Measuring door reveal, according to one specific method, involves calculating the reveal dimensions based on the known size of the door itself. This approach provides a set of standard calculations to determine key measurements for the door opening and frame.
Understanding Door Reveal Measurement Through Calculation
Instead of physically measuring the existing opening, this method provides formulas to derive the required dimensions. It primarily uses the door height as a starting point to calculate the necessary reveal height. Other critical dimensions, like the overall frame height and the clear opening sizes, can also be determined using these calculations.
Key Calculations Based on Door Size
The provided method gives specific figures to add or subtract from the door height or derived reveal dimensions to achieve other measurements needed for installation and framing.
Here are the core calculations:
- To get the reveal height: Add 10mm to the door height. This is a fundamental step in determining the vertical dimension of the reveal space surrounding the door.
- To get the overall height: Add 48mm to the door height. This dimension helps determine the total vertical space needed for the door and frame assembly.
Calculating Clear Opening Dimensions
Once you have determined the reveal dimensions, you can then calculate the clear opening size, which is the usable passage space when the door is open.
- To get the clear opening width: Subtract 30mm from the reveal width. (Note: The reference implies the reveal width is known or determined separately).
- To get the clear opening height: Subtract 15mm from the reveal height.
These calculations demonstrate a structured way to determine the required dimensions for a door reveal and related opening sizes, starting with the standard door size.
