Beam size for 18 foot span. Rafter size for 18-foot span.

Beam size for 18 foot span See more Wood beam size for 18 feet span. Initial research has shown 3-14" LVL beams to cover that span but we would like to keep the The pergola beam size for a 16-foot span is 2″×10″ which is typically used. StructuralEng. Over 35 years of Structural Engineering experience. I am assuming the chart has a safety factor built in. The size of the ridge beam needed to span a 18 foot should be 12 inches deep and 8 inches wide. g. For example, you can span a #1 I need LVL beam size for an 18 foot span to replace the wall between the kitchen and dining room in a two story. As per general experience and thumb rule, to calculate the required and necessary depth of beam, divide the span length Use these simple calculators to size Trus Joist TimberStrand LSL, Parallam PSL and Microllam LVL beams and headers and Treated Parallam Plus PSL deck beams and columns. For example, if a 2×8 beam has a span of 16 feet and supports a dead load (weight of the What is a flitch beam and can it be used for a 24 foot span? A flitch beam is a composite beam made of wood and steel plates. Then you divide this by two to give a supported length of 12 feet. If you include a ceiling of some sort then go 12 inches on For 24 foot span, you should use a minimum of 4-2×18, 18”*24” or 8*8 size beams. No matter what the specs say. I want to use only 2 post( 6'x6') per side , at 16 feet between RSJ steel beam size for 3m, 4m, 5m, 6m, 7m, 8m, 9m and 10m span. Under the What size beam do I need for a 10 to 12 foot span? size of beam and their depth depend on span between two column and load acting on beam. A 5x10 is 500. Steel H September 18, 2023. When it comes to making structural changes or adding space to a room, proper support is crucial. Length Im building a pergola to my already existing deck and with the setup of my deck i have to run a 16 foot beam from one end to the other. using standard 9″ thick walls, size of an RCC Typically for a 18 foot span you will need 2″×8″ size of ceiling joist made of #2 spruce – pine- fir when spaced 12 inches apart. B. This table is for residential construction only and is meant only for the purposes of initial estimation. Input the length of the beam, type of wood, and the load type to get an accurate load capacity ENGINEERED WOOD PRODUCTS (EWP) LVL SPAN AND SIZE CHARTS. Contractor's Assistant chat. What size do I add to the span of 18 feet: As a general rule, a joist made of engineered lumber measuring 1-3/4″×11-7/8″. I am For example what size lvl beam for a 20 foot span, as per general thumb rule, for a 20 foot span, size of LVL beam or GLULAM should be (20×12)÷20 = 12 inches deep and width of LVL beam = 12÷ 4 = 3″, which is nearly equal as 3-1/2 the first part of the formula is JUST based on beam size. As suggested call a lvl supplier or you can use the span tables in the code book. 5 12 pitch. there are 12 ft joice on either side holding up a second floor. What size Glulam for 24 foot span. On the other hand, an 8×8 beam may be overkill for a simple 2x10 header for 9 foot span. Typically in residential buildings or any other projects, a wood beam size of 3-2×16 or 6×16 (3-nail 2×16) is required for 18 feet span. For a 15 -16 foot span, 2×8 size of rafter will be required. 4 lbs/ft. Try it out at Decks. The size of I-joists needed to Rafter Span Tables - Use these tables to determine the maximum span of a rafter, given the size, spacing, species, and grade of lumber. You will need to know the length of the joists bearing on the beam (referred to as ‘supported length’) but looking at the span tables in What size LVL do i need to span 18 feet | LVL beam size for a 18 foot spanThe size of Laminated Veneer Lumber (LVL) needed to span 18 feet depends on several Includes size and spacing tables for load bearing and links to related articles. What I need to know what size steel beam I will need to carry a 24 foot 6 in 12 Generally Steel beam size represented by dimensions of web × flange × weight per unit length, measured in mm or inch such as size of steel beam ismb150 represented as 150 × 75 or I would like to find a reference for maximum span and sizing with standard (such as SY pine) lumber for beams and joists. The cover will consist of either a ledger board 18’ is a big span mate. If smaller, beam will sag ugly! Better design with truss 2 feet deep or more depending on snow load. 125” deep. "I" beams or "H" beams are sold in But getting the right beam size is important. You will need to know the length of the joists bearing on the beam (referred to as Steel beam or rsj size for 24 feet span:- as per general thumb rule, for 24 feet span size of steel beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel joist For example, for a 24 foot wide house with a center floor beam, the total supported length of the floor joist is 24 feet. the span is 10 ft and will replace a load bearing wall on the first floor. GLULAM BEAM SIZES and SPAN CHARTS for PATIO COVERS EXPERT Q&A. The full Size your deck beams and headers with our easy-to-use span table, which allows you to cross reference the post spacing and joist length to determine the right deck beam size. 2020. You must first get four nailed 2×16 (4-2×16) or an 8×16 size to span 20 feet. Modified 2 years, 2 months ago. Expert. By chatting and providing personal info, you understand and agree I need What size header for 10 foot span. I have a two story house with basement. With a 3/12 pitch. live load of 40 psf = 28800 pounds. View Image. The No, you cannot use the same beam for a 27-foot span. 5/12. com. The beam is 4” wide and 4. Cross-sectional Dimensions: The width, height, and shape of the beam cross-section also play a role in its capacity. This table is simply a sample and may not be valid for your region. By chatting and providing personal info, you understand and I have an 18 foot patio with a 14 foot span and I am trying to understand what size glulam I Does anyone have a link to span tables for I beams. These small areas are usually door opening on the interior and people are trained that these areas are the strongest place in a house to be in the case of an emergency. So if the span of the Typically for a 18 foot span as a rough estimate, you could consider using a 12″×15″ RCC beam, 9-10″ GLULAM or LVL (laminated veneer lumber), a triple 2×12 wood beam or a double 2×14 In general, the size of the LVL beam for a residential building should be 16-18" deep for a 30 foot span, 14-16" deep for a 26 to 28 foot span, 12-14" deep for a 22 to 25 foot span, 10-12" deep for a 18 to 21 foot span, 8-10" deep for a 14 to 17 Use this wood beam span calculator to check a wood beam of a particular size and length to see if it can support a given uniform linear load by comparing its allowable and required bending and shear stress. The header size required for a 10 foot span (opening) ought to be double 2×10 or 4×10, which includes a 10 inch depth and a 4 inch width. applications I am about to put up our new shop. Typically for a 18 foot span, the size of LVL (Laminated veneer lumber) need to be 10-12 inches deep and 4 inches wide. Currently have 3- 6 X 6 beams holding What Size beam do I need to cover a 24-foot span with no hardly any weight. The total area for the roof is 20ft x12ft ( regular roof shingles to match the house) . On top of the posts is a 23' beam of unknown width and 1. Save Share Reply Quote What size beam can span 25 feet? For 25 foot span, size of simply supported beam for 2-3 storey residential building, using thumb rule, is about 15″×18″ in which beam What size LVL for a 24 foot span, walkereng. It can be used for a 24 foot span, but the size What size lvl beam needed to support a 16-ft span? NOTE: 2 story residential Louisville,, floor joist 2x8 at 16 oc, Tim G. What torque value for bolts that are holding a steel beam to reinforce a wood floor beam. Second off just because it's a 12-18" beam doesn't mean it will support the loads the OP is looking for. 18’ is a big span mate. I am wondering what size beam I need to span 33 feet in a garage to eliminate any posts. Column size for 18 feet span g+1. 16,765 Satisfied Customers. The garage is 24 feet wide. Reactions: Nealtw. As per general thumb rule, for a 12 foot span, size of LVL beam or GLULAM should be 6 to 7 inches deep and 3 inches wide, thus you need something like a 6-7″ GLULAM or LVL to span up to 12 Spans - I had planned on 4 supports, the beams will sit on a pier/post driven into the hill and then two telephone poles 5 ft from each end, leaving a center span of 6 ft. W x D^2 (width times depth squared) So JUST that variable gives an 8x8 beam a # of 512. All covered with 1/2″ OSB. It has been my experience to never use a beam smaller than a two ply 2 x 8. The wall is an interior wall no roof load Contractor's Wood beam size for a 22 foot span. I'm not going to decide on final dimensions until I Now, we can use this maximum bending moment value (160 foot-pounds) to refer to a beam span table, which shows the recommended beam sizes based on span length and load. There are several beam span tables for all the species of wood. For If beam spanning is 30 feet in length, then their depth = (30 × 12) ÷ 20 = 18 inches, rounding it to 18 inches and width is 18/3 = 6″, thus you would need 5 1/2″ × 18″ size of Glulam beam for 30 What size laminent beam should i Use to span an 18 foot opening for a one story single family home By chatting and providing Sizing a beam to span an 11 foot clear opening on load header size for a 18 ft. So the A 2" by 10" 16" on center will work for 20 ft 8 inches. According to basic rules and guidelines for an 18-foot span, we need a 2×10 size rafter, and rafter-to-rafter spacing should be 16″ OC. Thumb rule for Glulam beam:– size of Glulam beam represented by their width and depth, as per thumb rule & general guideline, depth of the Beam size for 20 foot span. Ask Question Asked 4 years, 5 months ago. The wall is an interior wall no roof load Contractor's The size of the reinforced beam for a 32-foot span is 12′′ x 24′′ or 16′′ x 18′′ GLULAM or LVL, or 2′′ x 18′′ dimensional lumber or wood beam at 16′′ from the center as floor 24' x 30' = 720 sq ft. Steel beam or rsj size for 20 feet span:- as per general thumb rule, for 20 feet span size of steel beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel joist 2D and 3D Ghar ka Naksha banane ke liye sampark kare What size lvl beam for a 10 foot span. Anyhow, the shop is 60'x100'. 2 story house. I am having 3 6x6 posts spaced 10' apart. Wood beam size for a 20 foot span. As per general thumb rule, for 30 feet span size of steel beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel joist (RSJ) should be ISMB 450 or UB Customer: Hello, my name is Marc i need to know a steel beam size to span 16 feet. Rafter size for 18-foot span. You will need to know the length of the joists bearing on the beam (referred to as Size your deck beams and headers with our easy-to-use span table, Dimensional Lumber Deck Beam Spans Supporting a Single Span of Joists with or without Overhangs: Customer: I need LVL beam size for an 18 foot span to replace the wall between the kitchen and dining room in a two story colonial. You're reducing the 22-ft span down to about 17-18ft. For Sizing deck beams got a lot easier with the publication of the 2015 International Residential Code. For a 18 foot span, you will need atleast 3-2×16 or 6×16 size of wood beam. So, you may 1 have an 18 foot span and want to use a 2 ton roller hoist in the center on an I beam or an H bean Which every would be. 3 psf. Thus, a 2×10 size of lumber can allow to span 18 feet. Thus, a 3 nailed 2×16 or 3-2×16 or 6×16 wood beam can allow to span 18 feet. This is in Hawaii so no snow. Save Share Reply Quote 18’ is a big span mate. The lengths and sizes of joists vary depending on the species and quality of the lumber used. Luckily, there is a simple solution that you can use to figure out the correct size. Do you know the floor load on the beam? I replaced 4x4 posts (were on 8' centers) in my garage with Sizing an I-beam for overhead hoist 05-10-2017, 04:42 PM According to the chart a S8 x 18. As per general thumb rule, for a 20 foot span, size of wood beam or lumber joist should be 2×14 which placed at 16″ apart from So beam size for 8m span is 12″×18″ (300mm × 450mm) in which depth of beam is 450mm and width is 300mm, using 2nos of reinforcement size T16 at top, 2nos of reinforcement size T16 at bottom and 2nos of T12 as crank bar of Fe 500 What size lvl do i need for a ridge beam to span 22 feet on a 3 /13 pitch with no collar ties? By chatting and providing personal info, you understand and Have existing 18 ft 4x10 ,would what size beam do I need to span 21 ft. I’m building a carport 40’x28’ with 8-12 pitch on a gable roof. The deck is 12 feet by 16 feet. For 18 feet span between two column, this general thumb rule, we will assume a structure of 1 storey/ground floor/1st What size beam do i need for a 21 foot span. Save Share Reply Quote How much weight the beam needs to support is a primary concern when choosing a steel beam. Keeping in mind our general thumb rule, you can get the size of a beam of a 20-foot span. Calculator is for use in U. In zip code 19006, the allowable bending stress for wood Importance Of Choosing The Right Size Beam. The beam would need to be at least 24 inches deep to support the load. Deck builders can now refer to Section R507. Will use metal roofing. but a common A beam is a structural element that is used to span distances and support loads. The interior dimensions I need a steel beam that needs to span 24 foot. As per general thumb rule, for a 10 foot span, size of LVL beam or GLULAM should be 6 Based on common experience and rule of thumb to calculate required and necessary depth of beam divide span in mm by 18-20 e. 6 Deck Beams and Table R507. For 20-foot spans, the wood beam has to be at Here’s a general guideline for the size of engineered wood beams for the given spans: For example:-For a 20-foot span: You might need an LVL or glulam beam with dimensions like 3. I'm looking for help on planning a Joists are technically beams that typically spans relatively short distances compared to beams and are made of wood, steel, or engineered wood or lumber. RCC beam size for 21 feet span:- for 21 foot span, size of reinforced beam for 2-3 storey residential building, using thumb rule, is about 10″×20″ in For a 20 foot span, wood beam needs to be minimum 18 inches deep. I need to get a handle on the sizing here. One of the key factors to Column and beam size for G+3 building. Support posts are planned 12 feet from each end. I was thinking a Steel beam; LVL beam #1. According to the thumb rule and general guidelines, it is recommended to use a 2×10 size wood beam for pergolas Determine the maximum weight your LVL beam can bear without sagging or breaking. Roof pitch is 4. it will be supporting second floor bedrooms and attic joists For a 16 foot span, you will need atleast 3 Recently purchased a cottage build in 1993 and am gutting it to repair many "issues" including what I think is an undersized beam supporting joists for a second floor sleeping area (2 bedrooms). For heavier loads, consider using I need to size a beam. I'll use 3 6x6 posts on the What size Glulam for 20 foot span. Viewed 7k times 0 . So you would need Moreover, the pergola beam size for a 14 to 16-foot span need to be 2×10, while the pergola beam size for a 18 to 20-foot span need to be 2×12. I'm in the process of making a carport with By chatting and providing personal I have an 18 foot patio with a 14 Joists are technically beams that typically spans relatively short distances compared to beams and are made of wood, steel, or engineered wood or lumber. For a 18 foot span, size of wood beam should be 4- 2×16, or 8″×16″ or 4 nailed 2×16 which used for residential building or projects or construction in which depth of section of beam is 400mm (16″) What size beam do I need? The size of your beam depends on the length of the span and load it is meant to take. Here 2 is the width of the What size header do you need for 10′, 6′, 8′, 12′ &16 foot span load bearing wall depends on several factors like building code, load, grade and species of wood and construction Customer: I need LVL beam size for an 18 foot span to replace the wall between the kitchen and dining room in a two story colonial. If you are considering a 20-foot span, there is a certain size beam that is required. This span table excerpt shows two possible sizes of built-up floor beams (2 X 10 and 2 X 12). For a 18- 20 foot span, 2×10 size of rafter will be necessary & for a 24 foot span, Subscribe our Youtube Channel. On top of the posts is a 23' beam of unknown width and First off I'm not just guy on the internet. 12,038 Satisfied You can use a W4x13 (50 ksi) steel beam for your 16’ span beam. For a 30-foot span, a multiple-ply 2×12 or engineered wooden beams like LVL can be used. What size beam do I need for a 10 to 12 foot span? How Size your deck beams and headers with our easy-to-use span table, which allows you to cross reference the post spacing and joist length to determine the right deck beam size. So, you would need something like 4 What I need to know is what size each of the beams spanning the sides need to be to support the roof. 6 Deck . Typically for a 22 foot span, the size of wood beam need to be triple 2×14 (or 6×14) lumber used for residential building or projects or construction in which As per general rules and guideline, for a 10 -12 foot span, generally you will need 2×6 size of rafter. 0. Snow load Rocky. The appropriate size of the beam for a 24-foot span depends on various factors such as the What size ridge beam do i need for a 18-foot span. Use an online calculator to determine What Size Wood Beam Will Span 10 Feet? To span 10 feet, a wood beam typically needs to be at least 2×8 or 2×10, depending on the load. Consulting with a structural engineer is essential to This is the most suitable rafter size for a 16-foot span. For heavy roofs or in areas with substantial snowfall or What size lvl beam for a 18 foot span. On previous projects, I have been supplied a Formula of Glulam Span Calculator Bending Moment. 1/2 is supported by beam in center = 14400 lb and there's a raceway for the HVAC plenum down the truss centers. 4,868 Satisfied Customers. What size laminent beam should i Use to span an 18 foot opening for a one story single family home By chatting and providing Customer: what size laminent beam should i Use to span What size lumber for a 18 foot span. barry2020 Discussion starter. By inputting specific values such as load, span, material The headers and beams in the snow load size selection tables (Tables 1-4, 7-10 and 15-18) have been sized using the design roof snow load shown in the subheading for each table. VERSA-LAM ® laminated veneer lumber (LVL) beams and headers eliminate twisting, shrinking and splitting, What is the proper beam sizing/span and pier spacing for a 10'x16' cabin? 3. Thumb rule for Glulam beam:- size of Glulam beam represented by their width and depth, as per thumb rule & general guideline, depth of the ENGINEERED WOOD PRODUCTS (EWP) LVL SPAN AND SIZE CHARTS. A critical aspect of structural engineering is calculating the maximum bending moment to ensure the structural integrity of Thanks in advance for any suggestions/tip on getting a beam sized that would only need support on either end. What size beam do I support a 24 foot Architecture Plans and Structural Designs - 18 foot lvl beam enough?? - I will try and put this as simple as I can. Thumb rule for Glulam beam:– size of Glulam beam represented by their width and depth, as per thumb rule & general guideline, depth of the You will need atleast 10"×12" size of rcc beam, or 3- 2×12 or 3 nail 2×12 size wood beam, or 3 1/2"× 7 1/4" size LVL beam, or UB 250 ×125 (10″×6″) or W10 size steel beam, or 3 1/2"× 7 1/4" size Glulam beam for a 15 foot span Steel beam or rsj size for 24 feet span:- as per general thumb rule, for 24 feet span size of steel beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel joist What size Glulam for 16 foot span. Typically in residential buildings, an RCC beam size of 12″ × 20″ (or 300 × 500 mm) is required for a 20 foot span. A wider and taller beam will generally have a higher in Calculators Published August 18, 2024. The following table lists some of the most common types of beams along Two steel beams will span the 42 foot dimension. span. You As per general thumb rule, for a 25 foot span, size of LVL beam or GLULAM should be 12-14 inches deep and 4 inches wide, thus you need something like a 12-14″ GLULAM or LVL to What size lvl beam for a 12 foot span. It was built in 1980. The size of the beam depends on the intended load it will have to bear. A 4×8 wood beam can span up to 12 feet without support, depending on load and wood type. The beam is going to be flush to Size your deck beams and headers with our easy-to-use span table, which allows you to cross reference the post spacing and joist length to determine the right deck beam size. The section of wall would have to be replaced with a 17 foot beam. Is like build a gantry crane and would like For 26 foot span, size of reinforced beam for 2-3 storey residential building, using thumb rule is 12"×24" or 14-16″ GLULAM or LVL, 2×16 dimensional lumber/wood beam at 16″ apart from I need help in calculating the size of the beam that will support the rafters. A 40-foot If you’re using a wood beam, you’ll need to factor in the weight of the beam when choosing the size. 4 beam should work. While a 4×6 beam may be suitable for a small garden pergola, it is not sufficient for larger structures. So if the beam span is 20 feet, the depth of the LVL or Glulam beams have ability to span long distance due to their dimensional stability and cost competitive value, makes and ideal option for garage door headers particulars, particularly for It isn’t always easy to calculate the perfect size beam needed to span a 30-foot distance. 5 What size lvl to span 10 feet. VERSA-LAM ® laminated veneer lumber (LVL) beams and headers eliminate twisting, shrinking and splitting, You will need atleast 12"×18" size of rcc beam, or 4- 2×16 or 4 nailed 2×16 size wood beam, or 3 1/2"× 11 1/4" size LVL beam, or UB 300 ×140 (12″×6″) or W12 size steel beam, or 3 1/2"× 11 I'm looking into building a covered patio and am having a bit of difficulty finding the proper beam size required for the spans between posts. I am looking to What size lvl beam for a 30 foot span:- as per general thumb rule, for a 30 foot span, size of LVL beam or GLULAM should be 16-18 inches deep and 4 inches wide, thus you need something Depth of a beam is going to be critical, if you want room to move beneath it. Before determining the maximum spans for joists and Steel beam size for a 15 foot span:- as per general thumb rule, for a 15 foot span size of steel beam or universal beam or w beam or I beam or UB’s or hot rolled section should be ISMB I wanted to double check the size of a beam recommended by an online structural engineer. Customer: i need to size a beam. But not as bad as an oak beam of the same size What size steel beam do I need for a 18 foot span | Steel beam size for 18 feet span As per general thumb rule, for 18 feet span size of steel beam or univer I want to build a patio cover. You can also use a W6x16 (50 ksi) steel Deflection is how much a beam sags in the middle when loads are applied to it. I am removing a partial bearimg wall and putting in a full lenght beam instead over 18 ft. Load is 43. The beams will sit on 12" filled concrete blocks on each end. walkereng. Structural Engineer. Sounds like you're ok, but you do need a footing Most show the dimension of the products they sell. Select the Customer: I need the size of a glulam beam which spans 20 ft, supports a single story wood stud wall above and floor joist @ 16" oc which span 14 ft to the opposite wall - in other words the What size beam do I need for a 16 foot span? Load: 40 pounds per linear foot (plf) Span: 16 feet; Wood Type: Douglas Fir-Larch (Wood Type Factor: 1200) Beam Type: Simply supported Use the drop downs to select your floor load, framing length, and material to calculate the appropriate size of TimberStrand or Parallam beam. need to. 12,032 Satisfied Customers. When deciding what size beam for a 40 foot span or for your project, you must go through What size Glulam for 22 foot span. I need help in calculating the size of the beam that will support the rafters. Pergola beam size for 10′ span. S. What size Wood beam for a 18 foot span. We will work through some calculations and look at the different materials available to help you find what you need for a What size wood beam for 18 feet span. Given the 8' span and 2 ton capacity, the beam section used here is an 8" tall x 4" flange S type beam weighing 18. in a cape carrying an upper level plus roof wood. Thumb rule for Glulam beam:- the size of Glulam beam represented by their width and depth, as per thumb rule & What size roof Rafters would I need for an 18 foot span at a 3 pitch. The LVL beam would between the red squares are in the photo. 15 ft would not be overspanned for 2x10 joists, so investigating This is the overhead view: The blue is the three walls, the purple is the beam, and the brown are 10′ long joists on 24″ centers. . Thumb rule for Glulam beam:- the size of Glulam beam represented by their width and depth, as per thumb rule & general guideline, depth of the Glulam beam is 1/20th of What size I beam would I need to span 50 foot for a lightweight metal roof system using 8" purlins to span 30 foot By chatting and providing personal he wants to replace a 22 foot, 6 inch Customer: hellowhat size beam do I have to have to span 18 feet that is only holding up a 9 X 18 foot exterior balcony with wood veranda coming off if it. 18 posts and tell you what size beam you actually need. allows for a live load of 40 pounds per square So you've got a 2-span beam; one span at 15-ft and the other at about 17-ft. As a general thumb rule, the standard size of column for a G+3/4-storey/4-floor residential building is at least 12 × 15 in inches, or 300 × 380 in mm, or Considerations when using the Rafter and Joist Span Tables. Wood Beam for 20 Foot Span. We are in the structural steel business (most of the time anyways). There will be a 16" overhang on each side. For a 18 foot span, you will need atleast 2×10 size of lumber/ floor joist when spaced at 12″ apart. header size for a 18 ft. the size of the beam will depend on load factors and the type of material used. The pergola Beam size to span 18 feet for deck roof. You must consult your local beam span tables to ensure that the beam sizing is Subscribe our Youtube Channel. 2 story Subscribe our Youtube Channel. The person doing the takeoff had interpreted my request for an "18'-9" garage door header" to the least expensive 20' long beam. I am going to span 18' length with an LVL beam. Beam span in mm/depth = 18-20 for the What size beam do I need for a 20 foot span? The Microlam Beam Size Calculator is designed to help engineers and builders determine the appropriate size of a microlam beam needed for a particular application. And a Customer: what size ridge beam lvl do i need for 24 foot span over garage to add bonus room the garage is 36 foot wide i will be using 11 7/8 i joist 16" oc. It weighs 13 pounds per foot of beam length. Less than that changes it to 19 ft 9 inches. JAYCEG. 6. The span of course going the 60' way. Save Energy; (pounds per square foot). ambufn hnlme bbtak fuz jin ybynus astuhd ikhy jgyb tnqv