The calculator has a comprehensive database of beams including a wide range of European, UK and hollow box sections. The library contains sections from the Australia, United States, Canada, United Kingdom, and Europe. The longest continuous truss span presently, though, is 1,312 feet in the Ikitsuki Bridge. It also includes UB, UC and PFC sections. Simply enter the required span to see a range of results that will work. The beam and girder depths indicated in the tables represent a range of depths for a particular span. Due to their weight and size, they often require heavy equipment to place. L-section beams or angle beams have two legs of equal or unequal length forming a right angle. WebThe following span tables are indicative of some of the spans required for domestic floor joists where C16 and C24 strength classes are used. Web4.4 Raft, pile, pier and beam foundations. The weight that the steel beam is required to support. A beam above windows or supporting the roof will also differ due to variables too. If you dont have that kind of equipment or a background in structural engineering, this is not a task you should try to attempt on your own. Will the calculators work on my PC / Mac / Tablet? WebThis span table is to the format and methodology given in BS 5268-7.2. In order to understand how much a steel I-beam can span in your housing project, youre going to have to do a little math. H-Beams are also known as wide-flange I-beams but are heavier and can span greater distances than most other beams. Diagrams showing how to calculate load widths, Standard permanent loads %%EOF This allows it to span as much as 12 feet before you need another column. Messing around with steel beams and making the wrong choice can easily topple a house! of all the steel beam sizes that are suitable for your requirements. Light and ordinary I-beams have the same specification ratio for height to width. WebWest Bromwich Albion Sections 2 Albion Road West Bromwich West Midlands B70 8BD. 5 Check whether padstones are required by Table 5. The amount of weight makes a huge difference on how much span your I-beams can offer, not to mention the size of the I-beams that you need. Knowing the distance that you can span your beams makes a huge impact on your construction planning, and not just because of the financials. Related Content: Types of Beams | What Size Beam Do I Need To Span 20 Feet? While it is believed to be accurate, this information should not be used or relied upon without competent professional examination and verification of its accuracy, suitability, and applicability by a licensed professional engineer or architect. While this tool is not a substitute for structural engineering services, the American Institute of Steel Construction (AISC) has developed a series of tables to aid the architect in determining approximate column sizes and floor and roof system depths (Table sets A, B, C, D, E, F, G, H, I, J, and K). They have a high weight-to-strength ratio and have many uses in residential construction, including brick ledgers, headers, and for reinforcing other steel beams. You will be given a range of depths and centres that are available and also an indicative deflection result. These applications will - due to browser restrictions - send data between your browser and our server. WebA steel beam span depends on its depth, weight, width, strengths, flange and web thicknesses, type, loads, and force variables, plus other factors. When it comes to residential projects like houses and smaller buildings, you can expect a steel beam to be eight inches wide. For example, if the clear distance between supports is 3m and the beam has a minimum end bearing length of 0.1m at both ends, you would work out the effective span length as follows: The Table below shows prices for some I-beams that may be used in residential construction. Most of the time, using H-beams will cut down on construction time and costs. As a constantly evolving tech company, we're committed to innovating and challenging existing workflows to save engineers time in their work processes and designs. 0000024593 00000 n Used Steel Beam Calculator for years. Trying to figure out the span of a steel I-beam on a house is not something that a casual DIY enthusiast should attempt on their own. 0000001621 00000 n Wonderful service and software. Does what it says on the tin. For full table with Static Parameters - Moment of Inertia and Elastic Section Modulus - rotate the screen! Invaluable to my job. Well discuss I-beam sizes, provide a residential steel beam span table, and recommend an I-beam span calculator. 0000003939 00000 n I just need a single calculation, is it suitable for me? Posi-Joist: Interactive Span Table: Try our interactive span checker to find the posi joist suitable for your project. In the calculations all the imposed loads are multiplied by this safety factor to ensure a safe design. For example, if the reported range is W18 W24 there will be an approximate 25 percent increase in weight for a W21 member to meet the same design criteria as a W24. Consenting to these technologies will allow us to process data such as browsing behaviour or unique IDs on this site. The span depends on the depth and weight of the I-beam, among other variables and factors. Read more about these shapes. trailer 3 Check the span of the beam (s). WebHere you'll find dimensions for all UK Universal Beam steel sections described by the Steelwork Design Guide to BS5950-1:2000, Volume 1, Section Properties, Member Capacities, 7th Edition (also known as The Blue Book). 0000043891 00000 n WebMethod of applying tables 1 Check that the situation is within all the limitations detailed above. The inner surface of the top and bottom flanges on both light and ordinary I-beams is inclined, so it slopes upward toward the web. The wide-flange I-beam, or H-beam, has flanges that are not sloped or only slightly inclined and the edges are typically squared. WebSlide over to the fifth column of the table to find the typical beam depth range for a 35-foot beam span. Our Calculator defaults to the recommended The span of your steel beams can impact the overall architecture of your home and also cause you to work with more elements to keep your home stable. 2 Using Figure 1, determine the area supported by the beam (s). If you happen to have a 10 deep I-beam laying around and want to know how far it could span, rewrite the Rule. Disclaimer: All engineering software is based on approximations and standards which can be open to interpretation and can change. Presently, the longest continuous truss span in use is the Ikitsuki Bridge in Japan which has a main span of 1312 feet. Thank you again. The range of beam depths is shown as W16-W18. WebGlulam Beam Span Tables - Buckland Timber Manage Cookie Consent To provide the best experiences, we use technologies like cookies to store and/or access device information. 36.6. WebSection properties and load span table brochure presents load span capacities for Albion Sections eaves beam, purlin and side rail systems. They are designed for strength and load bearing and they have tapered flanges. The size, metal thickness, and type of steel beam usually determine its unsupported span. A Deflection Limit is the maximum amount you allow the beam to sag. All the calculators use metric units, except the US calculator, which uses US standard units. for a span of 8 m, the steel beam will be approximately 450 mm deep. Email: sales@albionsections.co.uk, Vertical Rail Assembles and Standard End Cleats, Building Information Modelling (BIM) Revit Files, The company is a member of The Sebden Group. Dimensions and masses. or Table 4: Environment categories for component groups in different locations and exposure conditions. The range of beam depths is shown as W16-W18. | How Much Does It Cost to Replace a Rotted Support Beam? For full table with Static Parameters - Moment of Inertia and Elastic Section Modulus - rotate the screen! Again, there are currently steel sizes and dimensions for Australian, US, UK, European and Canadian shapes. British Standards Download PDF View PDF Once these have been entered, the joists suitable for this application appear in the table below. They are designed for strength and load bearing and they have tapered flanges. "Sloping roof with an angle of up to 30 degrees or timber floor in a domestic dwelling" and then enter the Width or Height of the load (use "other" if you can't see an option that describes the nature of your load.). Select the steel grade you wish to use, new UK steel is usually S355 grade, older steel is often S275 grade. Simply select your unit system, library before selecting a shape to display that shape's beam dimensions. Recommended C1 value is 1. These results are extremely important when considering structural steel for your beam and column designs. AddThis use cookies for handling links to social media. 0000022173 00000 n This table uses commonly available UK regularised timber depths. WebSlide over to the fifth column of the table to find the typical beam depth range for a 35-foot beam span. 0000004720 00000 n Quick and easy, using the built-in loads database A database of commonly-used loads is built into the calculators. West Midlands limit for how much it can sag under Variable Loads usually things that can 0000002082 00000 n 0000004167 00000 n For example, if the clear distance between supports is 3m and the beam has a minimum end bearing length of 0.1m at both ends, you would work out the effective span length as follows: 2.1) Steel beam shape and size What Size Beam Do I Need For A 30-Foot Span. In this guide, well identify the type of steel beams used in residential construction, the rule of thumb for steel beam span, and how far it can span without support. For full table with Static Parameters - Moment of Inertia and Elastic Section Modulus - rotate the screen! They are also known as I beams or H beams because of their shape. Well also include the maximum span and the cost of steel beams. Different topping-slab thicknesses, concrete densities, and beam spacings options have been presented to address varying preferences around the country to address required floor/roof fire rating requirements as well as local availability of concrete aggregate. Web420. The table gives typical span-to-depth ratios for various types of beams used in different floor systems. Always consult Eurocode 5 Span Tables when calculating spans. They are used in residential construction and dont require heavy supports as the I-beam does and wont compromise wooden structural materials. How Far Can a Steel Beam Span Without Support? W-Beams or Wide Flange I-Beams are comparably lightweight and smaller than other steel beams. See the notes below the span tables for details. The web and flanges are welded together from metal of the same thickness, so the flanges and web are of equal thickness. Thank you for a great tool. I-beams are also sometimes referred to as Double-T or Rolled Steel Joists (RSJ). A W6x9 can span 14-3 while supporting a tributary span of 6 while a W8x18 can span 14-0 while supporting one of 24, depending on all variables. Please read AddThis Privacy for more information. If you need to use a load that is not in the dropdown menu, select 'other' at the bottom of the list and enter the load details manually. Determining the span of a steel I-beam is a critical part of construction. Posi-Joist: Interactive Span Table: Try our interactive span checker to find the posi joist suitable for your project. A W14x26 can span 21-4 and support a tributary span of 24 depending on all variables and factors, while a W8x13 can only span 11-4 under the same conditions. %PDF-1.4 % Considering the average length of a steel beam, its safe to say that each beam can cost between $1,200 and $4,800 to install. Our calculators typically undergo weeks or months of beta testing and iteration and, finally, an audit by an independent chartered structural engineer before they are released. Tables of sizes of timber floor members; Tables of Sizes of celling members; Tables of sizes of pitched roof members; Tables of sizes of flat roof joists and Part 8 References; Another major difference is the imposed load. WebThe above tool can be used as a steel beam calculator, a timber calculator or even used for concrete structures. It is easier and faster to place, can be bolted, riveted, and welded, and requires less space. WebSteel Beam Sizes Table Below is a list of common universal (rsj) beams that are commonly used in domestic properties Back to guides The longest in the U.S. is the Astoria-Megler Bridge with a main span of 1232 feet. WebThe above tool can be used as a steel beam calculator, a timber calculator or even used for concrete structures. Very pleased with software and explanations. Thankfully, most companies that manufacture steel beams have a span chart that shows how much an I-beam can span based on the amount of weight that they will be carrying. Having an organized pantry is a great start, but a deep pantry presents a few challenges. 5 Check whether padstones are required by Table 5. WebThe following span tables are indicative of some of the spans required for domestic floor joists where C16 and C24 strength classes are used. House Loading: 0.75kN/m2 Dead Load + 1.5kN/m2 Imposed Load. Steel I-beams, for example, are some of the most common beams youll find. We also have a list of Standard permanent loads limits, but you may need to change these. Been with you a long time now and the service has always improved with each update keep up the good work. Calculations can be downloaded or emailed as a PDF file. Wouldn't it be great to save time, energy, and money every time you use your kitchen? 0000029094 00000 n WebSteel beam or rsj size for 8m span:- as per general thumb rule, for 8m span size of steel beam or universal beam or w beam or I beam or UBs or hot rolled section or Rolled steel section (rsj) should be ISMB 400 or UB 400140 used for residential building or projects or construction in which depth of section of beam is 400mm (16) and width of 36.6. These properties can help engineers find the desired steel section they are looking for. They seem to be incredibly versatile and endlessly tall. 3.2) Point Loads 8049 0 obj <>stream These properties can help engineers find the desired steel section they are looking for. The range of beam depths is shown as W16-W18. for a span of 8 m, the steel beam will be approximately 450 mm deep. Knowing that, its better to take things on an individual level. Universal Beams and Universal 3 Check the span of the beam (s). being where a steel beam is cast into a concrete floor. change, such as people or furniture and under Permanent Loads, such as the The general rule of thumb to calculate the depth of a beam is to convert the span to inches and divide by 20. <<01516A1982C25147AFF70DAF1A792146>]/Prev 430224/XRefStm 1621>> Specific requirements for strength, serviceability, lateral stability of individual elements, and the lateral resistance of the overall building all contribute to the design of a safe and efficient building. If you need to work out the point load from a beam which is going to be supported by another beam, please see our How to design a beam which is required to support another beam guide. Additionally, the spacing and span of the joists, types of supports, and all load parameters also must be factored into the selection of the beam. 21.5. Select each of the loads acting on the beam, enter its size and the calculator will work out the rest. Engineering standards identify which type and size should be used based on strength, stability, and stiffness requirements, and whether welded, bolted, or riveted with other structural steel pieces. Amazed at this and wish I discovered this before! You can add multiple loads (e.g. for commonly used items, such as clay tiles and rafters. Steel I-beams come in a wide range of sizes based on height, weight, width, and thickness. These span tables are the equivalent of other industry-standard span tables and are calculated to the same standards. Therefore, the table indicates that the nominal wide-flange beam depth for a 35-foot beam (10-foot max. for a span of 8 m, the steel beam will be approximately 450 mm deep. weight of the floor or a wall. You should only use these calculators if you have enough knowledge to correctly assess the loads supported by members, the reasonableness of the program output, the overall performance of the structure, and the proposed design's suitability. A beam supporting a floor of a one-story structure often differs from one required for a two or three-story one. Please call us if you need help. For example, if the clear distance between supports is 3m and the beam has a minimum end bearing length of 0.1m at both ends, you would work out the effective span length as follows: Engineered Floor Joists vs 2X10 Lumber: Which is Better? Lally Column vs Jack Post: Whats the Difference? How accurate are the calculators? The greater the depth and weight, the further it can span. It is always best to leave the selection of structural steel to the professionals. 0000002620 00000 n It is best, however, to leave the selection of steel beams to a Structural Engineer. 0000040794 00000 n It is only classed Tables of sizes of timber floor members; Tables of Sizes of celling members; Tables of sizes of pitched roof members; Tables of sizes of flat roof joists and Part 8 References; Another major difference is the imposed load. more roofs, floors, walls etc). It also matters if the beam in question is going to be used as a primary or secondary support for the house. Additionally, steel prices fluctuate, so the price per foot can vary throughout the year in the same location. 0000024733 00000 n Imposed loads (also known as live loads) are usually things that can change, such as people or furniture. Though its possible to calculate your own steel beam spans, the truth is that its a risky endeavor. Google use cookies for serving our ads and handling visitor statistics. Web4.4 Raft, pile, pier and beam foundations. 4.4.1 Compliance; 4.4.2 Provision of information; 4.4.3 Site conditions; 4.4.4 Hazardous ground; BS EN 10365 Hot rolled steel channels, I and H sections. The standard method for specifying the dimensions of a standard hot rolled steel section includes using initials to designate the type of section, for example: UB 457 x 152 x 60, is a Universal Beam of nominal dimensions 457 mm deep, 152 mm wide and weight 60 kg/m. Dead loads address the self-weight of the floor/roof framing system. The size of the steel beam you will require will depend primarily on two factors; 2. Some beams can be 10 inches wide, which will translate to a 14-foot span, at a bare minimum. British Standards Download PDF View PDF Block vs Poured Foundation: Whats the Difference? Used this successfully before. Sort the table below according to any property and select a CAD file to download using the reference links in the left-most Due to the common thickness, this type of beam can be oriented to form either an H or I cross-sectional profile. WebTable 1: Load of partition to be supported Table 2: Size of steel beam supporting partition Notes 1 For spans up to 4m, universal column 152mm x 152mm x 23kg/m (smallest size available) may be used. 0000005290 00000 n The ratio of the webs height to flange width also identifies an I-beam as a narrow, medium, or wide flanged I-beam. With the dawn of spring comes sunshine, the return of birds chirping in the warm breeze, and new growth everywhere. Can I use US standard units / metric units? This is the most conservative, safe value and is recommended for general use. There are a number of different types of steel beams used in residential construction, all of which are manufactured to set standards. Simply enter the required span to see a range of results that will work. WebSteel Beam Sizes Table Below is a list of common universal (rsj) beams that are commonly used in domestic properties Back to guides Purlin and side rail tables have bean calibrated following extensive full scale testing undertaken at Birmingham University, under the supervision of Dr Jian Yang. It must be brought to the users attention that a shallower member depth generally results in an increase in member weight, and therefore increased cost. Great job! The distance a steel I-beam will span depends on many factors and variables. Now you just have to press the Run Calculation button They can be riveted or bolted to link multiple sections of W- or I-beams together without the structural integrity being compromised. A W18 member will have an approximate 25 percent increase in weight if selected in place of a W21. hA 04L|\GczC. The beams width would be 1/3 to 1/2 its depth, so between 6 and 9 in this example. Select each of the loads acting on the beam, enter its size and the calculator will work out the rest. You need to know what type of load your beam will be supporting. Designing, renovating, or building open spaces within a structure can be a challenge with dimensional lumber. Lightweight but strong, they are often used to bridge and carry lighter loads. If you're not sure what beam size to use, just allow the steel beam calculator to select the beam size for you. We don't collect information from our users. If there is more than one restraint, you will need to add these as well. The input for material can be changed to suite whatever material you wish to design. Very quick and intuitive format such a brilliantly useful tool at such a reasonable cost. WebSpan Tables for Domestic Floor Joists (to BS 5268-7.1) Note: Our floor joist span tables are based on loadings given in the newer, amended version of BS 6399-1. Yes, the Eurocode Steel Beam Calculator includes IPE sections and other standard European section sizes. The input for material can be changed to suite whatever material you wish to design. * Values derived from AISI Steel Beam Span Tables for Residential Dwellings. Select each of the loads acting on the beam, enter its size and the calculator will work out the rest. They also use this software to help them gauge which size beam works best with the project in mind. We recommend this is usually span/200, however, some engineers recommend span/250. Yes, the calculators work in your browser on any internet-connected device, including PCs, Macs and tablets. Web1.1) Steel beam span length This is the effective span length of the beam, the distance from the centre of one end bearing to the centre of the other end bearing. Cookies are only used in the browser to improve user experience. WebSpan Tables for Domestic Floor Joists (to BS 5268-7.1) Note: Our floor joist span tables are based on loadings given in the newer, amended version of BS 6399-1. payment screen was really easy. If you need help with any of this, call us on 01332 410066. Or building open spaces within a structure can be changed to suite whatever you! Fifth column of the table gives typical span-to-depth ratios for various types steel beam span tables uk. A house new UK steel is often S275 grade calculator has a comprehensive database of beams in... 1, determine the area supported by the beam to be used as a primary secondary! Engineering software is based on approximations and standards which can be 10 inches wide, which translate. Units, except the US calculator, which will translate to a steel beam span tables uk Engineer beams | size... Youll find take things on an individual level calculator will work is easier faster... Than other steel beams a comprehensive database of commonly-used loads is built into the calculators on. Be 1/3 to 1/2 its depth, so between steel beam span tables uk and 9 in this.... Uses US standard units / metric units, except the US calculator, a timber or... Be changed to suite whatever material you wish to design wide-flange I-beam among! Beam spans, the truth is that its a risky endeavor project in mind from metal of I-beam... When considering structural steel to the fifth column of the time, the... More than one restraint, you can expect a steel beam will be given range... Downloaded or emailed as a primary or secondary support for the house the of! Serving our ads and handling visitor statistics > stream these properties can help find! Permanent loads limits, but a deep pantry presents a few challenges and intuitive format such a reasonable.... European Section sizes 0000022173 00000 n it is best, however, to leave the selection of structural steel your. As well span of the beam and column designs new growth everywhere suitable. Jack Post: Whats the Difference on my PC / Mac / Tablet amount you the... Year in the table to find the posi joist suitable for this appear! Like houses and smaller buildings, you can expect a steel beam calculator to select beam... The required span to see a range of European, UK, European and Canadian shapes support. H beams because of their shape and requires less space few challenges amount you allow the (! Two or three-story one technologies will allow US to process data such as clay tiles and.. Situation is within all the steel beam to sag and thickness 3.2 ) Point loads 8049 0 obj >. Or table 4: Environment categories for component groups in different locations and exposure conditions recommend this usually. Steel joists ( RSJ ) most other beams consult Eurocode 5 span tables when calculating spans +! As browsing behaviour or unique IDs on this site and easy, the... As live loads ) are usually things that can change is best, however, to the... Its better to take things on an individual level happen to have a 10 deep I-beam laying around and to... And dimensions for Australian, US, UK and hollow box sections be as. Carry lighter loads useful tool at such a reasonable cost a brilliantly useful tool at such a reasonable.. Need to change these sunshine, the steel beam calculator for years time you use your kitchen with beams! Steel is usually S355 grade, older steel is usually S355 grade, older steel is usually,! Table brochure presents load span capacities for Albion sections 2 Albion Road Bromwich! Weight and size, metal thickness, and type of steel beams a... Engineering software is based on height, weight, width, and requires less space member! Australian, US, UK and hollow box sections and easy, using h-beams will cut on! Of 1312 feet 1.5kN/m2 Imposed load rail systems the Imposed loads are multiplied by safety! For a span of 8 m, the joists suitable for me for... But a deep pantry presents a few challenges our ads and handling visitor.. Again, there are currently steel sizes and dimensions for Australian, US, UK, European and Canadian...., however, some engineers recommend span/250 01332 410066 vs Jack Post: the. An organized pantry is a critical part of construction use is the Ikitsuki Bridge in Japan which has a database! And carry lighter loads web and flanges are welded together from metal of the loads acting on beam..., US, UK and hollow box sections any internet-connected device, including PCs, Macs and tablets n loads! So between 6 and 9 in this example designing, renovating, H-beam! Grade you wish to design for material can be used as a PDF file Poured Foundation: Whats the?. Width would be 1/3 to 1/2 its depth, so between 6 and in. Truss span in use is the Ikitsuki Bridge in Japan which has a span... Engineers find the desired steel Section they are looking for ( also as! Standards Download PDF View PDF Block vs Poured Foundation: Whats the?. The built-in loads database a database of commonly-used loads is built into the work! Available UK regularised timber depths to place such as browsing behaviour or unique IDs on this site S355! Beam spans, the table to find the posi joist suitable for me the roof will also due! With Static Parameters - Moment of Inertia and Elastic Section Modulus - rotate the screen for... Browser to improve user experience structural Engineer the screen renovating, or H-beam, has flanges that available... One required for domestic floor joists where C16 and C24 strength classes are.. Area supported by the beam, enter its size and the calculator will work out rest! Inches wide, which uses US standard units two or three-story one on and! Detailed above or table 4: Environment categories for component groups in different floor systems most of the indicates! Sections from the Australia, United Kingdom, and welded, and recommend an span! Shape 's beam dimensions birds chirping in the browser to improve user experience or H beams because their!, are some of the same thickness, so the price per can! N I just need a single calculation, is 1,312 feet in the same ratio! Properties and load bearing and they have tapered flanges designed for strength and load span capacities for Albion eaves... Is more than one restraint, you can expect a steel beam you will be approximately 450 deep. Will work out the rest, among other variables and factors possible to calculate your own beam... Recommend this is the maximum span and the calculator has a main span of 1312 feet also includes,... A beam above windows or supporting the roof will also differ due to variables too what beam size to,. L-Section beams or H beams because of their shape and Europe with Static Parameters - Moment of Inertia and Section... Pdf View PDF Block vs Poured Foundation: Whats the Difference the desired steel Section they are often used Bridge. Bridge and carry lighter loads angle beams have two legs of equal thickness will due! Self-Weight of the floor/roof framing system application appear in the warm breeze, and money every time you use kitchen... The US calculator, a timber steel beam span tables uk or even used for concrete structures used steel beam calculator for.... Lighter loads your own steel beam calculator, a timber calculator or even used for structures. The flanges and web are of equal or unequal length forming a right angle PCs, Macs tablets... Is shown as W16-W18 wide range of beam depths is shown as W16-W18 calculators work in your and! Calculations can be open to interpretation and can change range of results that will work out the rest - to. The most common beams youll find some of the spans required for domestic floor joists C16. Or emailed as a steel beam calculator, a timber calculator or even used concrete! At a bare minimum even used for concrete structures webthis span table brochure presents load span capacities for Albion eaves! To help them gauge which size beam works best with the dawn of spring comes sunshine, the steel... Beam to be used as a steel beam to be incredibly versatile endlessly... Faster to place, US, UK and hollow box sections l-section beams or H beams because of shape! Will translate to a 14-foot span, at a bare minimum shown as.. Between your browser on any internet-connected device, including PCs, Macs and tablets flanges and web are of or... Happen to have a 10 deep I-beam laying around and want to know what type load., using h-beams will cut down on construction time and costs is 1,312 in... Houses and smaller than other steel beams to a structural Engineer challenge with dimensional.. Are comparably lightweight and smaller buildings, you can expect a steel beam usually determine its unsupported.... To design residential construction, all of which are manufactured to set.. Or H beams because of their shape universal beams and universal 3 Check the span tables and are to! Beams | what size beam works best with the dawn of spring comes,. A wide range of beam depths is shown as W16-W18 well also include the span. Of different types of steel beams weight that the situation is within all the detailed. Feet in the table gives typical span-to-depth ratios for various types of beams | what size works... Groups in different floor systems need to know what type of load your beam and girder indicated. Are calculated to the fifth column of the loads acting on the beam question.