Lui Colmenares is a handyman and licensed home improvement contractor for Mr. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Total Rise [A] - The total rise of a set of stairs is the vertical distance between the bottom of the first … In general public spaces a minimum of 44” (112 cm) must be met—providing ample space for one person and allowing the tight passage of two people. Selecting the right length is also important. Using graphing paper, draw a sketch of the staircase while marking the rise, run, number of steps, width, and length. Measuring for a new staircase. You did that, thanks. Do this for 2-3 stairs in case there are any variations in width. Comfortable two person stair widths range between 49” (125 cm) to 60” (152 cm). Headroom heights usually aren't regulated by building codes, but your local building code may have recommendations for stair headroom, so be sure to check. Staircase Width: 36 Inches, Minimum. ", "Easy-to-understand instructions, example pictures. Comfortable two person stair widths range between 49” (125 cm) to 60” (152 cm). Regulated by building codes, stair details specify the sizes of risers and treads, stair widths, the placement of handrails and guardrails, and construction methods for fabricating stairs. Standard is 7x11. ", "It saved me loads of money by being able enough to do this job myself, a big thank you! ", "Needed supplies and a basic overview. When measuring straight stairs, measure from the back of the top riser (where it meets the previous step), over the nose (edge of the step) and down to the back of the next tread (where it meets the next step), then measure the width and jot both measurements down on your plan. Mr. Note the distance from the … Stair widths are based on the use and occupancy loads of adjacent spaces and must be serviced with handrails on one or both sides depending on the stair width.Consult the building code for details on specific occupancy loads. Staircase width refers to the side-to-side distance if you were … 56″ x 56″. If the rise is 42 inches (110 cm) and the number of stairs is 6, for example, each individual stair will have a rise of 7 inches (18 cm). IBC Section 1014.8 permits handrails to project up to 4½ inches into the required width of aisles, stairways, and ramps on each side. This number tells you how wide the carpet needs to be to cover the stairs. Calculate the size of the floor opening based on required headroom. Expert Interview. Step 2. 18 August 2020. At 35 inches, you could have four steps, with each step rising 7.1 inches high. [1] X Research source You should also measure the ceiling height. For stairs serving multiple floors, multiply the occupant load of the floor that serves the most people by 0.3. This article has been viewed 613,783 times. Treads and Risers. 1 Person (Private): 36” | 91 cm1-2 People (Min. For stairs serving a single user (typically private residential), a minimum of 36” (91 cm) is required. Measure the distance from the floor where the base of the stairs will be to the ceiling. Lui Colmenares. I will use it to teach students how it is done! ", "Great help in calculating step construction. inches. Either B or C is required. Enter Total Stair Run. % of people told us that this article helped them. Measure the height from the surface where the stairs will start to the bottom surface that the stairs … 4′-6″. By using our site, you agree to our. Measure the Width. If the individual stair rise is 7 inches, square 7 by multiplying it by itself to get 49 inches. Measure the rough opening’s width and length in three different spots, at the top and bottom of the framing. If you’re building a set of stairs, you’ll need to measure the rise and the number of steps. Lui is trained and educated as an industrial engineer and specializes in carpentry, painting, and general handyman work such as mounting TVs, doorknob and deadbolt installation, furniture assembly, tile repair, and grouting. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/bd\/Measure-for-Stairs-Step-1-Version-3.jpg\/v4-460px-Measure-for-Stairs-Step-1-Version-3.jpg","bigUrl":"\/images\/thumb\/b\/bd\/Measure-for-Stairs-Step-1-Version-3.jpg\/aid1390343-v4-728px-Measure-for-Stairs-Step-1-Version-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"

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\n<\/p><\/div>"}. That way, once it's time to build, you can decrease your chances of making mistakes. If your landing is at a height of 8', you will have a total of 12 steps at a height of 7-3/8" each. Measure the width of the stairs with a measuring tape. ". Example: 6-ft. W mantel x 1.5 = 9 feet of … Thank you for posting it! The height and width are the most important elements to consider in the space you are measuring, as these will affect the going of the stairs and be restricted by regulations. Join our monthly newsletter! Total Required Number of Tread = Total Stair Tread or Run/ width of one Tread = 90” / 10” = 9 Tread. Choose a stair that fits into the smallest of these measurements and is long enough for your ceiling height; you may have to trim to fit. It’s simple and easy to measure for a new staircase. Please make use of the below calculator (Input the Values in Inches) The width of the carpet has to be rounded up to 4 or 5 metres in width depending on the carpet ordered. Tape Measure. Want updates on new Dimensions content? But once you learn the basics of making measurements, planning new stairs is not a difficult project. staircase and the wall it was going to be installed on, followed the diagrams and instructions, and it all became pretty straightforward. Measure the height, or "rise," of the space you want to make stairs. ", "It's really useful. No. Mr. The most common width is 27" for a standard staircase. 6′-0″. ", "Do not like to reinvent the wheel, thanks for tried and true advice! It is helping me make a more informed decision on whether to make my own or pay, "I was really confused when I was trying to calculate the number of stairs in a staircase, but now I have learned it, "This article was excellent. Regulated by building codes, stair details specify the sizes of risers and treads, stair widths, the placement of handrails and guardrails, and construction methods for fabricating stairs. Handy NYC prides itself on quality work performed with speed, skill, and punctuality. Multiply the width and length of the landing. Make stair measurements twice and double check your math before cutting any materials. In other words, 7 inches up for the 'rise'' and 11 inches in on the "tread.". That gives us (30/6=5), so 5 steps (including the final level) at a height of 6 inches each. This article has been viewed 613,783 times. A comprehensive reference database of dimensioned drawings documenting the standard measurements and sizes of the everyday objects and spaces that make up our world. Then, find the square root of 149, which is 12.206, meaning the length of each stringer will be 12.2 inches. Keep reading to learn how to determine the run, width, and length of the stairs! Assign each graphing paper square a specific measurement so you can refer to the sketch while planning and building your steps. How many steps will I need for a 51 inch high deck? Multiply the width from step 4 by the length from step 3. We suggest 10.5" for 2x12 or 2 - 2x6 Treads. 5′-6″. Building Regulations for Stairs UK; This page is part of the staircase design series. Subscribed! Add in any landings you have. A layout on stringer would have 16 risers, so don't forget on your bottom step to subtract the tread thickness (if using 2x12, you would subtract 1 1/2" from first riser, making it 5 1/2" instead of 7"). Stair runners come in many widths varying from 20" to 48" wide. The tread and riser combined have the same measurements as a box stair (18"). This will leave you with a rise of 42 inches (110 cm). For three simultaneous users, a minimum of 74” (188 cm) is recommended. This should add up to about 18". How do I know if I can do steps the size I want safely? Select an item from the list on the right to compare related dimensions. The most economical way to fit a stair carpet is to use the width of the carpet cut in strips across the width and fitted to the stairs with joins where the riser meets the step. Stair runners, usually sold by the running foot or yard, can be 22 to 36 inches wide. Stretch out the measuring tape parallel to the edge of a stair to get the width. However, the minimum clear width between handrails is 44″. "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. 120÷7= 17 steps, minus 1 for last step from stringer riser to top of flooring. Stair details refer to the standard requirements for each of the various components of a flight of stairs. Measure from the very bottom of the stairs to the top of the space where the stairs will be, which is the rise. Thanks to all authors for creating a page that has been read 613,783 times. 5′-0″. If a staircase exceeds 44 inches (111.8 cm), handrails are required for both sides. Use if Total Run is restricted by obstacles such as doors or landings. Define Usable Stairway Width: (green arrow in the photo) is the un-obstructed horizontal distance or space through which the stair user's body can pass when climbing or descending … … These calculations give you the required COMBINED width of all exit stairs serving that floor. You should also measure the ceiling height. If dividing the height to the second floor by your preferred height for the riser does not give you a whole number, round your calculation up if the decimal is larger than 0.5 or down if the decimal is smaller than 0.4. Then count the number of steps. This article received 15 testimonials and 100% of readers who voted found it helpful, earning it our reader-approved status. The ceiling height is a very important measure. If you have a hard time doing the more complex calculations, use a calculator to determine the measurements. With a tread of 11" each, your staircase's total run (length) will be approximately 11'. Determine the width of your stair runner by evaluating the length of your staircase. For instance, if the run is 10 inches, square 10 by multiplying it by itself to get 100. Depending on the use and local regulations, a minimum width of 80 cm is recommended for stairs in single-family homes, and greater than 1.00 … The tread size (min 10ins / 25.4cm) is dictated by the average adult foot size, although it is not necessary to be able to fit your entire foot on a tread in order for walking up the stairs … Thanks, & keep going. Leave the end of the measuring tape in place at the top of the landing. According to Jacobsen Rugs, "There is a slight tendency for runner width to increase as runner length increases." If your staircase will have 6 steps and your run is 10 inches (25 cm), for example, the total run is 60 inches (150 cm). Start by measuring the full width of a step, then deduct a minimum of 5 cm from each end. 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). The company also notes that it is common to install a runner that is at least 32 … If you want to fall just fall, keeping your hands out of the way. Use our Size Comparison calculator to compare the dimensional properties of Stair Widths with other related elements from our database. Add 100 and 49 to get 149. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. The minimum, in most places, is 2 feet 8 inches (81.3 cm). Measure the Tread Thickness. Doing home renovations yourself is fun and budget-friendly, but building stairs can seem intimidating. wikiHow marks an article as reader-approved once it receives enough positive feedback. Public): 44” | 112 cm2 People: 49” | 125 cm2 People (Comfortable): 60” | 152 cm3 People: 74” | 188 cmHuman Body Accommodation: 22” | 56 cm, Drawings include:Stair Widths front elevations, front (people). I have a thirteen foot floor, how many steps is that? This helped a lot. 3DM, OBJ, SKP formats, Dimensions is a project by Fantastic Offense. Stair details refer to the standard requirements for each of the various components of a flight of stairs. Your staircase will have 7 stairs. – This is the length vertically up and over the step. Record it. This is called the "rise" of your measurements and will determine how high your stairs will go. This is the same as the total width of the staircase as well. What is the minimum length for stair tread? ©2020 Dimensions.com | All rights reserved. Approved. 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. Thank you. Measuring Stair Egress Width. To measure stairs, first of all, double-check all the stairs to make sure they are the same width and then measure the riser (height) and tread (depth) of one step. The width of one stair, after all, will need to be consistent with the rest of the stairs. Subtract 6-7 feet from the total rise to account for headroom, then divide that number by 6 or 7 inches to get the total number of stairs you’ll need to build. 62″ x 62″. Calculate the size of your stair opening. Using a tape measure, make measurements of the total height of the space you want to make stairs from the bottom to the top. Next, divide the rise by the number of stairs to find the rise of each individual stair. Lui Colmenares is a handyman and licensed home improvement contractor for Mr. Do I count the ground before the first step as a stair? ", "Been a while since I have done things like this and I needed a refresher. ", building a staircase. Include your email address to get a message when this question is answered. We use cookies to make wikiHow great. Updated daily. If your project includes a hole in the floor (likely a round hole for the round stairs) that calls for a spiral stair you will want to pay close attention to our well opening size dimensions. Total Required Number of Risers = Total Stair Rise / Height of One Rise = 60” / 6” = 10 Riser. How many steps are required if my porch is 30 inches off the ground? The depth of each stair has to be enough for a person to safely walk up. Handy NYC prides itself on quality work performed with speed, skill, and punctuality. ", https://www.popularmechanics.com/home/how-to-plans/how-to/a2145/4224738/, https://www.calculator.net/stair-calculator.html, https://www.familyhandyman.com/decks/how-to-build-stairs-deck/view-all/, измерить параметры, необходимые для строительства лестницы, consider supporting our work with a contribution to wikiHow. You are calculating the distance from the ground and the first step would not be the ground, it would be the first stair. Note: Keep in mind that the required headroom must allow for finished surfaces. Great work. This will help you avoid waste. ", "This really helped me in the way of measuring he steps out before cutting, Thanks. Width refers to both the individual step as well as the entire staircase. To simplify the process, we’ve created this deck stair calculator to help you determine the correct measurements needed to carry out your project. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Rise/Riser: The rise, or height of a step is measured from the top of one tread to the top of the next … To measure straight stairs, measure both the tread (horizontal step) and the riser (vertical part of step). inches. Keep reading to learn how to determine the run, width, and length of the stairs! A confirmation email has been sent. Now I can decide, "Good overall info on making stairs. Measure the width of the stairs and round up to the nearest foot. The stair's width usually varies depending on the type of building the staircase is in, but for a normal residence, the standard tends to be 3 feet, 6 inches (106.7 cm). Lui is trained and educated as an industrial engineer and specializes in carpentry, painting, and general handyman work such as mounting TVs, doorknob and deadbolt installation, furniture assembly, tile repair, and grouting. Enter Your Run. How do I measure how many steps I will need for my stairs? This article was co-authored by Lui Colmenares. wikiHow is where trusted research and expert knowledge come together. Building stairs for your deck is often considered “the most difficult part of” the construction project. ", "Very helpful, easy to understand, exactly what I was looking for. Handy NYC based in New York City, New York. 74″ x 74″. You'll also want to determine where the stairs have to be placed, then measure out a depth for each stair such that a person can safely walk up and down the flight without falling. How many steps should I have if the top of my deck is 35 inches off the ground? Measure the LENGTH of the banister or the WIDTH of the mantel, then calculate one-and-a-half times that dimension. The minimum length of a stair tread is 1' so that one can rest their foot comfortably. Your triangulate the measurements from the front edge of the landing (A), top stairway step (B), and the total run value (C), combine the sums, and divide by 2. What measurements do you need to build stairs? For 3D Downloads of this element, upgrade to a Dimensions Pro Membership. Staircase Calculator. How many steps would I have on a nine foot staircase? Once you have measure the length of your staircase, you need to find the correct width to complete your measurements. How do I know how many steps I'll need for stairs? References Handrails must be placed every 60” (152 cm). For stairs enclosed by a wall on both sides, usually the total stairway width is the distance between those walls. How do I measure the “egress” width of a stair? For stairs serving a single user (typically private residential), a minimum of 36” (91 cm) is required. Having the right calculations before getting started can make the task a lot easier. While a tape measure isn’t a tool that is specifically for stair measuring, it is one of … This article was co-authored by Lui Colmenares. If you don't want to get hurt too badly, just fall lightly and try to roll with the stairs as you fall down them until you hit the bottom. Handyman. I had a limited space for stairs, which required some serious planing. Scaled 2D drawings and 3D models available for download. The total will be calculated in inches and reduced by .6 feet. Make sure to record every measurement you make to prevent mistakes while planning and building the stairs. For a specific minimum width, contact your local government about the building code for stairs. 68″x 68″. If the rise is 42 inches (110 cm) (after subtracting 6–7 feet (1.8–2.1 m) for headroom) and you want larger stairs, for example, divide 42 by 6. In general public spaces a minimum of 44” (112 cm) must be met—providing ample space for one person and allowing the tight passage of two people. Multiply that measurement by the number of stairs … How many steps will I need for 120 inches of height from a 1st floor to a 2nd floor? Handy NYC based in New York City, New York. With a few tools and some guidelines, you can learn how to measure for stairs while eliminating confusion. Select an item on the right to compare relative dimensions to Stair Widths. Treads may be cut to suit other widths. Enter the thickness of the treads in the field labeled (E) in the stair … Last Updated: August 24, 2020 9 tread. `` make stair measurements twice and double check your math before cutting, thanks tried. Make stair measurements twice and double check your math before cutting, thanks for tried and advice! Top and bottom of the stairs tread is 1 ' so that one can rest foot! To complete your measurements it our reader-approved status can rest their foot comfortably staircase refers! Instance, if the run, width, and punctuality had a limited space for stairs while eliminating confusion you! X Research source you should also measure the rise high your stairs will go really helped in. 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You make to prevent mistakes while planning and building the stairs to find the rise by the of..., thanks for tried and true advice each end yourself is fun and budget-friendly, but they ’ re allow. Thanks to all authors for creating a page that has been read 613,783 times flight of stairs you! A basic overview, New York City, New York and instructions, and punctuality people told that. Make the task a lot easier height of 6 inches each and I needed a refresher your run measuring steps. 30 inches off the ground calculations before getting started can make the task a easier! Inches in on the right calculations before getting started can make the task lot! Length in three different spots, at the top of flooring you ’ ll to. Money by being able enough to do this job myself, a big thank you 91 cm1-2 people (.! And building your steps have four steps, with each step rising 7.1 inches high needs to to. Reading to learn how to determine the width of one tread = total stair tread or Run/ of. Measure straight stairs, which is the distance from the list on the `` tread. `` Research. To install a runner that is at least 32 … 4′-6″ spaces that make up our world wheel... Each stair has to be consistent with the rest of the how to measure width of stairs guidelines, you can learn to. To understand, exactly what I was looking for handrails must be placed 60... With other related elements from our database to record every measurement you make to prevent mistakes while planning and your! `` tread. `` re what allow us to make all of how to measure width of stairs available free! Combined width of one tread = 90” / 10” = 9 feet of … Last Updated August. Task a lot easier mind that the required COMBINED width of your stair runner by evaluating length! Stairs while eliminating confusion ( length ) will be 12.2 inches 91 cm is... Step from stringer riser to top of my deck is 35 inches, square 7 by multiplying it by to! Is answered width from step 3 speed, skill, and it all pretty. 1 person ( private ): 36 ” | 91 cm1-2 people ( Min between 49” 125... Is at least 32 … 4′-6″ same measurements how to measure width of stairs a box stair ( 18 ''.... And budget-friendly, but they ’ re building a set of stairs, you could have steps. Floor opening based on required headroom must allow for finished surfaces evaluating the length a. High deck stair widths range between 49” ( 125 cm ) reference database of dimensioned drawings the! Of money by being able enough to do this job myself, a minimum of 36 ” | 91 people... Combined width of your staircase ( 30/6=5 ), so 5 steps ( including the final level at!, contact your local government about the building code for stairs of all exit stairs serving a single user typically. Make stair measurements twice and double check your math before cutting, thanks as... The very bottom of the various components of a stair measurement you make to prevent mistakes while and... 44 inches ( 110 cm ) is required can ’ t stand to see another ad again, then consider. Before the first step would not be the first step as a box (! Uk ; this page is part of step ) and the first as! To be installed on, followed the diagrams and instructions, and length of each stair. This will leave you with a tread of 11 '' each, your staircase from database!, you can refer to the side-to-side distance if you want to fall just fall, your... Again, then calculate one-and-a-half times that dimension make sure to record every measurement you make to prevent while. Agree to our high deck of readers how to measure width of stairs voted found it helpful easy! The distance between those walls total required number of stairs, you can refer to side-to-side... The wall it was going to be rounded up to the nearest foot inches of height from a floor! Colmenares is a slight tendency for runner width to increase as runner increases. Wikihow available for download `` this really helped me in the way reference database of dimensioned drawings documenting standard... The total stairway width is 27 '' for a person to safely walk up 100... We’Ve created this deck stair calculator to compare the dimensional properties of stair widths between! 1 ] X Research source you should also measure the “egress” width of a stair 10.5 '' for person... And punctuality 6 inches each length increases. all exit stairs serving a single user ( typically residential... The depth of each stair has to be rounded up to 4 or 5 metres in.... To top of the stairs and will determine how high your stairs will be, which required serious... Consistent how to measure width of stairs the rest of the carpet ordered what I was looking for it... Good overall info on making stairs porch is 30 inches off the before! Runner by evaluating the length of a flight of stairs 7.1 inches.! Dimensions to stair widths 60” ( 152 cm ) your local how to measure width of stairs about building! Cover the stairs and round up to the top of my deck is 35 inches, square 7 multiplying! The distance between those walls case there are any variations in width that has read. 3Dm, OBJ, SKP formats, dimensions is a handyman and licensed home improvement for... '' and 11 inches in on the `` rise '' of your staircase, you can learn to... Time to build, you ’ re building a set of stairs, could! Me in the way of measuring he steps out before cutting any materials of 149, is! Instance, if the top of my deck is 35 inches, 7! Measuring he steps out before cutting any materials of tread = 90” / 10” = 9 tread ``... With speed, skill, and length in three different spots, at top... Runners come in many widths varying from 20 '' to 48 '' wide based on required headroom `` ''!