Measuring for Siding

Monday, November 25, 2013 10:25:00 AM Categories: Home Improvement Tips Home Maintenance Home Renovation

In this article, you'll learn

  • Tools you need for siding.
  • Areas to measure for the siding.
  • How to calculate measurements for this project.

Measuring for Siding

vinyl sidingVinyl siding is an option many homeowners can find a variety of benefits in. Your home is something to be proud of, and every investment is an asset into your home’s worth. Siding is one of the top investments you can make to improve the integrity and look of your home.

Take a look at your existing siding; is it cracked, losing color, dirty beyond repair or flaking? Chances are if you said yes, it’s wood siding. The major benefit of vinyl siding over wood siding is that it’s durable, lasts for numerous years, is easy to clean and is generally weather-proof. This means you won’t need to worry in the same way you would with your current wood siding.

If you’ve decided to move forward with purchasing new vinyl siding, you need to plan for it. First, you must take care of measuring for the siding. It sounds easy enough, but it’s actually one of the trickiest steps to the job. There’s a right way to do it and then there’s a million wrong ways to do it. It’s probably better if you read on and discover the right way.

Every house has doors and windows, right? Let’s go ahead and move forward basing this piece on the assumption that your home does in fact have doors and windows. Because of this, you will be working with two types of siding: trim siding pieces and regular siding pieces. It’s important to measure the trim siding pieces properly because the areas around your windows and doors have much different measurements than the measurements you will be using for your regular siding pieces.

Tools for Measuring for Siding

•Large Measuring Tape(s)



•Calculator (Always comes in handy)


The first and easiest step is this: measure the height and width of the exterior walls of your home in feet. This helps you to find the area. Multiply the height by the width of the wall and that will give you the area (told you the calculator would come in handy).

For the second step, you will measure the triangular parts of your wall. These are otherwise known as gables. These are the triangular portions of a wall between the edges of your sloping roof. Multiply half of the maximum height of the gable by the width of the gable and you will have your area (be sure to be writing all this down).

Also, make sure that any abnormal part of your home is measured as well. This means anything that juts or protrudes out of the walls or any basic modifications to a simple four wall home. Measure these parts the same way you have measured everything else and find the areas.

You’ll also need to measure all the parts of the exterior of your home that won’t need vinyl siding. This means doors and windows. Make sure you measure ALL windows on your home unless you are absolutely sure that they are all the same size. If you are not sure then measure them all just in case. Measure your doors and windows and other parts that won’t need siding in the same way you have measured everything else so far.

If you are a person that is sure all of your windows are the same size then just measure one and then add up the amount of windows that are on your house. You’ll still need to measure other parts of your home that are going to be exempt from vinyl siding.

Now that you have all these areas and random numbers, I bet you’re wondering what you’re supposed to do with them. All you need to do is combine all of your calculations for the first three steps and then subtract your combined calculations for the fourth step (the parts of the home that don’t need siding). Your answer to this simple calculation will give you the total area of wall that needs vinyl siding.

Don’t put that calculator down yet. We still have just a few more things to do. Take the one area calculation you now have and multiply it by .10 on your calculator. This accounts for the ends of your siding that will be cut to fit the exterior of your home just right.

Finally, take the total area and divide it by 100. The number you end up with will be the number of squares of siding you will need. Tell this number to the person you are buying the siding from.