# How to Calculate Stair Carpet?

Count how many steps your flight of stairs has. Say, 14 steps. Calculate your needed carpet length by substituting these measurements in this formula: length = riser rise × number of steps + tread run × (number of steps – 1) . That is length = 10 inches × 14 + 12 inches × (14 – 1) = 296 inches.

## How to Calculate Stair Carpet?

Calculating the amount of carpet needed to cover a set of stairs can be a daunting task. But with a few simple steps, you can easily figure out the right amount of material needed for your project. Whether you’re installing a new carpet or replacing an existing one, it’s important to accurately measure the stairs so you don’t end up with too much or too little carpet. Here’s a step-by-step guide on how to calculate stair carpet.

First, measure the width and length of each stair. To do this, you’ll need to measure from the edge of the stair tread to the edge of the riser, then multiply the measurement by the number of stairs. This will give you the total amount of carpet that you’ll need for the entire staircase.

Next, measure the height of the stairs. This measurement is important because it will tell you how much material you’ll need to cover the risers. To do this, measure the height of each riser and then multiply it by the number of stairs.

Once you have these measurements, you’ll need to add them together to get the total amount of carpet needed for the project. To