How to measure an iron door
What is a Rough Opening? A rough opening is the initial gap in a wall, larger than the door it will hold, allowing space for framing components and adjustments during installation.
Removing existing door
To create the rough opening for a new iron door, first, take out the door trim carefully with a pry bar. Use a utility knife to cut through any caulking or paint around the jamb, which is usually about 3/4 inch thick. Remove any screws or nails securing the jamb to the framing. If necessary, use a reciprocating saw to cut through stubborn nails. Gently pry the jamb away from the rough opening, starting at the bottom. Once removed, clean the opening of any leftover nails, screws, or debris. This process leaves the rough opening ready for the new door installation.
Ensure that the rough opening is approximately 1/2 inch wider than the steel jamb size or unit size, and about 1/2 inch taller. For instance, if your rough opening measures 97” in height and 73” in width, then the appropriate iron door size would be 96 1/2″ in height and 72 1/2″ in width.
How Our Doors are Sized
Our doors are pre-hung for easy installation, and their size is referred to as the net frame size or unit size. This encompasses an entire door system, inclusive of a header jamb, side jambs, and a threshold. The width is measured from the outside of the jamb to the outside of the jamb. Meanwhile, the height is measured from the bottom of the threshold to the top edge of the header jamb.
If you’ve made a purchase or are considering one of our products and have any questions or need guidance on obtaining measurements, feel free to contact us
