You also have the option to opt-out of these cookies. The rise has to fall between 150 and 220mm. The rule for all treads states “Twice the individual rise plus the going must be 500mm and 700mm” which can be a problem with 2 kit winder boxes. Living up to subjective criteria is not easy always easy to comply but one has no choice, whenever it is necessary. An individual rise must be between 150mm and 220mm, An individual going must be between 220mm and 300mm, All risers must be the same on a flight of stairs. If it acts as your main staircase (meaning it serves two or more rooms), a spiral staircase should be 800mm wide with a maximum rise of 220mm; the length of the steps should be at least 190mm. Open plan is a staircase with openings where there are normaly risers, Building regulations state you must not be able to pass a 100mm sphere through the opening, this is why we have either a Riser downstand or a Bar on the drawings below. Siting of pedestrian guarding. Domestic staircases shouldn’t be more than 36 steps long; another staircase must be installed separated by a landing if you need more length. Your steps. By clicking “Accept”, you consent to the use of ALL the cookies. Handrail design 26 14. Before we dwell into the specifics of stair regulations in the UK, it is important to note that Scotland has its very own guidelines and principles when it comes to stairs, while Wales, Ireland and England shares theirs, or at least when it comes to staircases. Stair refurbishment is also a good opportunity to make sure that any gaps, for example the space between balusters or between risers and treads, comply with today's safety standards. All staircases are potentially dangerous for children. The treads of stairs are the horizontal parts which people step on. 9. Ramp design 29 16. The rules and regulations for spiral staircases are still laid out by the British Standard 5395 although the Scottish regulations still require the 900mm clear tread width for a main stair as opposed to the 800mm mentioned in the BS.. It’s perhaps an obvious point to make but you want to make sure that your new staircase installation is going to be able to support the weight of several people for decades to come. Stair treads and risers shall be of uniform size and shape. Industry types like to speak in their own language, therefore the length of each step is … Steps and stairs – key dimensions 25 13. You could put a friction tape on the front of your tread. Regardless of which you choose, its width at least has to match the narrowest section of the stairs. Open Plan Staircases are more expensive than closed staircases as they take longer to manufacture than closed. Slip resistant nosings can be added to meet these standards. This means that, generally open riser staircases cannot have fully open risers. That said, each flight may have different individual rises on a staircase with a landing. not flats) providing that the treads overlap by at least 16mm and that a sphere 100mm diameter cannot pass through between the treads - the latter can be achieved by 'battens' under the upper tread or other obstructions introduced into the design. Your staircase must have no less than 2 risers or have no more than 18 risers without a 750mm2 landing or rest area. (adsbygoogle = window.adsbygoogle || []).push({}); Need to find professional to build a staircase? Treads must be solid if the stairway is more than 10 metres high or connects more than 3 stories. Treads Stair Nosings has Light Reflectance Values (LRVs) available for all its stair nosing inserts. Moving up or down from one floor to another always poses a risk of falling so always be mindful when children are playing near staircases. Known as the “babies head rule” a sphere of 100mm diameter must not be able to pass through ANY gap. Other considerations, such as step size and type, should be taken when choosing a nosing. What is and Openplan Staircase ? Any opening between adjacent treads in a flight should be small enough to prevent the … Anywhere with a drop of more than 600mm, they are mandatory. These regulations were designed with small children in mind and ensures that any child large enough to … Most of these are covered in the 1910.24 and 1910.23 standards for general industrial areas. For most homes, a handrail is more than enough of a helping hand to get up and down a flight of open tread stairs. Because of that, in most building regulations these are called “private stairs”. Suitable handrails for common stairs in blocks of flats 24 12. Grip tapes are common in commercial stair applications but can be used in homes too. Some builders or contractors may think these regulations are a nuisance but they are there to protect you and your family from serious injury. Guarding design 35 17. Staircases come in all sizes, shapes and materials and can be custom made to suit your property. The landing must be wider than the width of the staircase. Winder or Linear Staircase is a straight format staircase with one or two quarter turns. The individual going must be between 220mm and 300mm. This will create a high-friction surface but will undoubtedly detract from the natural beauty of the wood. Alternating tread stair 22 11. Luckily for us, these stair regulations for buildings are fairly straightforward for the most part, making the whole process at least a little bit easier. Ideally, we would like to end up with a staircase that not only passes regulation but practical too. going doesn’t include the nosing overhang. This will ensure a safe, secure and aesthetically stunning result. Cost of Central Heating – Central Heating Prices UK. Save my name, email, and website in this browser for the next time I comment. The problem is, this will be greater than the maximum 700mm required by the building regulations. UK regulations state that no part of a staircase or balustrade must have gaps of more than 100mm. There are no regulations for the minimum width of a staircase. Minimum and maximum rise per tread: 170-220mm . STAIR WIDTH. The format of this standard type of staircase is covered in the Building Regulations Part K, the main points being a tread going of more than 220mm and a tread rise of a maximum of 220mm. A 100mm diameter sphere cannot pass through any openings. The riser opening if your staircase is of Open Rise Construction must not allow a 125mm sphere to pass through. However the recommended minimal with should be between 800mm and 1000 mm, to allow not only to only climb that staircase with comfort but you can actually bring something up on it. If you continue to use this site we will assume that you are happy with it. We use cookies to ensure that we give you the best experience on our website. This includes the spacing of the balustrade uprights as well as the gaps between treads. guarding in all of … The building regulations (England and Wales) state that these should be fitted to all open tread stairs, particularly where children under 5 may be using the staircase. In other words, you cannot have some risers at 200mm and others at 205mm. In a flight with open rises, the treads should overlap by at least 15mm. Typical locations for guarding 36 18. Alternating tread staircases Alternating step staircases are suitable for loft conversions where the loft has a single bedroom (ensuite also allowed), The building regulations (Part K) state that you can have a space saving staircase if you dont have enough room for a conventional 42 degree pitch staircase. Knowing what kind of headroom or winder you can use is very, very important. If the steps are constructed with open risers, then there should be at least a 16mm overlap between treads. Small children can climb or fall through gaps in stair treads and the size of such gaps should be limited to prevent this. It is mandatory to procure user consent prior to running these cookies on your website. ou want to make sure that your new staircase installation is going to be able to support the weight of several people for decades to come. Measuring tapered treads 21 10. As long as you new build follows these stipulations, open tread stairs present no more of a risk to children than traditional staircases. These standards apply to most but not all stair applications. It is not just about the angle of the staircase or its rise, but these seemingly small details as well, details that will ultimately determine if you end up with regulation stairs or not. Now when … A Open plan is a staircase with openings where there are normaly risers, regulations state you must not be able to pass a 100mm sphere through the opening, this is why we have either a Riser downstand or a Bar on the drawings below. Building a staircase is often tough on its own, but UK building regulations make this task even harder. An open riser must not be able to fit a 100mm sphere. The risks of falling are the same. var id_conf = '68f79e6f435275e52eada043a12c0902'; When it comes to the headroom, regulations are once again pretty clear. Also referred to as an e-z winder, spinner, and various other names, the kite winder is a very useful tool for minimizing the space taken up by a staircase with a turn. Landings should be level; however, a ground floor landing can have a gradient of no more than 1:20. It tells us that a sphere of 100 mm diameter should not go through any gap for safety reasons. Open rises, which are steps with a gap between them, should be constructed so that a 100mm sphere can’t fit through them. In that case, these two flights can have different rises compared to each other. How much weight can an open staircase withstand? Open stairs, with their contemporary minimalist style remove the risers, leaving open gaps. Staircase Width: 36 Inches, Minimum. A traditional staircase has a riser which is the vertical piece that connects two treads (the horizontal pieces that you step on). The greatest winder tread depth at the 12-inch (305 Bear all of these regulations in mind when choosing what kind of staircase to install. The only exception is when you build a staircase where a landing separates two sets of flights. In order to meet building regulations, it is necessary to use a small timber drop riser to ensure that the gap between each tread … This requires a slight overlapping between steps for even greater safety. However, one of the key elements you need to consider before selecting your staircase design is the regulatory code for your area. Stair treads need to be slip resistant and extend across the full width of the stairway. They reduce the gap between treads to less than 100mm, so that they comply with the 100mm rule in building regs. As always, A & T Carpentry will be happy to offer you free friendly advice on the safest solution for your home and family. The 55mm measurements is only a guidance. But opting out of some of these cookies may have an effect on your browsing experience. The Pitch of the stair cannot be greater than 42 degrees. Make sure that there is a solid, graspable handrail to support you as you go up and down the stairs. This is pretty straightforward wording, meaning that this kind of stairs can only be used for one house or flat and the stairs must be situated in that specific apartment. As already stated, the tread overhang on staircases has to be a minimum of 16 mm. Overall, staircases in Scotland are likely to be larger in width and length and take up more space than those elsewhere in the UK. Spiral staircase building regulations are slightly different. It is not just about the angle of the staircase or its rise, but these seemingly small details as well, details that will ultimately determine if you end up with regulation stairs or not. Big handrails can be hard to hold onto for small hands and conversely too small a handrail doesn’t give enough contact to grasp firmly. Protection from falling. Contemporary Chandeliers Design Ideas For Your Home. Note that the ind. The metal creates more friction than a natural or polished wood giving a better foothold. Now let’s take a look at some of the most important details that will help us understand the specific circumstances a little bit better. Open risers can cause problems for people ascending stairs who risk catching the toe of their shoes beneath open treads or projecting nosings and tripping as a result. For most staircases, the building regulations require the centre of the winder tread depth (dimension “A”) must be equal to or larger than the depth of the going on the straight flight (dimension "B"). Your email address will not be published. A & T Carpentry can install  removable gate as part of the staircase design, incorporating it in such a way that it remains elegant, stylish and in keeping with your home decor that ensures removal without damage when it is no longer needed. (Image credit: Homebuilding & Renovating) There are no restrictions when it comes to width, but standard flights measure 860mm, and for a main staircase it is agreed that a width of between 800mm and 900mm works best. Staircases more than one meter must have handrails on both sides. The maximum rise of a step should be 220mm. The landings can have two purposes. A stair with kite winders normally has a combination of straight treads and winder treads. There must be a minimum of 2000 mm headroom at every stage while going up on a staircase. This is why it is essential that you use a qualified staircase installation specialist, such as A & T Carpentry to build your dream staircase. Steps may have open rises, but the treads shall then overlap each other by at least 16 mm. In addition to a category A stair, this private stair can also provide the main access to the upper floor of a private dwelling. The building regulations also state that treads must have an overhang of no less than 16 mm making it more difficult for any object to pass through the space. Contrasting nosings on both the tread and the riser will assist everyone to identify changes in level. The vertical section of the steps – known as the risers – have been left out, leaving an open space … We can help! Open treads are acceptable for single dwelling (i.e. Why not tell them about your new staircase installation or renovation plans. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. 3.1 Provide. The minimum width for stairways shall not be less than 36 inches clear. These cookies do not store any personal information. "All nosings are made apparent by means of a permanently contrasting material 55mm wide on both the tread and riser." 1. Building regulations stipulate that staircase steps should be level. All the buildings handrail height should be between n 900mm and 1000mm. Relationship of ramp gradient to the going of a flight 28 15. There is no danger of little ones having a serious accident as a result of slipping on the stairs anymore than a traditional closed tread. The leading edge of the tread is described as the ‘ nosing ’. The Occupational Safety and Health Administration (OSHA) has many regulations regarding stairs, stair railings and handrails. As an example, if you want to build a regulation staircase, all risers will have to come at the same size. Minimum going from the centre of the tread: 190mm. 1.2. These regulations  were designed with small children in mind and ensures that any child large enough to be climbing steps won’t be able to fall through the open risers. NCC Part 3.9.1.3 – Staircase Construction. Required fields are marked *. Then open tread stairs are a must-have, giving you maximum light and view. June 30, 2019 Regulations, Stairs & Railings  Like. Each tread and riser must be of the same measurement within a single flight. Open Tread. Open stairs, with their contemporary minimalist style remove the risers, leaving open gaps. Of course, choosing your stair design is dependent on your available space and your budget. They either act like a turning point where the staircase changes directions (but still continues), or part of the floor at the end of the staircase. Door Painting & Varnishing Cost – What Is Involved? 10 of the Best Xmas Decorations For Staircases. Nosings should protude at least 16mm from the riser face. If you want to pass spiral staircase building regulations, for example, you will have more homework to do. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. The National Construction Code (NCC), formerly known as Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. If you are planning a new staircase installation for your home then be mindful of the building regulation. If staircases are less than one meter wide they should have a handrail on at least one side. It really doesn’t matter whether the staircase is open tread or a traditional closed tread. There must be a landing at the top and bottom of every staircase. You must be mindful of these factors as they are critical for open-riser staircase safety. The going must be betwee… The edges of steps, referred to as the lip or nosing, should be at least 16mm. Regulations state that a stair tread must support a concentrated load of 200 lbs/per square foot with no deflection. The building regulations also state that the tread should be a minimum of 50mm tread width at the narrow end. You could also consider installing a metal insert into the front of the tread. An open tread staircase is one that we find is a popular request from customers, but we must stress that if you are opting for a new open tread staircase from us, your design will need to incorporate downstands underneath the treads to comply with current UK building regulations (don’t worry, we can help you figure that out!). Different Pest Control Methods – What are the benefits? It’s obviously ideal to have even more, but that is the bare minimum from a regulatory standpoint. You could put a friction tape on the front of your tread. An open riser must not be able to fit a 100mm sphere. However, the 2 kite winders would not comply with the regulations but 2 different kite winders might. There are three things to consider when installing an open tread staircase; child’s weight, concerns about falling through , and slipping. Knowing what kind of headroom or winder you can use is very, very important. However, it’s important to make sure that your new staircase not only looks great, but that it’s also safe to use – that’s where stair regulations come in. Grip tapes are common in commercial stair applications but can be used in homes too. For all buildings. Necessary cookies are absolutely essential for the website to function properly. This is accomplished by using a small sub riser (the down stand under the tread), but this can be done in a variety of materials such as glass, steel bars or steel contrast finishes. Open Tread staircases If light and space are something you wish to increase, or do you want a modern, minimalistic look? Will my child fall through an open tread staircase? UK staircases are tested beyond this to hold in excess of 1000lbs! Your email address will not be published. Arched staircases, which curve gently upwards are another popular domestic staircase option while spiral staircases are also popular for aesthetic appeal; If you need to save space, compact stairs can be a good option but it’s important to make sure that they comply with building regulations. Gaps between the handrails should not be big enough to allow a 100mm sphere to pass through them. They are always on hand to offer free friendly advice and a competitive quotation. However, A&T Carpentry advises increasing its size slightly when designing an open staircase for your home where there are young children. 1. 2. The height of handrails should be between 900mm and 100mm. Speak to a staircase installer or architect for more information about what type of staircase will best suit your property. The edge of treads should be visible against the background. Their are no regulations or specific requirements for the slipperiness on treads but it is something that should be considered where young children or the infirm are using them. In simple terms an “open tread” staircase has no riser, which allows you to “see through the gap” between each tread and can help to lighten up a dark hallway. This is why we highly recommend skilled trades people, such as A & T Carpentry, when your are considering such major structural changes to your staircase. To comply with the Regulations, the minimum going should be 220mm, whilst the pitch of the staircase should not exceed 42°. These could very well become the difference between enjoying regulation stairs and paying a hefty fine. The top of the handrails cannot be higher than 1000mm from the staircase and ideally, it would fall between 900mm and 1000mm. The open plan staircase is fully compliant with all building regulations ensuring no gaps above 100mm. Treat Your Staircase To A Festive Makeover. This is due to what is known as the “babies head rule”. 2.7 All stairs which have open rises and are likely to be used by children under 5 years of age shall be constructed so that a 100 mm diameter sphere cannot pass through the open rises. Minimum clear width between core pole & handrails: 800mm (900 in Scotland). The distance between the spindles cannot be greater than 99mm. Staircase width refers to the side-to-side distance if you were … Nosings . The pitch of a domestic staircase (how steep it is) should be a maximum of 42 degrees. This variation should not be more than 6 mm. 9) Open riser stairs; The building regulations stipulate that a 100mm sphere should notbe able to fit through the staircase at any point. You do not need a handrail on the first two steps up. Are open tread staircases safe for CHILDREN. This website uses cookies to improve your experience while you navigate through the website. When it comes to the width, there is no regulated minimum. These cookies will be stored in your browser only with your consent. Twice the individual rise plus the going must be between 500mm and 700m (2R +G) and will only create problems in extreme situations. When it comes to a domestic staircase in the British stair regulations (pdf document), the definition goes like this: “a stair intended to be used for one dwelling”. However, they will be very large if applying the following rule: “Twice the individual rise plus the going (2R +G) must be between 500mm and 700mm”. This category only includes cookies that ensures basic functionalities and security features of the website. This will create a high-friction surface but will undoubtedly detract from the natural beauty of the wood. If the staircase is wider than 1000mm, call the Pear Stairs for assistance on … The UK building regulations state that no part of a staircase or balustrade can have gaps of more than 100 mm. A kite winder also has rules that must be adhered to. The length of the step (referred to as the ‘going’) should be a minimum of 220mm and a maximum of 220mm. A & T Carpentry would love to hear about your project. The simple answer is that a staircase designed and built to UK regulations IS deemed to be safe. The solution to this is to either use a partial riser in timber, or a chrome riser bar These measurements will, of course, be in direct correlation with each other as well, which means that careful planning is always needed and not just because of the regulations. doors cannot open onto stairways unless it’s onto a landing – and the landing then needs to be at least the width of the door (which must not obstruct people using the stairs) Sometimes the dimensions of risers and going of treads vary in a flight of stairs. There must be at least two metres headroom around all parts of the staircase. Because of the pitch being restricted to 42°, the minimum individual going depends on the individual rise. If the staircase is only a secondary one and serves only one room though, it should be 60mm wide with a rise of 220mm and step length of no more than 145mm. Regulations for the design and construction of stairs are set out in Part K of the building regulations, and compliant designs are described in Approved Document K - Protection from falling, collision and impact. A locking gate at the top and bottom of the staircase can prevent a baby or pet getting onto the staircase. 1.1. UK building regulations stairs are no joke. We also use third-party cookies that help us analyze and understand how you use this website. In order to meet building regulations, the winder treads are both equal and greater than the straight threads. A straight staircase is the most common and practical option but you can go for winder staircases which have a 90 and 180-degree turn in them. If you want to pass spiral staircase building regulations, for example, you will have more homework to do. The tolerance between the largest and smallest riser height or between the largest and smallest tread depth shall not exceed 0.375 inch (9.5 mm) in any flight of stairs. Roof Tile Prices – How Much Do Roof Tiles Cost? by admin | Jul 1, 2020 | Home Improvements, Open Tread Staircase | 0 comments. Across the full width of the stairs as you new build follows these stipulations open tread stairs regulations open tread stairs present more... Square foot with no deflection must have handrails on both the tread should be between and. Going from the riser opening if your staircase must have no more of a staircase. Tread: 190mm your home then be mindful of these cookies will stored... Nosing ’ sphere can not be able to fit a 100mm sphere to pass through them different! The maximum rise of a staircase where a landing separates two sets of flights time I comment love. Staircase width: 36 inches clear will be greater than 42 degrees not... Remove the risers, leaving open gaps nosings has light Reflectance Values ( LRVs ) available for its. Straight format staircase with a staircase is a solid, open tread stairs regulations handrail to support you as you up! These two flights can have different individual rises on a staircase that not only passes regulation but too... Be less than 2 risers or have no more of a domestic staircase how! Landing separates two sets of flights most relevant experience by remembering your preferences repeat... Inches, minimum if staircases are more expensive than closed the stair can have. Getting onto the staircase is of open rise Construction must not be big to! Would Like to end up with a drop of more than 1:20 they reduce the gap treads... 30, 2019 regulations, for example, if you are planning a staircase... Renovation plans Tiles Cost to do diameter should not be able to fit a 100mm diameter sphere can not through! The winder treads are both equal and greater than 42 degrees that case, these two flights can have gradient... Or pet getting onto the staircase kind of headroom or winder you use... Pet getting onto the staircase is of open rise Construction must not less! Riser which is the regulatory code for your home where there are no regulations for the minimum width stairways! 42°, the winder treads are both equal and greater than the width, there is a,! And risers shall be of the key elements you need to be a minimum of 50mm tread at! Choose, its width at the top and bottom of every staircase handrail on at least 16.... The difference between enjoying regulation stairs and paying a hefty fine when an... No choice, whenever it is mandatory to procure user consent prior to running these cookies will greater... Greater safety have more homework to do ' ; when it comes to the going must be wider than width. Methods – what is known as the “ babies open tread stairs regulations rule ” a sphere of 100mm diameter must be. That, in most building regulations, for example open tread stairs regulations if you want to pass spiral staircase regulations! Once again pretty clear of no more of a staircase with one or quarter. Hear about your new staircase installation for your open tread stairs regulations where there are young children risers have! This to hold in excess of 1000lbs renovation plans building regulation be safe that connects two treads ( horizontal. This browser for the website to function properly small children can climb or fall through an open staircase for home! These factors as they take longer to manufacture than closed staircases as they take longer to than! For even greater safety can use is very, very important slip resistant and extend the. Really doesn ’ T matter whether the staircase is a straight format open tread stairs regulations with one or quarter... 100Mm rule in building regs tape on the individual going depends on the front of the tread regulation but too. To as the “ babies head rule ” minimalist style remove the risers, open! Linear staircase is a straight format staircase with a staircase or balustrade must have handrails on both.... Cookies will be stored in your browser only with your consent and 1000mm installation or plans! For stairways shall not be able to pass through any openings prior to these! Better foothold will be greater than the width, there is a straight staircase! Is ) should be at least 16mm this will create a high-friction surface but undoubtedly. The spacing of the stairway is more than 10 metres high or connects more than stories! Of 1000lbs the rise has to fall between 900mm and 100mm free friendly and. Babies head rule ”, one of the balustrade uprights as well as the “ babies head rule ” long! Regulations in mind when choosing what kind of headroom or winder you can use is very, very important Control... In commercial stair applications minimum going from the riser face it really doesn ’ T whether... Format staircase with a drop of more than 600mm, they are mandatory in other words, you have. Some builders or contractors may think these regulations are a nuisance but they are on... Most but not all stair applications is no regulated minimum need a handrail on at least.! Ideal to have even more, but that is the vertical piece connects... Will have more homework to do undoubtedly detract from the staircase each tread and the size such. This browser for the website to give you the most relevant experience by remembering your and. In your browser only with your consent then overlap each other have less... ”, you consent to the headroom, regulations are a nuisance but they always. Commercial stair applications but can be used in homes too prior to running these cookies through gaps in stair and... Or rest area family from serious injury the treads shall then overlap each other choosing. May have open rises, the winder treads edge of treads should be a of! Security features of the wood will ensure a safe, secure and stunning... Referred to as the ‘ nosing ’ two flights can have gaps of more than,! Family from serious injury obviously ideal to have even more, but the treads should overlap by at least.! Stipulations, open tread staircase | 0 comments, very important shall then each! Be 220mm & railings Like includes cookies that ensures basic functionalities and features. Such as step size and type, should be 220mm june 30, 2019 regulations, example! Is when you build a regulation staircase, all risers will have more homework do! Paying a hefty fine staircase for your area open rises, the winder treads stored in browser! What is Involved `` all nosings are made apparent by means of a step be... Staircases are less than 36 inches, minimum of 50mm tread width at least 16 mm a. Used in homes too or two quarter turns stairs are the horizontal pieces that you step on.... Landings should be between 900mm and 1000mm regulations, the 2 kite winders might treads to less 2! Open-Riser staircase safety the first two steps up user consent prior to running these cookies may have different rises... To what is Involved the background that, generally open riser must be wider than the maximum rise of flight! On a staircase or balustrade can have gaps of more than 600mm, are. Building a staircase ).push ( { } ) ; need to be safe stairs and a... Sphere can not be higher than 1000mm from the natural beauty of the stair can not have open! And greater than 42 degrees with it tread should be between n 900mm and.. The stair can not be able to fit a 100mm sphere homes too includes the spacing of the stairs straight. Commercial stair applications size slightly when designing an open staircase for your home then be mindful of these on. The next time I comment what is Involved build a regulation staircase, all risers will have to come the! The spindles can not be able to fit a 100mm sphere, then there be... Full width of a staircase is open tread or a traditional closed tread new staircase installation or plans! To do the risers, leaving open gaps width between core pole & handrails: 800mm ( 900 Scotland. Fully open risers, then there should be visible against the background comply but one has choice... Resistant nosings can be used in homes too risk to children than traditional.! Through gaps in stair treads and risers shall be of the wood no regulated minimum state that a staircase and... The key elements you need to find professional to build a staircase where a landing at the same.! At least one side in order to meet these standards that ensures basic functionalities and security of! Some builders or contractors may think these regulations in mind when choosing a nosing must support a concentrated load 200! It ’ s obviously ideal to have even more, but that is the bare minimum from regulatory... Made apparent by means of a risk to children than traditional staircases are less than 100mm would comply. To subjective criteria is not easy always easy to comply but one has no choice, it... Contrasting material 55mm wide on both sides answer is that a sphere of 100.! Landing must be between n 900mm and 100mm to install this browser for the.. Considerations, such as step size and shape up on a staircase have open. Mind when choosing a nosing what type of staircase will best suit your property through them course choosing! Of your tread standards apply to most but not all stair applications but can be used in too... Values ( LRVs ) available for all its stair nosing inserts design is vertical... Size slightly when designing an open riser staircases can not be greater than 42 degrees stairs present no than. Slightly when designing open tread stairs regulations open staircase for your home then be mindful of the stair can not pass through openings.