The rough opening size for a pre-hung door is typically larger than the actual door size to allow for the door frame, hinges, and some clearance for leveling and adjustments. The rough opening dimensions can vary depending on the door manufacturer and the specific door design, but here are common rough opening sizes for standard residential doors.
◆ 30-inch Pre-Hung Door: Rough Opening Width: 32 inches, Rough Opening Height: 82-84 inches.
◆ 24-inch Pre-Hung Door: Rough Opening Width: 26 inches, Rough Opening Height: 82-84 inches.
◆ 32-inch Pre-Hung Door: Rough Opening Width: 34 inches, Rough Opening Height: 82-84 inches.
◆ 28-inch Pre-Hung Door: Rough Opening Width: 30 inches, Rough Opening Height: 82-84 inches.
◆ 36-inch Pre-Hung Door: Rough Opening Width: 38 inches, Rough Opening Height: 82-84 inches.
If you want to purchase interior door, you have great choice to look into different variety of pre-hung door. They comes in wide variety and size and quick and convenient to install. A pre-hung door is a set of complete unit that comes with door slab and frame and ready to install.
If you want to make interior pre-hung door for your house, there is a lots of questions comes in mind what is correct rough opening for pre-hung door and how to install. There is few points you should know before framing.
Getting the rough opening size right the first time, will save you from tension, when installing your pre-hung doors. Framing rough opening size for pre-hung door is really quite simple. Just add 2 inch to the width of the actual door size. You should add 2″ to the height of the actual door.
Rough openings as the size of the opening before the finished lumber has been added to the jambs. Before you add your framing, the rough opening should be larger than the door size you’ve chosen. Rough opening should be 2″ wider than the door width measured between the left and right edges. So, in a 36 inches wide pre-hung door, the rough opening will be 38 inches wide.
The distance between the floor and the rough header should be two inches taller than your new door’s height. For example, in a standard 80 inches-tall pre-hung door, the header should be 82″ above the finished floor.
A pre-hung door has its own frame and includes a door slab, hinges, and the outer frame, which fits into a prepared doorway. Its do not come with the casing, door locks and handles. However, they do come ready with pre-drilled holes for the lockset and deadbolt.
What sizes do pre-hung doors come in?, Pre-hung door dimensions describe by width and height. Standard widths include 18, 20, 24, 28, 30, 32 and 36 inches. Standard height include 80, 84 and 96 inches.
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What is the rough opening for a Pre-hung door
Typically the rough opening for a Pre-hung door should be sized 2 inches wider and 2 inches higher than the pre-hung door itself. For example a 32″×80″ (two-foot & eight inch by six feet & eight inch high) pre-hung door, would require a rough opening width of 34 inches and a height of 82 inches.
Sizing the rough opening for pre-hung door correctly will allow for the pre-hung door doorframe casing to be installed with about 1 inch of play on both sides, and 1 inch on both top and bottom.
What is the rough opening for a 24 inch pre-hung door
Rough opening for a 24 inch or (24″×80″ or 24 by 80 inch) pre-hung door should be 26″ × 82″ (26 inch wide and 82 inch tall). If you have a bedroom interior pre-hung door that is 24 inch wide (which is considered a 2′-0″ or 2/0 door) just add 2″ to the width and frame it 26 inch wide. The height is 80 inch (which is considered 6′-8″ or 6/8) add 2″ to the actual door height and frame it 82″ high.
What is the rough opening for a 28 inch pre-hung door
Rough opening for a 28 inch or (28″×80″ or 28 by 80 inch) pre-hung door should be 30″ × 82″ (30 inch wide and 82 inch tall). If you have a bedroom interior pre-hung door that is 28 inch wide (which is considered a 2′-4″ or 2/4 door) just add 2″ to the width and frame it 30 inch wide. The height is 80 inch (which is considered 6′-8″ or 6/8) add 2″ to the actual door height and frame it 82″ high.
What is the rough opening for a 30 inch pre-hung door
Rough opening for a 30 inch or (30″×80″ or 30 by 80 inch) pre-hung door should be 32″ × 82″ (32 inch wide and 82 inch tall). If you have a bedroom interior pre-hung door that is 30 inch wide (which is considered a 2′-6″ or 2/6 door) just add 2″ to the width and frame it 32 inch wide. The height is 80 inch (which is considered 6′-8″ or 6/8) add 2″ to the actual door height and frame it 82″ high.
What is the rough opening for a 32 inch pre-hung door
Rough opening for a 32 inch or (32″×80″ or 32 by 80 inch) pre-hung door should be 34″ × 82″ (34 inch wide and 82 inch tall). If you have a bedroom interior pre-hung door that is 32 inch wide (which is considered a 2′-8″ or 2/8 door) just add 2″ to the width and frame it 36 inch wide. The height is 80 inch (which is considered 6′-8″ or 6/8) add 2″ to the actual door height and frame it 82″ high.
What is the rough opening for a 36 inch pre-hung door
Rough opening for a 36 inch or (36″×80″ or 36 by 80 inch) pre-hung door should be 38″ × 82″ (38 inch wide and 82 inch tall). If you have a bedroom interior pre-hung door that is 36 inch wide (which is considered a 3′-0″ or 3/0 door) just add 2″ to the width and frame it 38 inch wide. The height is 80 inch (which is considered 6′-8″ or 6/8) add 2″ to the actual door height and frame it 82″ high.
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Conclusions:-
Typically the rough opening for a Pre-hung door should be sized 2 inches wider and 2 inches higher than the pre-hung door itself. For example, a 32″ pre-hung door, would require a rough opening width of 34 inches and a height of 82 inches.