How to Calculate How Much Carpet You Need for Your Stairs

How to Calculate How Much Carpet You Need for Your Stairs

Carpets are often seen as a cozy and comfortable addition to any home. But are you aware that they can also add a touch of sophistication and style? According to seasoned interior designers, carpet flooring can elevate a space.

Whether you want to create a more inviting space or add a splash of colour, carpets are worth considering. And with so many colours, patterns, and materials, there will surely be a perfect carpet for your home.

Calculating how much carpeting material you need is one of the most challenging aspects of planning your carpet installation. There are many considerations, such as the width and length of your stairs, the type of carpet you want to use, and the amount of traffic your stairs will get.

To make things easier, we have created this quick guide on calculating the amount of carpet you need. Kindly follow the steps below, and you will have your answer in no time.

Box Stairs

A box stair is a type of stairway that is straight, has no railing posts, and is closed on all sides. This stairway is typically used in commercial and industrial settings, where space is limited, and there is a need for a functional and durable stairway.

While a box stair may not be aesthetically pleasing, it is a practical choice for many applications. Typically, it is roughly three inches. It means that you might need eighteen inches of carpet flooring for the depth of each step. Therefore, if you have a staircase with ten steps, you need 180 inches of carpet or fifteen feet.

Cap Stairs

A cap stair is a stair with one open side with railing posts on it. It is a popular choice for homes and businesses because it is attractive and functional. The name "cap stair" comes from the fact that the open side of the stair is capped with a railing. It not only looks great, but it also provides a safety feature that helps to prevent people from falling off the stairs.

A cap stair is a type where the tread and riser have the exact measurements. You will need approximately four inches of carpet to cover the width of your staircase. It allows the flooring material to flow through the posts and wrap around the outside of the stair.

Pie Stair or Winder

It is a type of stair that is curved in shape. Pie stairs are commonly used in homes and businesses. They are often used to connect two floors or to provide access to a second story.

Pie stairs are often used in homes because they add interest and beauty to the house. They can be used to connect two floors or to provide access to a second story.

As a general guideline, you will need four inches (for the width) x thirty inches of carpet flooring for every pie stair. It allows for some maneuvering of the rug to find the best fit. Carpet flooring is an excellent option for stairs because it is soft and cushioned, making it more comfortable to walk on. It is also relatively easy to install and comes in various colours and styles.


Calculating the amount of carpet you need for your stairs is a simple process that requires just a few measurements and some basic math. With some planning and effort, you can quickly get the perfect amount of carpet to achieve the look you want for your home.

Now you know how to get the measurement of your carpet flooring, you should check what Global Carpets can offer. We have various designs and materials for you to choose from. So, shop now!