If you are doing home remodeling and want to replace your existing door, when ordering doors online, it is important to get a basic idea of your door's rough opening. Read this article and write down the following measurements. They will help you to select the correct size that will guarantee the best fit. For exterior doors, please make sure that the rough opening is at least about 1-1/2” wider than the frame size/ unit size and about 1” taller. For example, if your door rough opening is 73-1/2” wide and 97" height, then the door size would be 72”x96".
Rough Opening Measuring Guide
Watch this video to learn how to measure for a new pre-hung iron front door.
Measuring the rough opening perfectly is helpful for you to purchase the right door size.
How Our Doors Are Measured
Our doors are pre-hung doors that are easy to install. The size of our door is called net frame size or unit size. It is a whole door system that consists of a header jamb, side jambs, and a threshold. Its width is measured from the outside of the left jamb to the outside of the right jamb. Its height is measured from the bottom of the threshold nose to the top edge of the header jamb.
What Is The IWD Iron Wrought Doors' Size
When you order a door from IWD Iron Wrought Doors, please pay attention to the measurement. Here are the drawings for example, it is a 64"Wx84"H size iron double door. They point out the overall size of a completed door system in different configurations. The height is including header jamb and threshold; the width is including both sides' frames (both jambs' thickness). Please advise your whole door system size to IWD for a quote.
>>36x108 Iron Single Door with 12'' Transom<<
>>74''x91 Steel Single Door with Sidelights<<
- Each Sidelight: 16''W
>>144x105.5 Steel double Door with Sidelights and Transom<<
- Each Sidelight: 34.92x83.61
- Transom Size: 144x21.89
Measure The Sizes For An Iron Door
Door Slab Size <<
The door slab is the actual operating door that does not include any frame. Its width is measured from the inside of the left jamb to the inside of the right jamb. Its height is measured from the bottom of the sill to the inside of the head jamb.
>> Rough Opening Size
Getting the rough opening size is the quickest way to ensure the proper fit of the door unit. The Rough Opening is a structure of framed wall that surrounds the door unit and it is measured from studs to studs. An accurate rough opening requires you to remove the interior or exterior casing and measure. The Rough Opening is typically about 1-1/2” wider than the frame size/ unit size and about 1” taller.
Brick Opening Size <<
The Brick Opening size of the entry door is measured from the exterior side of the house from Brick to Brick.
>> Confirm Your Jamb Size <<
It is the measurement of the wall thickness that the door unit will be fitting into, this includes any sheetrock or sheathing/siding that is on the outside as well. If the wall thickness is 6" including drywall, we will suggest 6" jamb size for you. 4-9/16", 6” and 6-9/16" are the three most choose standard jamb sizes in our shop. We can also customize it for you.
>> Follow our tips to accurately measure an arched door
1. Remove the Trim
Accurate measurement of the rough opening requires you to remove the interior molding and measure it from the inside of your home.
2. Measure the Width
Measure the top, middle and bottom width of the door frame. Use the shortest measurement when ordering if you get different dimensions.
3. Measure the Height
Measured from the floor surface or the bottom of the threshold to the peak of the door arch in the center.
4. Measure The Spring Line Height
Measured from the floor surface to the spring point at which the arch begins to curve.
5. Calculate the Arch Height
Write down the arch height; The height of arch = the door frame height(H1) - the spring line height(H2)
Choose The Appropriate Size For Your Barn Door
Barn Door Size Example
84” Tall Opening
Height Size: 84”+2”=86” Your barn door height should be 86” tall.
36” Wide Door
Track Size: 36”+36”-2.36”=69.64” Your barn door track should be 69.64” long.
Make sure you have enough wall space on the side of the opening for the door to open completely.
34” Wide Opening
1: Width Size: 34”+2”=36” Your barn door should be 36” wide if your door is against the wall.
2: Width Size: 34”+4”=38” If your door is in the middle and covers the opening, then your barn door should be 38” wide.
