1 500, rue Maurice-Bachand, Windsor QC J1S 0J1 Canadainfo@davibois.ca 2650 Stair Stringer Guide - LVL-E2015: Product . I'm building deck stairs with 12 treads, 2 notched plus 2 closed stringers. On 2020-07-20 by (mod) - How many stair stringers do I need on a deck that is 10ft long. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. It combines the steel I-Beam with simple steel plate riser wedges and tread plates with wood steps. In the case of a stairwell that is supported on both sides by walls, 220 stringers are adequate as they gain the additional support of the wall studs. size of the Knife cut! Steve I'd like to see a photo, but yes it's quite possible that someone felt that the stairs were not adequately supported by the stringers so added a post at mid-span. The width of the stair can be up to 42 in this design without additional steel support under the tread. A529-50 Steel Junior Beam Select a Size Add To Cart B1865 M 8 x 6.5 lb (8.00" x .135" x 2.281") A529-50 Steel Junior Beam Select a Size Add To Cart B1357 S 3 x 5.7# (3.00" x .170" x 2.33") A36/A572-50 Standard Steel I Beam Select a Size Add To Cart B1375 S 3 x 7.5# (3.00" x .349" x 2.509") A36/A572-50 Standard Steel I Beam Select a Size Add To Cart Deck stair stringers use pressure-treated wood versus standard wood. Before fastening, position the stair stringer with the LSC on the carrying member to verify where the bend should be located. Stringers are supported on newels, trimming joists, or pitching pieces. info@acadiastairs.com. Designed with any type of tread, riser, or finish to match your dcor, U-shaped (aka switchback stair or scissor stair), Tri-Frame stair configured from (3) pipes. Feel free to check out our gallery page to view some of our finished work and gain a better understanding of our style, approach and versatility. This bridge type costs less per foot since it requires less material for the overall design. Also read: Types of Stairs & Parts of stairs 3. Stair treads may be made of a single 2x12 but typically have two decking boards usually 2x6s or 1x6s. |Stringer Beam Staircase Details | Different Types of Staircase Stringers, Stringer Beam Staircase Details | Steel Stair Stringers |Wood, Stair Stringers |Alluminium Stair Stringers |, How Much do Stairs Stringers Cost? Q. A Stringer beam is therefore provided in order to make take care of the foregoing reasons. AnonI don't understand the question; a misty vague answer might be sure - as long as the stringer you've made is structurally adequate. Given how critical the structural integrity of stair stringers is, it almost always makes sense to err on the side of caution and go with 212 lumber. A. }, [19] Common Sense Stairbuilding and Handrailing, Fred T. Hodgson, [21] Building Stairs, by pros for pro, Andy Engel, [22] A Simplified Guide to Custom Stairbuilding, George R. Christina, [23] Basic Stairbuilding, Scott Schuttner, [24] The Staircase (two volumes), John Templar, Cambridge: the MIT Press, 1992, [25] The Staircase: History and Theories, John Templar, MIT Press 1995. A special engineered tiered-in-place stair system can be used to minimize the potential instability and structural damage from such hoisting. Assuming we design a staircase spanning transversely and supported by beams at the supports, this would result in an uneconomical staircase section due to the thickness of the waste that would ensue and quantity of steel that will be required to control deflection. STAIR STRINGER SPECIFICATIONS at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. Heavy top flange for increased strength and reduced damage. "Introduction: Wood Properties, Species, and Grades." Replaces additional framing and toe-nailing Suitable for most installations on 2x10 or 2x12 header/rim joist May be installed flush with the top of the carrying member or lower on the face 819 845-5950. While it is possible to reach the minimum stair depth tread of 10 inches (again using the 1.25-inch maximum tread nose depth) while still maintaining the minimum throat width of 3.5 inches, you would have to go with an awkward stair rise of just 4 inches. Indian Standard Medium Weight Beam 300. Then slide the square down the board and continue to trace the shape of the stairs until you reach the other end of the board. In this case, this beam has been sized conservatively based on the preliminary sizing rules, hence the check shouldnt be critical. Let's be clear first that a significant concern with the strength of supporting stair stringers (effectively angle beams) arise because a typical 2x12" (or rarely 2x14") stringer is in some stair designed notched to carry the stair treads on the horizontal notch face and stair risers on the vertical notch face. draft of the boat, whether you have an inboard or outboard motor, and so on. 2650-2659. Routed stair Stringer or Housed Stair Stringer: The stair tread plates are pre-drilled with countersunk holes for the cleanest appearance on the underside. shear resistance of the concrete section, therefore the section is adequate however, nominal shear reinforcement must be provided: Therefore, the area of shear reinforcement required: Deflection of the Stringer beam is carried out by censuring that the actual span depth ratio is less than the limiting value. Consider one-way slab in transversal direction to the edge beam and then the edge beam transferred the reaction force to the landing beam. Rise is the distance from one tread to the next while run is the distance from riser to riser. Note: appearance of your Comment below may be delayed: if your comment contains an image, photograph, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. Once they had arrived, Todd advised on how best to install them as we were doing the work ourselves. Most homes use standard-sized I-beams - on the smaller side - and support them with posts. Interchangeable for left or right applications LSCSS features a Stainless Steel coating for additional corrosion protection. Like wood decking, wood stringers require careful and consistent installation to avoid warping or splitting. Here is a model building code citation for stair stringer support requirements for residential stairs insert the Knife! "Design of a Glass Stair." Extruded aluminum can be used to make treads, risers, and tie rods in stair stringers to the same dimension as the steel counterparts. Aluma Beam & J-400. Make sure you leave at least 7 inches at the head of the board for the final riser, which you can trim to fit later. Walers in construction are horizontal beams that are bolted to a larger upright structure, such as a dock, in order to help support it. HE. 2016 Davibois | Design et programmation du site web: Imacom Communications |, 1 500, Maurice-Bachand Street, Windsor QC J1S0J1 Canadainfo@davibois.ca 2) Design a waist slab type staircase comprising of a straight flight of steps supported between two stringer beams along the two sides. Staircases are structural components that allow movement from one floor to another in a structure, with landings at appropriate intervals to provide users with comfort and safety. An "open . Nous desservons la grande rgion de Sherbrooke en Estrie, la Montrgie, la grande rgion de Montral et de Qubec. AMS 4880-C95510. A stair stinger is a structural element that is put on either side or in the center of a flight of stairs and is fixed to the threads and risers. If you're going to use guideposts on the lift, you'll want at least a ten-inch cushion. That sort of detail is not discussed in building codes. Stringer beams are particularly very useful in staircases with very stringent span requirements, where the thickness of a stair waste would be very large should the staircase be designed as spanning in the transverse direction. Q. More than that, Wellmade is able to open new moulds to produce according to your Aluma Beam design. Its also important to note that there is a nominal cost difference when deciding whether to use 2X10 or 2X12 stringers. Seller assumes all responsibility for this listing. Aluminum is a popular choice for stair stringers because of its light weight, excellent corrosion resistance, and ease of fabrication. Q. ISBN 10: 1-933264-01-2, The simplest beam bridge could be a log (see log bridge), a wood plank, or a stone slab (see clapper bridge) laid across a stream.Bridges designed for modern infrastructure . I'm talking about the wood itself becoming 4 1/2" on the bottom rise.I'm building deck stairs with 12 treads, 2 notched plus 2 closed stringers. A. How are stringer beams different from other stairs? A beam-slab combination is cost-effective, and a beam without a slab is provided with hanging steps, i.e., cantilever on either side of the beam. The total run and number of stairs would need to be nearly double that of a standard set of stairs to reach the second floor! thick, with a depth more than 2.0 in. A longer set of stairs may not fit in the available space. [43] International Building Code, Stairway Provisions, Section 1009: Stairways and Handrails, retrieved 8/29/12, original source: http://www.amezz.com/ibc-stairs-code.htm [copy on file as IBC Stairs Code.pdf], [44] Model Building Code, Chapter 10, Means of Egress, retrieved 8/29/12, original source: http://www2.iccsafe.org/states/newjersey/NJ_Building/PDFs/NJ_Bldg_Chapter10.pdf, [copy on file as NJ_Bldg_Chapter10.pdf] adopted, for example by New Jersey. Our Comment Box is provided by Countable Web Productions countable.ca, Click to Show or Hide Citations & References, UNSAFE STAIR TREAD TO STRINGER CONNECTIONS, CONSTRUCTION GUIDES for EXPOSED WOOD DECKS, STAIRS, BALUSTRADES & HANDRAILS CLASS 1 BUILDINGS - CONSTRUCTION, ENGINEERED WOOD: EAST 1" VERSA-LAM LVL 1.8E 2650STAIR STRINGER GUIDE, ENGINEERED WOOD: WEST 1516" VERSA-LAM LVL 1.5E 1800STAIR STRINGER GUIDE, LP SOLIDSTART LSL STAIR STRINGER US TECHNICAL GUIDE, STAIRWAYS & LADDERS, A GUIDE to OSHA RULES, TrusJoist STAIR STRINGERS AND TREADS SPECIFIERS GUIDE, STAIR CONSTRUCTION, SPECIFIC ANGLE or SLOPE, ARTICLE INDEX to STAIRS RAILINGS LANDINGS RAMPS, HOME INSPECTION EDUCATION COURSES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES. This is significant, especially if you need several beams. InspectAPedia tolerates no conflicts of interest. Instead codes typically specify the strength required of the ending design. A. Stringer beams are typically assembled with a welded joint at each connection point, but there are other ways that you can attach your stringer to its foundation. Raker beams and Seating Units TYPICAL SECTION ALONG PC RAKER BEAM Structural Precast Concrete Contractors Hazelhatch Road, Newcastle, Co.Dublin Email: info@concast.ie Seating Units. Check up to five results to perform an action. A. The wire rope and hydraulic jacks used for lifting the stairs can have a direct impact upon the structural integrity of the building. S shapes are designated by the letter S followed by the nominal depth in inches and the weight in pounds per foot. The bridge's structure is made specifically for shorter spans ranging from 10 to 24 feet long. A set of stairs with one or two open stringers will not have the same support, requiring more strength. They are also particularly beneficial in staircases where the thickness of the waste would be very considerable relative to the span of the flight due to deflection requirements and material economy. That would get it up to the 600 to 750 lb range for a 30 foot beam which could be more than you want to handle. The single stringer staircase can have a high-tech style when combined with stainless steel hardware and stainless steel railings. For example, you can use a bolted joint or a nailed joint. Because deck wood is exposed to weather, which can cause wear that impacts the structural integrity of the lumber, most pre-cut pressure-treated deck stair stringers use 212 lumber for both long and short spans. A common construction or repair method for strengthening notched stair stringers is the addition of either full depth (not notched) dimensional lumber (e.g. Marking of Tread and Riser on the Stringer The dimension of tread and riser is marked on framing square and sketched out on the wooden plank of standard size 2x12 inches stock board. Some companies also offer engineered wood that can be used for stringers, which also offer better strength qualities. They are generally inclined secondary beams that sprout from primary beams or supports and are used to convert distributed loadings from a slab into point loads. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 845-765-8600 They can be placed at different heights or angles along a structure in order to bolster it most efficiently. While you may find some information stating that it is okay to use 2x8s for stair stringers, in most cases, it wont work. Precast U Beam. Aluminum is also more durable than steel, making it more acceptable to building codes and code administration entities. Structural Wood Design: A Practice-Oriented Approach Using the ASD Method (2008): i-xii. My reason to want the pvc on the bottom is to prevent wood rot of acq pressure treated lumber on a concrete slab in constant rainThank you. The minimum beam size is a 4-by-6 made from two, 2-by-6 planks. greater than the thickness. In these cases, it makes sense to use a 212 board for the stringers. Free shipping for many products! All channels may also be available in Aluminum, Stainless Steel, Brass, Bronze, & Copper (please call ahead for availability: 215-831-5020). NOTE: The correct fasteners installed in the correct position must be used to achieve published load values, Can I use a galvanized stringer support to attach stairs to my deck. While its possible to increase the tread depth by decreasing the riser height to make the notch small enough to maintain a 3.5-inch throat in a 210 board, it will take a longer run to reach the second level. Aghayere, Abi, and Jason Vigil. 1 cm4= 10-8m = 104mm Pay close attention to the installation instructions provided by the manufacturer. This will cause structural weakness in the stringer. This article describes the construction and building code specifications for the support of residential stairways: how strong should the stringers be, and what are the load bearing requirements of stairs and their supporting stringer beams. The LSCZ adjustable stair-stringer connector offers a versatile, concealed connection between the stair stringer and the carrying header or rim joist while replacing costly framing. I've seen this addition when stairs were bouncy or creaky too. A cantilevered stringer staircase has a single side stringer that is installed inside a wall and strengthened. An open stringer is a stringer without any riser and tread. American Iron and Steel Institute (AISI), Standard for Cold-Formed Steel FramingPrescriptive Method for One- and Two-family Dwellings (COFS/PM). This type of stringer uses a single beam, usually steel or stainless steel, that sits underneath the stair treads and provides the support for the stairs. I prefer to avoid deflection or even collapse problems by using a solid stringer, connecting stair treads to cleats. Create an open and modern look for your home or office with our custom single stringer staircase designed to meet your needs. Once both measurements are lined up, use a pencil to trace the notch on the outer edge of the square. One may need to increase the number of stringers accordingly. You can find joist spacing requirements in the installation instructions for your deck boards. They can also be used to support decorative, aesthetic features such as railing and balustrades. The ultimate or the perfect size deck beam to always use is a 210 and a 212, But nature teaches us how to effectively and ideally use what is at our disposal. Steve I'd like to see a photo, but yes it's quite possible that someone felt that the stairs were not adequately supported by the stringers so added a post at mid-span. Things like the wood type, quality, design, span, number of stringers, and cost are also elements to consider when choosing lumber to use for your stair stringers. The stringer is the support for the stairs - it functions as an angled beam and must support both the dead loads and live loads of the building stairway. What Is A Subfloor? Check out our guide on how to correctly measure and choose dimensions for your pergola. ASCE, 2010. Less than 2" of lumber was left in this stair stringer 2x after the builder cut his tread notches. It's also worth emphasizing that in all cases the connections are as important as the beam strength. While yellow pine is the most common wood used for stringers, it is possible to use hardwoods, such as oak, maple, walnut, ash, and hickory, all of which offer superior strength compared to standard pine boards. HL. Dimensions and static parameters of American Standard Steel C Channels Sponsored Links Properties in imperial units of American Steel C Channels are indicated below. A Stringer beam is a structural member that supports a floor or a deck along its longitudinal direction. Its important to understand that while this treatment makes the wood more resistant to weather and pests, it does not make the lumber structurally stronger. The number of stringers required is determined by the width of the staircase and the material of the treads. This can be designed for the stair design load, as a cantilever slab, however, for most staircases nominal reinforcement steel based on minimum area of steel should be sufficient to satisfy this requirement. This type of staircase can be made in almost any configuration: We work with you to design and build single stringer straight stairs tailored to your needs and vision. Figure 2.0 shows the plan of the second flight of a staircase spanning 7.0m between supports. What size ridge beam for 210 rafters. Mono stringers are used primarily in residential and light commercial application. This allows the step landing to extend longer along the stair, which provides additional support for structural components within a building such as HVAC ducts, plumbing piping and elevator shafts. Beams are supported by the columns and run the width of a pergola or shade structure. For a 210 stringer, the maximum tread width you can achieve with a 7-inch rise and still maintain a 3.5-inch throat is about 10 inches if you use the maximum stair tread nose allowed by the building code of 1.25 inches (the stringer itself would have a run of about 9 inches). No moments are transferred throughout the support, hence their structural type is known as simply supported.. Span also makes a difference when it comes to selecting lumber size. Steel Stair Stringer Channels. Aghayere, Abi, and Jason Vigil. Scott How should stair support stringers be constructed and connected, what alternative materials can be used & what are the stair stringer building code specifications for strength & load bearing requirements. They have one stringer (a structural feature that supports the treads and risers) that runs down the center of the staircase. Q. In each case a primary beam/support will be required to support the stringer beam. How many stair stringers do I need on a deck that is 10ft long. 1. Codes & strength requirements for stair support systems; how to build safe stair stringers that don't sag, squeak, collapse, or lose their treads. OSHA estimates that there are 24,882 injuries and as many as 36 fatalities per year due to falls from stairways and ladders used in construction. Structural Wood Design: A Practice-Oriented Approach Using the ASD Method: 1-24. Photo: we see the addition of an intermediate support below a long stair stringer. An additional strength benefit of aluminum is that it has a higher yield strength than steel, making it more resistant to stress-induced failure. What Are The Advantages Of Subfloor? If a stair stringer adjustment makes one of the steps shorter than the others then that'd be a trip hazard and would be improper. They can boast a variety of features, including: No matter what space youre working with, our team can create a design that is both functional and complementary to the other features in your home or office. Lally Column vs Jack Post: Whats the Difference? Both their tolerances are defined by ASTM A 484, the laser fused execution has additionally the product standard defined by ASTM A1069. Alloys. Simplified Stair Building. The IRC provides guidance for how high the risers can be and how deep the treads can be. The design is suitable for prefabricated stair systems and can be utilized with a variety of stair railings. can you buy doxycycline over the counter in nz, Designing a Beam Strip Raft Foundation | Worked Example, Engineering Ethics- Developing a Fee Proposal, Cellular Raft Foundation | Worked Example, Do Engineers learn from Structural Failures or were a Weird Bunch, Designing a Reinforced Concrete Retaining Wall. The Strong-Tie LSCZ adjustable stringer connector features a G185 ZMAX galvanized finish for added corrosion resistance and requires the use of hot-dip galvanized fasteners which meet the specifications of ASTM A153. 2. Or, you may want to use longer and wider board style stringer beams to create a more ornate look for your staircase. Notched stair stringers are widely used and are acceptable if sufficient supporting strength is provided. ), Installation components beneath the tread are hidden, Self-supporting beam is attached to a finishing board upon arrival, 203 mm x 203 mm steel beam manufactured by precision laser cutting and welding, Attachment plate visible beneath the tread, Treads are bolted to the plate, which is welded to the beam, Spray-painted or powder-coated metal finish, Self-supporting beam is attached to a finishing board upon arriva, Steel tread support, visible or non-visible, With attachment plate for reinforced wall, Ideal for new constructions, prior to gyp-rock installation. The stairs collapse without warning. If youre interested in our single stringer straight stairs, then call Acadia Stairs design consultants today to get started! What is the most common use of a stringer beam? The Knife is a group you can rotate, change the size of, and even add or remove objects within (example - add a function curve for an advanced cut). My stairs (indoor) rest on the stringers. A better option is to drill a 1/4-inch hole at the corner of the notch and cut to the hole. It is acceptable and within building code guidelines to use either 210 or 212 dimensional lumber to create a set of stairs; however, a stair stringer should not be less than 3.5 inches wide at its narrowest point to provide adequate strength for the load the stairs will be supporting. The following austenitic grades are predominantly used for stainless steel structurals: 304, 304L, 316, 316L, they are defined by ASTM A276, ASTM A479 and ASME SA479. These structural components have a purpose in the construction of staircases that differs from their function on other structures. A. Stringer beams are typically made from steel, aluminum, or wood. More details are given below on this page and also, Watch out: see stair stringer and stair tread cleat or other stair tread support defects & hazards detailed Aluminum and glass will cost far more than a pine railing with pine balusters. My deck stair photo above shows very deep notching in a stair stringer (as well as multiple other safety hazards and code violations). The initial cost of stringers will vary depending on their size and the materials from which they are made. Step Size: 800mmx270mm. The cost of the stringer that you choose will depend on its size and the material it is made from. The connections of stair stringer to the risen-to platform, of treads to stringer, and of railings and posts are critical for safe stair construction. LCThat sort of detail is not discussed in building codes. The ideal material for a stair stringer is determined by the functionality of the staircase as well as the intended appearance. Cut stringers can be spaced no more than 18 inches apart, thus a 3-foot-wide staircase has three stringers, and a little broader set of stairs (say 3 feet 6 inches) requires four stringers. Russel Metals is one of the largest metals distribution and processing companies in North America. Greg Vanden Berge, 2012. A. At Acadia Stairs, we have worked on a wide variety of custom single stringer staircases, designing and building to the exact specifications of your space. The stringers must be spaced properly to support the size of the board selected for the treads. Calculate Fill in dimensions, mm: Opening height: Y Opening length: X Width of staircase: Stair thickness: Z Stair nosing: F Stringer thickness: A Supports thickness: B Above stringer stair height H Dimension: D Angle: U Amount of stairs: C Top stair is below the floor: SP Drawing in black and white: Change staircase direction: LR Calculate The steps are made up of a horizontal distance called the Tread and a vertical distance called the Riser. 203 mm x 203 mm steel beam manufactured by precision laser cutting and welding Attachment plate visible beneath the tread Solid wood treadsf Treads are bolted to the plate, which is welded to the beam Spray-painted or powder-coated metal finish Self-supporting beam is attached to a finishing board upon arriva Two open stringers Structural Design Elements -osha.gov/doc/outreachtraining/htmlfiles/stairlad.html. Stair stringers are commonly made of steel, aluminum, and various types of wood. Open the catalog to page 1. Wood Volume: 0.055 m3 Balustrade Handrail Width: 8 cm Handrail Thickness: 4 cm They are generally 4-5 cm thick and 25 - 40 cm deep. Manage Settings For example, you may need to use a doweled system to hold the stringer in place during installation. However, there are many different examples of over two hundred different concrete and steel staircase types that can be fabricated from a single design. For example, you may want to use stringers that are smaller in size to provide additional structural support where there is an aesthetic need. Thus you can use 210 ridge beam for 28 size rafters, although it will depend on span of the beam & the amount of roof load, so it is better to consult your architect. [14a] "Visual Interpretation Of The International Residential Code (IRC) 2006 Stair Building Code", The Stairway Manufacturers Association, [Portions of this document reproduce sections from the 2006 International Residential Code, International Code Council, Falls Church, Virginia. If I understand your question we cut off 5/8" of wood and add 5/8" of PVC - so the step rise should be unchanged. A. 1 Pages. Roof joists should be nominally 2" wide and 4" to 12" deep, although larger dimensions can be used. If the throat is too narrow, the stairs could fail, causing catastrophic injury. 1/No. By inspection, the maximum shear force is less than max. |Stair Stringer Spacing, 8. Instead, cut to the line with the circular saw, then use a hand saw to finish the cut. A 212 stringer with a wider throat will need fewer supports than a 210 stringer with a 2.5-inch throat. Suitable for exterior applications. WeekendBuilds.com is a participant in the Amazon Services LLC Associates Program, How to Cut Stair Stringers With a Framing Square, What Size Lumber for Deck Stair Stringers. This line should be no closer to the outer edge of the stringer than 3.5 inches to ensure proper structural integrity. Use Y10mm 200mm centers both ways (Top) (393mm2/m). Stringers are not identified in drawings during construction . Walers distribute weight over a wall or [], What Is A Splice Plate In Construction? Do I need to be licensed to install stringers? . Continue with Recommended Cookies. It is used for building commercial or industrial stairs when wide landings are not needed. Note: this is just one example table of allowable spans for RigidLam LVL stringers out of a larger range of LVL dimensions and tables provided by Roseburg FP. Fig 5: Marking of tread and riser on square frame. We had no idea there was so much to consider when purchasing stairs! A 210 board may not be wide enough to handle the larger notch while still maintaining a 3.5-inch throat. The stringers are 6 apart and usually situated at the center of the staircase, thick hardwood is used for steps. A. For the throat to be strong enough to support this load, it should be at least 3.5 inches wide, the same width as a 24. A lintel is an element of construction used to span or bridge a gap between two structural supports (commonly vertical columns). Size in Inches Weight Per Ft. Lbs Depth of Section Width of Flange Thickness of Web . tb-500 - Beam Design Guide for 20", 22", and 24" Depth 2.0E Microllam LVL; tb-305 - Resawing Microllam LVL, Parallam PSL, and TimberStrand LSL; tb-501 - Performance of Microllam LVL with Watershed Stability Overlay; tb-112 - Moisture Effects on Weyerhaeuser Engineered Wood Products and Oriented Strand Board; tb-310 - Use of Topical Coatings with Weyerhaeuser Engineered Wood Products The notches are combined with the stringer to support the stairs treads. Divide the length of the span in inches by 20 to find the appropriate depth of beam you need. . A steel I-beam can span lengths of up to 45' or more, but it all depends on the depth of the beam. Beam-and-slab staircase construction is common in concrete, cast-in-place concrete, precast concrete or steel structures. Versa-Lam laminated veneer lumber (LVL) beams and headers lead the industry in bending strength and E-value, offering better performance and longer spans. A solid, continuous steel beam that transversely separates the interior of a concrete span from its supporting abutments. In some cases in which there is living space under the stairs, it may make sense to use 1 x10 stringer, which will give you an additional couple of inches of clearance for the headroom.

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