Door hardware needs some clearance. Depending on the hardware, we want to ensure that your doors will fit into your opening.
Spring Hinges needs 1/4" clearance, since it mounts to the side of the doors. (non-hold open feature)
Commercial Grade Gravity Hinges need 5-1/2" of space. We can notch the bottom of the doors and then you will need 3" of spacing at the top only. (hold open feature)
Commercial Grade Horizontal Spring Hinge requires the least amount of space at the top and bottom and allows for the tallest doors. (hold open feature) The doors do need to be mortised for the hinges.
If you have an arched opening you will need to include only the height to the arch, not the arch itself unless you are ordering spring hinges.