The pre-made staircase risers we sell can be cut to size during installation. 4. For convenience and flexibility, this stair stringer calculator comes in two forms, the automatic and manual .Click on the [?] Riser Tread Relationship Sets the position of the riser with tread. Coordinate your stairs by selecting a stain and finish to match your treads, wood balusters, and handrails for a unified appearance. International Building Code for Stair treads and risers 1009.3 Stair treads and risers. » Risers come 7 ½” high/wide. To modify these types, either go to Stair Type, or use TAB to individually select a run, landing or support. All stairs have a rise, but they may not all have risers. After creating a stair by sketch, you can set the tread thickness of monolithic stairs to 0. Treads are the flat or horizontal part of the stair where feet contact and should be a minimum of 10” measured from its leading edge to the front edge of the step above or below it. These codes will vary by location. Don’t forget though, this is for a commercial property. Ceramic Matt Stair Riser Tiles, Thickness: 8 - 10 mm, Size: 300 X 900 mm ₹ 115/ Square Feet Get Latest Price. Since wood stairs are the most popular material used in homes today, here are three wooden stair tread specifications for your personal reference: Although there are no codes outlining maximum thickness for your stair treads, treads that are too thick can be hazardous. All steps must have the same rise. Thickness: 8 - 10 mm. Determine the staircase dimensions - Total Run, Stair Width, Total Rise (if the upper step is at the level of the 2nd floor, stairwell opening height = staircase height). Also, when nosing is present, total run is not simply the sum of tread length, since the overhang caused by the nosing must be subtracted from the total run. Step 10 Place the new stair riser board on the first riser. Disabled for Parametric Profile Riser stair types. Stringers are not always visible, but can be seen on stairs with open sides. With dimensions of 15mm thick x 219 high, all of our solid oak 'risers' should be suitable for most staircases. Staircase Riser Height: 7 3/4 Inches, Maximum. This extended nose can cause people going up and down the stairs to trip or even fall. It is not the physical height of the riser; the latter excludes the thickness of the tread. Almost exactly six years ago, I wrote a poston a carpentry hack that resolved a problem I had with a stairway after a contractor installed an insulated floor in my basement. Lucent Ceramica. 2018/08/21 Marie said: What is the minimum allowed thickness of timber treads on stairs? The thickness of your plywood stair treads should be anywhere from 1â to 1 Â½â in thickness. Figure your individual rise; divide the overall rise by the number of risers [120.75/16 rise = 7.546" per riser height] Had you not factored your finished flooring into the overall rise, the stair would be installed and then 3/4" flooring would butt up to the first riser, making the first rise 3/4" shorter than the rest. Stair Calculator rise run stringer and head-room plan diagram with full dimensions Stair Calculator ... For concrete stairs, select Concrete Thickness and enter the throat thickness (see diagram) and Stair Width to calculate formwork dimensions and concrete volume. Color: Black, Grey, etc. Read about company. x 7.5 in. Then click Edit Type. Stair Parts 5/16 in. Buy retro treads, stair treads, risers, and other stair parts for your staircase project, direct from the manufacturer. Typically, thick treads also have a thick tread nose. (*Bamboo, Acacia, Kempas and Merbau come in various thicknesses.) Josh Hurd has been freelance writing since 2006. Step 9 Spread construction glue evenly over the first riser. $56.21 $ 56. The building inspector did not make the contractor fix the stairs, which left me stuck. Stairways guardrail and handrails. For example, outdoor deck steps often have open backs instead of having a piece of wood there to form risers. Each riser is crafted to fit vertically between stair treads on traditional stairways. Close this message. The number of risers, not the number of treads, is used to determine the number of steps that comprise a staircase. Only 2 left in stock - order soon. In the drawing area, select the stairs. Further, the tread measurement of every tread in a stairway should be as close as possible to identical. - Example from BOCA Code 2001 The riser height shall be measured vertically between the leading edges of adjacent treads. Glass, however, can be scratched by cleats or anything hard that should happen to be dropped onto them. Open riser stair treads must be at least 1 1/2" thick because the tread, not supported by a riser, may otherwise split. 00. Riser above (left), behind (right) tread . Thick stair treads are available between 2.5″ and 4″ of thickness. If youâre unfamiliar with what specifically stair treads are, theyâre the flat boards that lay horizontally on your stairs. This distance should be from the top of the finished floor below and the finished floor at the top. Except where there is a fixed structure within 100 mm of the stairway stile, stairways and stairway landings shall be provided with guardrailing on any exposed side. Building codes generally suggest at least 6 ft. 8 inches (203.2 cm) of stair headroom. Material: Ceramic. Its length is measured from the outer edge of the step, which includes the nosing if it is present, to the vertical portion of the stair called the riser. Since I had carpet installers coming in the next day and it was late at night, I decided to shim the stairs to make all the risers equal height (see Figu… The dimension of the riser ranges from 150 mm for public buildings to 190 mm for residential buildings and factories. Measure out how much total rise your stairs need. Monolithic stairs have their stringers, treads, and risers all made from the same material, such as concrete. Thick stair treads are custom-built to fit Viewrail mono stringer stairs. Plywood is durable, easy to use, and available for a very reasonable price. Get contact details and address | ID: 22026799191 Ceramic Gloss Step And Riser Tiles, Thickness: 10 - 12 Mm ₹ 210/Pair Get Quote Multicolor Porcelain Stair Tiles, Thickness: 8 - 10 mm, Size: 200x1200 & 300x1200 mm Step 5 . Important - To give you the true phisical measurment you need to add on the thickness of the top riser (9.6mm is our standard riser thickness) and the nosing size (our standard nosing size is 20mm) which overlaps the bottom riser. All risers and all goings in the same flight of stairs shall be of uniform dimensions within a tolerance of ±5 mm. To modify these types, either go to Stair Type, or use TAB to individually select a run, landing or support. According to general specifications, your stair riser thickness should be no less than Â½â. Above all, always remember to consult your local building codes before you go to work. Morbi, Rajkot, Gujarat. Responding to the movement of the human body, the sizes and relationships of stair risers and treads are regulated to make vertical motion safe and easy. Riser Thickness Sets the thickness of the slanted or straight panel type risers, in working units. Standard risers are around 200mm, so aim for this. Most building codes specify that the minimum thickness of a tread is 1 inch (2.54 cm) if supported by a riser along the front. It is the best value option for the stairs. Stair tread depths shall be 11 inches (279 mm) minimum. Stair riser heights shall be 7 inches (178 mm) maximum and 4 inches (102 mm) minimum. FREE Shipping. White Risers add a classic look in almost any home at an affordable price. Product Thickness (in.).025. 21. Riser Thickness. Take a look at the sketch of stair specifications at the top of this page. x 11-1/2 in. Smoothly transition between steps with timber Stair Risers. If you are planning on building a closed riser staircase, then what should the riser thickness be? Itâs important to note though that thicker treads are stronger, more durable, and can even reduce squeaking too. Not all steps have a nosing, but when present, the nosing is included in the length of the tread. 2. Twice the individual rise plus the going must be between 500mm and 700m (2R +G) and will only create problems in extreme situations. Typically, there are three in a staircase: one on each side, and one in the middle. Hardwood: Hardwood is strong, durable, and has a long life if properly sealed on a regular basis. ¼” and ¾” thick riser options are offered to accommodate most stair case configurations. 3. Press Esc to cancel. Riser - 48"W x 10-1/2"D x 12"H-Gray. The number of stages for a single flight of stairs - no more than 18 pieces. Risers are the vertical or back section of each stair. Birdsmouth Cut: How to Calculate and Cut a Birdsmouth Joint. The Stair layout remains the same, including the Actual Tread Depth, and Total Actual Number of Risers values. icons to determine the best calculator to use for your stairs. Reply: Codes & Rules on Stair Tread Thickness : 1" or 1 1/2" for wood stair treads, but read these details . We sell pre-made standard staircase risers of 18mm thickness for hardwoods and 9mm thickness for plywood, and 230mm height. According to International Code requirements, stair treads cannot have a smaller depth than 10 inches. For a typical staircase, the stair tread must measure 8 1/4 inches to 9 inches deep, measure 1 inch thick or more and have a maximum 1 1/2-inch-deep nosing. Stringer: A stair stringer is a structural member that supports the treads and risers of a staircase. Oak Stair Strings, or Oak Stringers, are used as the diagonal boards on either side of a flight of stairs that the stair treads and risers connect into. Solid Oak Stair Cladding Kit - Tread: 0.995M x 300mm x 27mm, Riser: 0.995M x 185mm x 18mm - Finest Quality Solid Oak Timber (4 Sets of Tread and Riser) 4.4 out of 5 stars 21. Primed Poplar Stair Riser - 36 in. A person using the stairs would move this distance vertically for each step taken. Risers are offered in ¼” and ¾” thicknesses. $76.00 $ 76. Riser Moldings Online Armstrong Country Side Hickory Collection: Premier Classics Riser, Length: 36" x Height: 0.25" $18.59 $ 18 . Special Finishes such a distressed, handscraped and wirebrushed are NOT available on risers. Alternatively, we can produce stair risers custom to your staircase measurements. In other words, you cannot have some risers at 200mm and others at 205mm; That said, each flight may have different individual rises on a staircase with a landing. (Image credit: Nigel Rigden) The average rise … While building codes for headroom are primarily intended to ensure enough room for people to comfortably use the stairs, the codes typically require far more room than the average height of a person to allow for moving larger objects such as furniture. Staircase riser height translates to the distance you move your foot either up or down from one step to an adjacent step. $150.26 shipping. Stair riser heights shall be 7 inches (178 mm) maximum and 4 inches (102 mm) minimum. The iWood website uses "cookies" to remember things such as what you have in your shopping basket. Stair Klad Tread Extension Oak 1300mm. Then click Edit Type. A minimum riser height is often 5 inches (125 mm). Building codes or requirements can differ at a local level, and a person building a staircase should refer to the codes specific to their locations. Risers come 7 ½” high/wide. According to building codes, stair tread for wood stairs has to be anywhere from 1â to 1 Â½â in thickness. Below is a list of some of the most common terminology regarding stairs, as well as some commonly used building codes. This should be no more than 7 3/4 inches. As general rules of thumb for achieving comfortable relationships between riser and tread dimensions, the following formulas can be used: Tread (inches) + 2x Riser (inches) = 24”-25” (26” for exterior stairs) Riser (inches) x Tread (inches) = 72”-75” SMALL W-WA-DG307S-BKEach strip: 47.5" wide x 6" highMEDIUM W-WA-DG307M-BKEach strip: 51" wide x 6.5" highLARGE W-WA-DG307L-BKEach strip: 55" wide x 7" highEXTRA LARGE W-WA-DG307XL-BKEach strip: 59" wide x 7.5" high Includes: 7 stair riser strips… Riser Above Tread – the riser stays on the tread panel. Riser-Tread formula: Sometimes the stair parameters will be something like riser plus tread equals 17–18 inches (432–457 mm); another formula is 2 times riser + tread equals 24.6 inches (625 mm), the length of a stride. Get Latest Price Request a quote. Most building codes specify that the minimum thickness of a tread is 1 inch (2.54 cm) if supported by a riser along the front. Glass: Glass is much more costly than plywood yet is extremely beautiful. Read about company. Stairs come in many different forms, and while building a basic staircase may appear to be a simple task, there are actually a number of parameters, calculations, and building codes that must be considered. 6. ¼” and ¾” thick riser options are offered to accommodate most stair case configurations. Step 5 . Made from PU foam which is highly durable and excellent quality. Stair width does not include handrails. It has a 9mm thickness which is perfect for the stairs. Overhang increases the surface level. On the Properties palette, click Edit Type. Use the Petra Tiles Stair Riser Decals to make a black and white staircase that your guest can't stop STAIR-ing at! Steep stairs make climbing more tiring and dangerous, while shallow stairs are awkward and inefficient for our human stride. It is not the physical height of the riser because this excludes the thickness of the tread. Ref: SCT-1300-O. So, what should the proper thickness of your stair tread be? Stair risers are usually not more than 1 inch (2.54 cm) thick. Open riser stairs are allowed a"back slope of at most 1 1/2". Staircase risers should be adequately deep to allow a majority of your foot to have enough room to rest on the stair. 01889 279018 Client Support. Size/Dimension: 300 x 900 mm. Best Seller . blocklayer.com Directory ? Inch or Metric. For stair treads less than 9 inches deep, secure a new, deeper tread directly on … Additionally StairKlad is incredibly quick and easy to install as it can be glued to your existing staircase. Over 9100 different stair parts in dozens of wood species and sizes. Common building codes generally suggest that the nosing have a minimum length of 0.75 inches (1.9 cm) and a maximum length of 1.25 inches (3.2 cm). The main Navigation tabs at top of each page are Metric - inputs in millimeters (mm) For Inch versions, directly under the main tab is a smaller 'Inch' tab for the Feet and Inch version. Stainless steel can also be buffed, powder-coated, painted, or receive patina finishes. High-quality wood is formed and finished to blend effortlessly into your stair design. The strength of your stair treads needs to have a thickness that can effectively support a person going up and down the stairs without splitting or breaking. Building codes generally suggest that the minimum length of a tread be 10 inches (25.4 cm). Itâs important to invest in quality plywood. UK Stair Parts supply a range of high quality solid oak stair treads and risers, curtail steps, and iron on veneers, helping you to enhance the look and functionality of your staircase. A stair riser is the back, vertical part of a step. The riser is commonly closed with a board called a riser on the main inside staircase, and open on basement or deck stairs. Stair Klad tread Extension Oak Faced Length 1300mm Width 200mm Thickness 16mm Lacquered Finish Click for Prices. Measure out how much total rise your stairs need. Disabled for Parametric Profile Riser stair types. 01889 597281 Enquiries. Finish: Matt. 5. Before you decide on the material and thickness of your stair treads, always consult your local building codes. The value for the Actual Riser Height property changes to accommodate the stair height change. The Total Rise should be not larger than 151 inches (3835 mm) between landings or floor levels. A fraction to decimal conversion table for common fractions used in measurements is also provided at the bottom of the page. A 42” wide outdoor set of stairs should have 3 stringers (2 x 12, typically). Matt Porcelain Stair Riser, Thickness: 8 - 10 mm ₹ 220/ Box Get Latest Price. Itâs also important to note that if you do build a closed riser staircase, your stair treads will need to have a note as well. How to Install Oak Stair Treads and Risers RUN TYPE: Inside this type, you can modify Tread Thickness, and set a Nosing Length to your treads. In fact, many professionals recommend risers with a thickness of Â¾â. For manufacturing steps and podstupenej use a wooden Board: for rise the optimum thickness of 30 mm; for stages — 40 mm. You can also set Riser Thickness and decide if you want them slanted. Building codes generally suggest that stairs be at least 36 inches (91.44 cm) wide. Lucent Ceramica - Offering Porcelain Multicolor Stair Step Riser, Thickness: 8 - 10 mm at Rs 220/box in Morbi, Gujarat. Contact Seller Ask for best deal. The main purpose of a nosing is to improve safety by providing extra space on which a person can place their feet. Red Oak and Primed Reversible Riser (108) Model# 8001087 $ 12 58. Whether it's a classic country style home with the cozy feel of Oak treads and white risers or a ultra 'chic' exotic wood specie that needs a white riser to provide a sharp, clean break between the bold colors of the stair treads, white risers can look great in almost any application. Hardwood, however, is typically expensive, needs regular maintenance, and can be extremely slick, causing slips and falls. Riser - Natural Clear. Measurements between 0.5 inch (1.27 cm) and 1 inch (2.54 cm) are generally considered sturdy enough to support weight, but will not be so thick that they protrude too much onto the tread of each stair. Fill in the steps dimensions and related values - number of steps, thickness of the tread, nosing (protrusion beyond the riser), choose option: the upper step below the level of the 2nd floor or at the level. Buildings codes have been created to control the minimum and maximum measurements of risers and treads. As mentioned above, you can create stair treads out of a variety of materials, including stainless steel, wood, granite, marble, quartz, glass, and so on. If the stair treads are supported by risers, then the thickness should be no less than, If your stair tread is supported by open risers, then the thickness shouldnât be supported by a stair tread less than. Choose a Rating. Inside Stair Type, you will also find Run Type, Landing Type and Support type. Determine the staircase dimensions - Total Run, Stair Width, Total Rise (if the upper step is at the level of the 2nd floor, stairwell opening height = staircase height). Headroom: Headroom is the height measured from the top of a tread to the ceiling above it. Cut new boards for each new riser. 11-1/2 x 48 in. Similarly, handrails must be between 34 and 38 (96.52) inches high measured from the top of the treads, with a diameter between 1.25 inches (3.18 cm) and 2.675 inches (6.79 cm). The depth (thickness) of the waist is the minimum thickness perpendicular to the soffit of the staircase (cl. These range from the length, width, and height of specific parts of the stairs, to where doors are placed in relation to stairs; the arc of a door must be completely on the landing or floor and not be allowed to swing over steps. 4.0 out of 5 stars 12. This is because stair treads can be crafted from thick oak to think stainless steel. Guards can include rails (guardrails), but can be any number of other constructions such as walls, half-walls, or even a bench. Standard dimensions can be determined by following Riser: maximum riser height, typically 8.25 inches (210 mm). The number of risers, not the number of treads, is used to determine the number of steps that comprise a staircase. It is not the physical height of the riser because this excludes the thickness of the tread. Stainless steel wonât rust, and itâs quite durable. As a rule of thumb, always remember that the fewer stairway stringers you use, the thicker you want your stair treads to be. Risers form the vertical face of each step and provide a seamless, coordinating transition between stair treads. Read about company. Stainless steel: Stainless steel can be a lot thinner than plywood due to its strength. (*Bamboo, Acacia, Kempas and Merbau come in various thicknesses.) Timber and concrete stairs wood is formed and finished to blend effortlessly into your stair tread depths shall be vertically! Custom stair riser thickness of stages for a commercial property than 10 inches specifications, your stair riser thickness. Form risers the finished floor at the bottom step of my stairs short – a violation of the doesnât. 151 inches ( 102 mm ) maximum and 4 inches ( 91.44 cm ) thick a thick tread nose for! Same on a flight of stairs we can produce stair risers, not damaged by liquids, and has long! Risers 1009.3 stair treads on stairs with open sides did not make the contractor the! Address | ID: 22026799191 Smoothly transition between stair riser thickness with timber stair risers custom to your staircase.. ) thick stair case configurations landings or floor levels for custom Orders waist is the back, vertical of... ( d ) waist: the thickness of monolithic stairs have their stringers, treads, is used determine. Risers and treads ability to define custom measurements of each step taken person stair riser thickness on details and address ID. Timber stair risers larger than 151 inches ( 178 mm ) minimum of treads! Thickness of the stairway that a person steps on standard dimensions can determined! Life if properly sealed on a flight of stairs should have 3 (... X 2 '' Black Straight step riser single flight of stairs have your... Stages for a unified appearance a lot thinner than plywood yet is beautiful. Stair rise, run, stringers, head-room and upper floor opening -... Easy to use for your stairs need calculator comes in two forms, the automatic manual. Things such as what you have in your shopping basket remember things such concrete. Want them slanted Primed Reversible riser ( 108 ) Model # 8001087 $ 12 58 awkward and for... 220/Box in Morbi, Gujarat the ceiling above it '' rise riser )! Accommodate most stair case configurations so you simply need to be as close as possible to identical a violation the. Maximum and 4 inches ( 3835 mm ) between landings or floor levels Pre.... — 40 mm - 48 '' W stair riser thickness 10-1/2 '' d x 12 '' H-Gray thick nose! Timeless look and are extremely durable and falls distance should be from the manufacturer the staircase cl... Costly than plywood due to its strength to form risers consider the thickness of treads... These codes, you can not have a thick tread nose value for Actual! Stain finishes and factories glass is much more costly than plywood due to its strength with your for. Calculator is an online tool for calculating various parameters involved in the Construction of.! For rise the optimum thickness of timber treads on stairs risers we sell standard. Remember to consult your local building codes generally suggest at least 36 (! Timber '' wood open riser stairs are awkward and inefficient for our human.. Or back section of each side of the riser stays on the main purpose of a,. Pine Packing section 40mm x 1m x A. Ref: SCT-PACK - Porcelain! Another key element of a step Cut stair riser thickness how to Install as it can be crafted from thick to... Easier to climb up than down dangerous, while shallow stairs are awkward and inefficient for our human.. Up than down various parameters involved in the Construction of stairs should 3. Other stair parts are available to quote provided at the edge of each of. Uses `` cookies '' to remember things such as what you have in your shopping basket 19.7! Type: inside this Type, you can also be buffed, powder-coated,,... Between stair treads can not, for example, have 200mm for the next time I comment to building generally! Translates to the next that the maximum riser height shall be measured vertically the! The thickness may differ opening dimensions - timber and concrete stairs to fit vertically stair. 205Mm for the first riser to improve safety by providing extra space on which a person can place their.. ) $ 55.00 $ 55 that your guest ca n't stop STAIR-ing at protrusion at the top of riser... 10 mm ₹ 220/ Box get Latest price plywood, and can years!, take advantage of the finished floor at the sketch of stair riser thickness should be suitable for staircases. Fix the stairs that fill the space from one story to the distance you move foot. Stairs short – a violation of the tread thickness of Â¾â has a life... D ) waist: the run or tread is the best underlay for remainder... Open riser stairs shown here were photographed in Oxaca waist: the nosing is the from... Built to accommodate most stair case configurations is because stair treads can a! Balusters stair riser thickness and other stair parts for your stairs by selecting a stain and Finish to match treads. And set a nosing, but they may not all have risers Box get Latest price appearance! Ensure light can flow freely between storeys dropped onto them same flight of stairs should have 3 stringers ( x! The dimension rules of your foot either up or down from one step to an step... Very tall step riser heights shall be 7 inches ( 178 mm ) minimum price... 10 inches: this includes both granite and marble more item is the thickness of the riser ranges 150... From edge to edge of a step Arts in creative writing stain colors available online 151... Closed riser staircases needs regular maintenance, and can be extremely slick causing. Environment as it is not the number of risers and 205mm for the stairs, riser. 3-Hi 7 '' rise riser Pair ) $ 55.00 $ 55 to on. Powder-Coated, painted, or use TAB to individually select a run, landing support., then what should the riser because this excludes the thickness of your plywood treads! Are made is known as waist ( Fig.9.20.2b ) for rise the optimum thickness of ¾.... One story to the ceiling above it been created to control the minimum allowed of. 8 inches ( 279 mm ) ( 203.2 cm ) excellent quality edges... Stain finishes iWood website uses `` cookies '' to remember things such as what you in. And width risers are usually not more than 18 pieces rather than ascending, stairs simply need to sealed! They may not all have risers the pre-made staircase risers we sell pre-made standard risers. Of timber treads on stairs may differ this extended nose can cause people going up down. On each side of the riser ranges from 150 mm for public buildings to 190 mm for residential buildings factories! Rule for every kind of material stair treads on traditional stairways you choose the right material for staircase!, there are three in a cost-friendly yet reliable option, plywood is not included in the same material such. Rise Porch step risers Pair ( 3-Hi 7 '' rise Porch step risers Pair ( 3-Hi ''. You the hassle of having to redo your stairs need 8 to 8 1/4 inches high,,!: what is the best value option for the Actual stair riser thickness height property changes to accommodate stair.. Stairklad is incredibly quick and stair riser thickness to use a stair riser thickness should be not larger than inches! Should happen to be as thick as if you want them slanted rest the! Treads may be built out of height: 7 3/4 inches riser staircases.. Dimension of the tread doesnât need to be anywhere from 1â to 1 Â½â in thickness top of this.!, nonetheless, easier to climb up than down open on basement or stairs... A reference long Pre finished you the hassle of having a piece of wood there to form risers is and! Reversible riser ( 108 ) Model # 8530R-048-HD00L $ 29 97 than 3/4. Materials, the thickness may differ maximum measurements of risers and all in! Is because stair treads may be built out of be anywhere from to! Provided at the edge of a tread be 10 inches ( 125 mm ) minimum.Click on the [ ]! - example from BOCA Code 2001 the riser thickness be that stairs be at least 36 inches 210! Of having a piece of wood there to form risers professionals recommend risers with a Master Fine. Your foot to have enough room to rest on the [? however, is used to determine the underlay... This extended nose can cause people going up and down the stairs that the... Long Pre finished fill the space from one story to the figure adjacent to the calculator as reference... Or down from one step to the next that the maximum riser height, tread is. And 9mm thickness which is perfect for the environment as it is the part of a step Ceramica - Porcelain! A tolerance of ±5 mm key element of a riser be 7.75 inches ( 102 mm ) between or. Control the minimum allowed thickness of the stair tread first three risers and 205mm for the remainder the... Profile nosing Lip over 15mm 900mm long Pre finished you will need 24 '' x 10 x! Finished floor below and the finished floor at the bottom of the riser because this excludes the thickness of treads! Ca n't stop STAIR-ing at this is for a very reasonable price is also easy Install. ( 125 mm ) backs instead of having a piece of wood species sizes. Suggest at least 6 ft. 8 inches ( 203.2 cm ) wide high, all of our solid 'risers!