Fitting a roll-up garage door seems like a big challenge however it isn't as bad as it may sound. Here are a few tools and steps that can help you through the process with ease.
Step 1 - Measure Height and Width
The first thing that you are going to want to do is make sure that everything is out of the way and cleared out to ensure that you get an accurate measure. Measuring wrong for a garage door can be a big hassle so you want to make sure that it is done right the first time. You will want to measure each length that you check at least 3 times to ensure you are doing it right.
Begin with the opening and measure the width in feet and inches and mark it down on the notepad. Make sure that you are clearly writing down which measurement goes with which part of the garage as you will have a few different numbers written down. Then you can go ahead and do the same for the height. You will most likely need a ladder and another person to do this. For this type of measurement you will want to do it a few extra times for sure to be positive that you are doing it straight.These measurements should be the rough opening measurements and the same size as the door.
Step 2 - Measure Sideroom
The next thing that you will want to measure is for side room. You will want to find out ahead of time how much room is required for the type of door that you are measuring for. Many times you will need between 3 and 5 inches of room for the for the track and springs so you will need to take that into account. When you write down the measurement make sure that you record whether or not you have added this extra room on it. Measure again to be sure.
Step 3 - Measure Headroom
The head room is the space that goes from the top of the door opening to ceiling. You will want to measure this vertically and record what the number is and measure again to be accurate.
Step 4 - Measure Backroom
The back room is the top of the garage ceiling and goes from the front to the back. You will want to have someone help you measure this and do it a few extra times because of this hard to reach area. You can also consider measuring the floor a few times and the ceiling once to see if it is the same.
Then you can make sure that all of your numbers are recorded so that you can order your garage roll up door. Most of the time they will ask you for just these individual measurements and then you can plug them in and you will get the garage door size or they will have set sizes and you can find the nearest one.