This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness. That way, once it's time to build, you can decrease your chances of making mistakes. ", "It saved me loads of money by being able enough to do this job myself, a big thank you! The tread is the flat horizontal part of each step, which you stand on when using the stairs. The top of the step that you place your foot on when walking is called the rise. But once you learn the basics of making measurements, planning new stairs is not a difficult project. To measure stair stringers, start by dividing the height by the approximate rise to determine the total number of steps, and then take the difference to find the exact rise of each step. How many steps would I have on a nine foot staircase? This is called the "rise" of your measurements and will determine how high your stairs will go. 120÷7= 17 steps, minus 1 for last step from stringer riser to top of flooring. Pressure-treated lumber is the best choice for outdoor stairs that will be exposed to the elements, like those leading up to decks, porches, sheds, and barns. You did that, thanks. When fashioning them, you’ll need to account for both the height and length of the stairs. Last Updated: November 7, 2019 We use cookies to make wikiHow great. This will leave you with a rise of 42 inches (110 cm). Not only is it used frequently, but it also applies to other types of projects and calculations. Lui Colmenares is a handyman and licensed home improvement contractor for Mr. If you’re unsure whether your finished stairs will turn out as exact and structurally sound as they need to be, it may be better to leave it to a professional. Measure the riser The riser, or fall, of the step refers to … Its length is measured … What measurements do you need to build stairs? ", "Great help in calculating step construction. How many steps will I need for 120 inches of height from a 1st floor to a 2nd floor? Provides a step by step display and a print out option showing the finished stringer with cut dimensions and a materials list. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. The ceiling height is a very important measure. Measuring stairs is a little bit more complicated than measuring a room. The overall height is the distance from the floor or landing at the top of the set of stairs to the floor/landing at the bottom of the set of stairs. This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness. For instance, if the total rise is 114 inches (290 cm), subtract 6 feet (1.8 m), which is 72 inches (180 cm), to account for the headroom. I will use it to teach students how it is done! Follow the old handyman’s adage: measure twice, cut once. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Keep reading to learn how to determine the run, width, and length of the stairs! No. Be sure to extend the tape measure all the way to the outer edge of the step. This is the distance … To measure your floor to floor height, take a tape measure and start at the bottom floor and measure up to the floor where your stair is going. Here’s how the math would work out. Handy NYC prides itself on quality work performed with speed, skill, and punctuality. Measure the depth of the step from the edge of the step or the edge of the bull-nose to the riser at … References This article has been viewed 614,682 times. Don’t do any rounding here. Measure the rough opening’s width and length in three different spots, at the top and bottom of the framing. Starting with the top step, measure the depth of the tread. This will tell you exactly how high the new stairs will reach. Total Rise [A] - The total rise of a set of stairs is the vertical distance between the bottom of the first … "At first, reading how to build a staircase appeared very complicated, but after reading a few times, I drew my, "I recently learned I can expand and nearly double my living space by remodeling my attic, and this required, "How to calculate the amount of treads needed and the total length of the stairs on ground level. Extend a level out across the upper edge of the deck or porch (or the entry point, if you’re building stairs for a shed or similar structure). Since 6 inch high steps are good and standard for all ages, take the total height, in inches, of the finished level and divide that number by 6 (inches). Thanks, & keep going. Measure the width of 1 tread with a tape measure. Thank you for posting it! For example, if you are installing a stair on a deck, your floor to floor measurement would be the length between ground level and the finished deck flooring. In order for your stairs to be consistent (and to avoid a cumbersome head or foot step) it’s important that the distance between each step be as precise as possible. Hands out of the step a tape measure make to prevent mistakes planning... Be able to cut a maximum of 14 steps into a standard 16 foot ( 4.9 m ) 2x12 board! Person steps on and length of the stairs and is rounded on one or both.. Readers who voted found it helpful, Easy to use free stair by. S a link to learn how to measure for stairs, you can avoid ending up a set of for. So three of the stair … 1 us that this article focuses on how to out... Could have four steps, minus 1 for last step from stringer riser to top the... 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