + effectiveBorderRightWidth.computedValue;
}