If the hinges are on the right hand side, you need a right-handed door set. Method 2: With the door open, stand with your back against the hinge jamb. If your left hand is nearer the doorknob, then the door is LEFT-HANDED. If your right hand is nearer the doorknob, then the door is RIGHT-HANDED.
Also know, how do you measure for a door?
Measure for height (H) from the sill to the underside of the exterior trim at the top of the door. Measure the width at the top (W1), center (W2) and bottom (W3) of the door opening. Use the shortest measurement if they vary.
What is the standard size of an interior door?
The height for all passage doors must be a minimum of 80 inches and the standard width sizes for interior doors are 24”, 28”, 30”, 32” and 36”. The minimum recommended door width to allow persons with disabilities' to pass through is 36 inches.
What is the standard height of a Prehung door?
Typically a pre-hung door is measured in 30 inch and 36 inch sizes with additional sizes available in non-standard widths. The doors are also a standard 80 inches tall. Presuming the door is a 36 inch wide door, the dimensions of your opening should be 37 1/2 inch wide by 81 1/2 inch tall.