Floor joist span chart

Table R502.3.1(1) shall be used to determine the maximum allowable span of floor joists that support sleeping areas and attics that are accessed by means of a fixed stairway in accordance with Section R311.7 provided that the design live load does not exceed 30 pounds per square foot (1.44 kPa) and the design dead load does not exceed 20 pounds …Find out the minimum size floor joists you need for building decks, sheds, or room additions for different types of wood on both 16” and 24” spacing. Expert Advice On Improving You...tj-9001 - Installation Guide for Floor and Roof Framing with TJI 110, 210, 230, 360 and 560 Joists; tj-9001F - Guide D’installation Pour Ossature De Plancher Et De Toiture; tj-9006 - Installation Guide for Deep Depth TJI 360, 560 and 560D Joists; csg-tjus22 - Simpson Connector Guide for Trus Joist Products (U.S.); 5036 - Mitek Connector Guide for Trus … Find the allowable joist and rafter spans for one- and two-family dwellings based on the International Building Code and International Residential Code. The span tables are based on the design values for visually graded and mechanically graded dimension lumber. Consult an engineer for unusual situations or nonstandard floor plans. Below is a table of minimum joist sizes for 16′′ and 24′′ on-center spacing using #2 lumber with 10 psf dead load and 40 psf live load. When in doubt, always use bigger lumber, closer spacing, or smaller spans.The maximum span for a 2 X 10 floor joist is up to 21 feet, depending on several factors. One must take into consideration the spacing of the joists and type of wood used. Addition...Choose the correct laminated veneer lumber span size by finding the correct span size for the LVL beams you are using and the spacing of the floor’s support columns on a LVL span s...User note: About this chapter: Chapter 8 addresses the design and construction of roof-ceiling systems. This chapter contains two roof-ceiling framing systems: wood framing and cold-formed steel framing. Allowable span tables are provided to simplify the selection of rafter and ceiling joist size for wood roof framing and cold-formed steel framing.to the span in inches divided by 360, and is based on live load only. The load duration factor, C D, is 1.0. Listed spans are for wet-service conditions, pressure-treated Southern Pine floor/deck joists, MC > 19%. Check sources of supply for available grades and sizes. Maximum spans were calculated using design values effective June 1, 2013.Max. dead load (weight of structure and fixed loads) 10 lbs/ft2 . Live load is weight of furniture, wind, snow and more. 1 psf (lbf/ft2) = 47.88 N/m2. 1 ft = 0.3048 m. 1 in = 25.4 mm. Max. Live Load 30 lbs/ft2(1436 N/m2) …J18 Uniform Load Span Chart: · Spans are based on uniformly loaded joists and include allowances for repetitive use members. · Live loads of 40 psf assumed. · ...Measuring Joist Span. Before you can apply the table, you need to know how the deck joist span is measured. Figure R507.6 “Typical Deck Joist Spans” includes four illustrations depicting the joist-span measurement points for two decks attached to a wall by a ledger—one with a flush rim beam and one with joists cantilevering over a …Permissible Clear Spans for Domestic Floor Joists (to BS 5268-7.1) Imposed load. 1.5 kN/m². Strength class. C16. Note: Our floor joist span tables are based on loadings given … El = value from table above For ®TJI® 110, 210, 230, and 360 Joists Δ = +22.5 wL 4 2 El 2.67 wL 4 d x 10 5 For TJI 560 Joists Δ = +22.5 wL 2 El 2.29 wL d x 10 General Notes Design reaction includes all loads on the joist. Design shear is computed at the inside face of supports and includes all loads on the span(s). 1.1 Span and joist spacing. This demo version is fixed at 1m clear span. The full version allows any size. Joist spacing. mm. This is the distance between joist centres. Usually 400, 450 or 600mm, but any value can be used up to 610mm max. R502.3.1 Sleeping areas and attic joists.. Table R502.3.1(1) shall be used to determine the maximum allowable span of floor joists that support sleeping areas and attics that are accessed by means of a fixed stairway in accordance with Section R311.7 provided that the design live load does not exceed 30 pounds per square foot (1.44 kPa) and the design dead load does not exceed 20 pounds per ... Featuring Trus Joist® TJI® Joists for Floor and Roof Applications. Timberlands. Timberlands. Trees are a remarkable resource that, when managed responsibly, can meet a wide range of fundamental needs for people and the planet for generations to come. ... SPECIFIER'S GUIDE FOR TJI 110, 210, 230, 360, AND 560 JOISTS - USA - tj-4000 . …Jan 18, 2024 · Use this tool to calculate the number and length of floor joists you need for any size of floor and joist spacing. You can also estimate the material cost, deflection limit, and maximum allowable span of your floor joist based on the wood species, lumber grade, and load per unit area. This application will specify a list of acceptable JJI-Joists once you enter your support conditions, load case and clear span. Once these have been entered, the joists suitable for this application appear in the table below. House Loading: 0.75kN/m2 Dead Load + 1.5kN/m2 Imposed Load. Flat Loading: 1.15kN/m2 Dead Load + 1.5kN/m2 Imposed Load.Joist Span Calculator. For help, simply click on the beside the section you need help with, Or watch this Tutorial Video. Beam Configuration. Joist Size 2x8. 2x10. 2x12. On Center Joist Spacing 12". 16". A general rule for sizing joist depth is to take half of the intended joist span in feet, add two, and then use that number in inches. For example, a 12-foot span would require a joist span of 8 inches: 12 ft. / 2 = 6. 6 + 2 = 8-inch joist span. Blocking the spaces between joists with smaller pieces of wood can reduce this stress and increase ... A general rule for sizing joist depth is to take half of the intended joist span in feet, add two, and then use that number in inches. For example, a 12-foot span would require a joist span of 8 inches: 12 ft. / 2 = 6. 6 + 2 = 8-inch joist span. Blocking the spaces between joists with smaller pieces of wood can reduce this stress and increase ...SPAN TABLES: FLOOR JOIST SPAN TABLES www.tecbeam.com.au. Limit State Capacities - Recommended maximum single spans (m). FLOOR LIVE LOADS. 1.5 kPa. HOUSES3. 2.0 ... A #2-2×10 joist can span between 11’-5” and 18’-0”, as a rafter between 13’-9” and 21’-7”, and as a beam 3’-6” and 13’-0” or more. The span depends on spacing, lumber species, and grade, and for a beam, the lamination thickness, as well as numerous other factors. In this guide, we’ll identify what span means, how far ... Featuring Trus Joist® TJI® Joists for Floor and Roof Applications. Timberlands. Timberlands. Trees are a remarkable resource that, when managed responsibly, can meet a wide range of fundamental needs for people and the planet for generations to come. ... SPECIFIER'S GUIDE FOR TJI 110, 210, 230, 360, AND 560 JOISTS - USA - tj-4000 . …Table 9.1 in Span Tables for Joists and Rafters (Figure #5) gives a required compression value of 237 psi for a span of 16 feet and bearing length of 1.5 inches. (the tables permit a bearing length of up to 3.5 inches, but since 1.5 is probably the worst case that you’ll encounter for joist or rafter bearing, it’s a safe value.) You can get ...... Span Tables (see below). . . . . . . . . . . . . . . . . 8-47. FLOOR JOISTS. FJ-1. 30#LL. 10#DL. L/360 . . . . . . . . . . . . . . . 8. FJ-2. 30#LL. 25#DL. L/ ...Span tables for timber floor joists. Surveyors and structural engineers use data from tables below to help calculate the size of timbers necessary to give adequate support to timber floors. These tables can help calculate whether floor joists are strong enough to support themselves and the load they carry, without the help of any walls underneath.J18 Uniform Load Span Chart: · Spans are based on uniformly loaded joists and include allowances for repetitive use members. · Live loads of 40 psf assumed. · ...Seasoned softwood floor joists are the most popular choice for house construction in Australia for a number of important reasons: Economical and readily available in lengths of up to 6 m. (For spans over 6 m, check with your supplier) Dressed or “reeded” finish for ease of handling. Seasoned to minimise movement of the installed timber.For other grades, loading conditions and on-center spacings, refer to Maximum Spans for Southern Pine Joists & Rafters published by the Southern Forest Products Association. Applied loads for each table are given in pounds per square foot (psf). Deflection is limited to the span in inches divided by 360, 240 or 180 and is based on live load only. Online and mobile-based calculators for determining joist and rafter spans, design connections, heights and areas, sound transmission, and energy efficiency compliance. Span Options Calculator for Wood Joists and Rafters. TR15 Acoustic Calculator. Connection Calculator. Energy UA Calculator. Heights and Areas Calculator. WoodWorks® Software ... TimberStrand® LSL Floor Joists. TimberStrand® LSL is an ideal solution, providing an alternative to solid sawn floor joists, especially where longer lengths and greater stability are required. Floors work harder these days, supporting heavy kitchen islands and great rooms. Rely on TimberStrand LSL joists to deliver the loads you require. TimberStrand® LSL Floor Joists. TimberStrand® LSL is an ideal solution, providing an alternative to solid sawn floor joists, especially where longer lengths and greater stability are required. Floors work harder these days, supporting heavy kitchen islands and great rooms. Rely on TimberStrand LSL joists to deliver the loads you require. The SkyCiv floor joist span calculator allows you to calculate the maximum span of timber joints. The calculations in this tool are based on the American Wood …222 Catoctin Circle SE, Suite 201 Leesburg, VA 20175 202-463-2766. [email protected] www.woodaware.info. AMERICAN WOOD COUNCIL. The purpose of this informational guide is to provide awareness to the fire service on the types of wood I-joists and how they are used in the construction of residential buildings.Ceiling Joist Spans for Common Species of Lumber. Joist span tables - use these tables to determine maximum spans based on the species and grade of lumber, the size of the ceiling joists (2x4, 2x6, etc.), and the spacing of the ceiling joists. The ceiling joist tables below cover the following two design scenarios:The short answer: deck joists are typically set at a distance of either 12 inches or 16 inches apart, on center. A slightly more in-depth look: the maximum joist spacing you can use for your frame will depend on a few factors:The size of your deck joists. The framing material.Click on a span to generate a full calculation (you can adjust the exact span). This span table is to the format and methodology given in BS 5268-7.1. These spans were calculated using our floor joist calculation engine. These span tables are the equivalent of other industry-standard span tables and are calculated to the same standards. Find out how far a 2 x 10 made from No. 2 pine or other material can span as a floor joist according to 2018 International Residential Code for living, bedroom, and storage areas. These six tables cover the most common situations for 16″ o.c. applications. Bedroom areas are sized for 30 lb live load plus 10 lb of dead load (20 lb for ceiling). Floor joist span is the distance that a structural member such as a joist can span, from one end to the opposite end. A variety of factors play into joist span, including but not limited to distance …The maximum distance a 2×6 can span, according to the 2018 IRC, for a floor joist, is 12’-6”, ceiling joist 20’-8”, rafter 18’-0”, deck board 24”, deck joist 9’-11”, deck beam 8’-3”, and 6’-1” as for header. Always check the codes for determining factors or consult a Structural Engineer. In this guide, we’ll discuss ...®LP SolidStart I-Joists shall be designed for dry-use conditions only. Dry-use applies to products installed in dry, covered and well ventilated interior ... w = uniform load (plf) K = shear stiffness (from table) L = design span (ft) Equations for other conditions can be found in engineering references. 422.5wL wL2 ElK PROFILE DETAILS 3/8 ...The sizing, span, and spacing of floor joists are crucial aspects of house framing. The most common spacing for wooden floor joists is 16". According to the 2021 International Residential Code, spacing variations such as 12", 19.2", and 24" are also acceptable. For a particular span, this spacing distance can vary based on the species of …SECTION 1: 9½"–16" TJI® Joists Design Properties 6 Floor Span and Load Tables 7–8 Tips for Preventing Floor Noise 8 Allowable Holes 9 Cantilevers 10–11 ... Framing details and design information for all joist depths in this guide This guide features TJI® joists in the following sizes:Discover palliative care options for children with heart disease across the lifespan. Learn from the AHA's science news about comprehensive care approaches. National Center 7272 Gr...Maximum Floor Joist Span Table Notes: 1. System loading is a uniform gravity ... Web crippling must be checked separately. WWW.BUYSUPERSTUD.COM. MAXIMUM FLOOR ...3 For two equal spans, the listed span is the distance from either end to the center support, with the joist continuous over the center support. 4 Joists must be braced againest rotation at all supports. 5 For two equal, continuous span conditions, alternate span live load has been considered.Attic without storage: Use Table R802.4 (1) Ceiling Joist Spacing: 12 inches. Species and Grade: Hem-fir #2. Lumber Size used: 2×8. Now lets find the maximum allowable span for a 2×8 member given the above scenario: Therefore given the above example, the maximum allowable span for a 2×8 member is 26′-0″. Maximum spans are inside to inside of bearings. Note: Deflection is limited to the span in inches divided by 360 for live load only. Maximum spans are inside to inside of bearings. Table 2. Floor Joists - 30 psf Live Load, 10 psf Dead Load, L/360 Deflection. Floor Joists - 30 psf Live Load, 10 psf Dead Load, L/360 Deflection. Aug 23, 2017 ... Based on a pre engineered metal web joist system by ITW Construction Products known as the SpaceJoist, the table shows the spans they can reach ...Allowable limiting heights & span Charts · Interior Framing · Interior Ceiling Framing · Exterior Framing · Floor Joist · Web Crippling &midd...updated October 27, 2023. Floor Joist Sizing, Span, Spacing: IRC Requirements. The sizing, span, and spacing of floor joists are crucial aspects of house framing. The most common … A #2-2×10 joist can span between 11’-5” and 18’-0”, as a rafter between 13’-9” and 21’-7”, and as a beam 3’-6” and 13’-0” or more. The span depends on spacing, lumber species, and grade, and for a beam, the lamination thickness, as well as numerous other factors. In this guide, we’ll identify what span means, how far ... Featuring Trus Joist® TJI® Joists for Floor and Roof Applications. Timberlands. Timberlands. Trees are a remarkable resource that, when managed responsibly, can meet a wide range of fundamental needs for people and the planet for generations to come. ... SPECIFIER'S GUIDE FOR TJI 110, 210, 230, 360, AND 560 JOISTS - USA - tj-4000 . …Deflection limits: L/240 total load, L/480 live load, unless noted otherwise. Roof loads of 30 PSF live load at 115% (snow load). Roof dead load of 12 PSF (asphalt shingles). Roof rafter slope between 8/12 and 12/12. Kneewall weight of 40 PLF. Attic storage load of 20 PSF live load (outside the kneewalls).When floor joists span continuously from wall to wall. (not cut at beam) this table requires that “B” be not less than 45%, or greater than 55% of “A”. Floor ... Learn how to design with floor joist span tables for different species, grades and spacings of wood joists. Use the joist span calculator to find the maximum span, dimensions and spacing of floor joists for your house design. See examples of floor joist span tables for Douglas fir, Hemlock, Spruce, Larch and other species. Watch this video to see how to frame up an addition for your home, from floor joists to walls to rafters. Expert Advice On Improving Your Home Videos Latest View All Guides Latest ...smallest adjacent span. However if either of the above conditions are not met, use the single span tables for the purpose of obtaining the appropriate size. Spacing Tables, such as those for rafters, floor joists and ceiling joists require the spacing of members to be known or selected in order to obtain the required size for a given span. SpacingFloor Joist Span—Residential Sleeping Areas. 2012 IRC Table R502.3.1(1) - Floor Joist Spans for Common Lumber Species. Residential Sleeping Areas, Live Load ...The Floor Joist Count calculator computes the number of joists (joists and end plates) required for a floor or deck based on the dimension of the room or deck and the on-center joist separation. Floor Joist Count Instructions (W) - Enter the width of the floor across the joists (L) - Enter the length of the floor parallel to the joists (oC) - Enter the On … Click on a span to generate a full calculation (you can adjust the exact span). This span table is to the format and methodology given in BS 5268-7.1. These spans were calculated using our floor joist calculation engine. These span tables are the equivalent of other industry-standard span tables and are calculated to the same standards. Find the maximum spans of floor joists based on the species, grade, size, and spacing of the joists. Use the span tables for common sizes and load scenarios, or use the span calculator for other scenarios. See diagrams, examples, and references for more information. See moreDeflection limits: L/240 total load, L/480 live load, unless noted otherwise. Roof loads of 30 PSF live load at 115% (snow load). Roof dead load of 12 PSF (asphalt shingles). Roof rafter slope between 8/12 and 12/12. Kneewall weight of 40 PLF. Attic storage load of 20 PSF live load (outside the kneewalls).Mar 08, 2022. By awc. LEESBURG, VA. – The American Wood Council (AWC) has released an update to the mobile apps and web-based Maximum Span Calculator for Wood Joists and Rafters to include the design values as found in the 2018 National Design National Design Specification® (NDS ® ) for Wood Construction Supplement. The mobile apps …Sample Floor Joist Span Table. The table excerpt above is simply a sample and may not be valid for your region. Looking at this table you will see there is a choice in the size of floor joist (2 X 6, 2 X 8, 2 X 10 or 2 X 12) and there is a choice in the joist spacing (12", 16" or 14"). The floor joist spacing is the distance between the centers ...Openings in floors shall be framed with header and trimmer joists. Header joist spans shall not exceed 6 feet (1829 mm) or 8 feet (2438 mm) in length in accordance with Figure …Dec 28, 2007 ... For other grades and species and for other loading conditions, refer to the AF&PA Span Tables for Joists and Rafters, ... FLOOR JOIST SPANS FOR ... Click on a span to generate a full calculation (you can adjust the exact span). This span table is to the format and methodology given in BS 5268-7.1. These spans were calculated using our floor joist calculation engine. These span tables are the equivalent of other industry-standard span tables and are calculated to the same standards. Oct 5, 2020 · Learn how to design wood joists and rafters with the latest span tables from the American Wood Council. Download the free PDF guide and get started today. Featuring Trus Joist® TJI® Joists for Floor and Roof Applications. Timberlands. Timberlands. Trees are a remarkable resource that, when managed responsibly, can meet a wide range of fundamental needs for people and the planet for generations to come. ... SPECIFIER'S GUIDE FOR TJI 110, 210, 230, 360, AND 560 JOISTS - USA - tj-4000 . …A 2x10's maximum span depends on where it's used. According to IRC 2021, a 2x10 with 16-inch spacing can span up to 18'-9" as floor joists, more than 26' as rafters and ceiling joists,4'-3" as beams, and 7' as headers without providing additional support. These values apply to Southern Pine Species. This article lists the maximum span of 2 x …Design Values for Joists and Rafters 2021 is a comprehensive guide for engineers and builders who work with wood framing systems. It provides updated design values for visually graded and mechanically graded dimension lumber, as well as adjustment factors for various conditions and loads. Download the free PDF from the American …Li Ka-shing, a wartime refugee who used to sweep factory floors in Hong Kong, retired after a career spanning more than 50 years. By clicking "TRY IT", I agree to receive newslette...smallest adjacent span. However if either of the above conditions are not met, use the single span tables for the purpose of obtaining the appropriate size. Spacing Tables, such as those for rafters, floor joists and ceiling joists require the spacing of members to be known or selected in order to obtain the required size for a given span. SpacingThe LP® SolidStart® I-joist product line was sold to Pacific Woodtech (PWT) in August of 2022 in connection with our sale of our Engineered Wood Products (EWP) business and SolidStart® brand. For customer support of LP® SolidStart® I-Joists purchased prior to 8/1/2022, contact LP at 1-888-820-0325.For LP® SolidStart® I-Joists purchased on and … Southern Pine is one of the most sustainable – and often long-term cost-effective – options. It is dependable for everything from building a deck to framing a five-story residential complex – and everything in between including flooring, marine construction, material handling, furniture, permanent wood foundations, post-frame construction ... While most residential construction uses 2x8 joists with 16 inch spacing, there are many other factors you need to consider when determining the proper joist span length. Joist span and spacing is set by your local building code. You should check with your local building department for construction requirements in your area.®LP SolidStart I-Joists shall be designed for dry-use conditions only. Dry-use applies to products installed in dry, covered and well ventilated interior ... w = uniform load (plf) K = shear stiffness (from table) L = design span (ft) Equations for other conditions can be found in engineering references. 422.5wL wL2 ElK PROFILE DETAILS 3/8 ...The allowable spans for BCI Series I-joists covered in this report shall be in accordance with the recommendations provided by the manufacturer (www.bc.com). For connection design, the specific gravity for the BCI flanges shall be limited to 0.43 for edge nail withdrawal, and 0.50 for face nail withdrawal, nail lateral, and bolt lateral. 4. R502.3.1 Sleeping areas and attic joists.. Table R502.3.1(1) shall be used to determine the maximum allowable span of floor joists that support sleeping areas and attics that are accessed by means of a fixed stairway in accordance with Section R311.7 provided that the design live load does not exceed 30 pounds per square foot (1.44 kPa) and the design dead load does not exceed 20 pounds per ... Span and Size Charts for BCI Joists | Boise Cascade. SPAN AND SIZE CHARTS FOR ENGINEERED WOOD PRODUCTS. Learn more about Engineered Wood Products by …Table R502.3.1(1) shall be used to determine the maximum allowable span of floor joists that support sleeping areas and attics that are accessed by means of a fixed stairway in accordance with Section R311.7 provided that the design live load does not exceed 30 pounds per square foot (1.44 kPa) and the design dead load does not exceed 20 pounds …Table R502.3.1(1) shall be used to determine the maximum allowable span of floor joists that support sleeping areas and attics that are accessed by means of a fixed stairway in accordance with Section R311.7 provided that the design live load does not exceed 30 pounds per square foot (1.44 kPa) and the design dead load does not exceed 20 pounds …Span Calculator. Posi-Joist: Interactive Span Table: Try our interactive span checker to find the posi joist suitable for your project. Simply enter the required span to see a range of results that will work. You will be given a range of depths and centres that are available and also an indicative deflection result.Table R502.3.1(1) shall be used to determine the maximum allowable span of floor joists that support sleeping areas and attics that are accessed by means of a fixed stairway in accordance with Section R311.7 provided that the design live load does not exceed 30 pounds per square foot (1.44 kPa) and the design dead load does not exceed 20 pounds …9.23.4.2. Spans for joists, Rafters and Beams. (1) Except as required in Sentence (2) and Article 9.23.13.10., the spans for wood joists and rafters shall conform to the spans shown in Tables A-1 to A-7 for the uniform live loads shown in the Tables. (2) Spans for floor joists that are not selected from Tables A-1 and A-2 and that are required ...The following tables are meant to assist in the appropriate selection of RigidLam LVL used as floor joists. Alternatively, appropriate software ... such as Simpson Strong Tie® Component Solutions™ may be used to size RigidLam LVL floor joists. RigidLam® LVL Floor Span Tables Riddle OR 1-1/2” 1.3E RigidLam LVL Floor Spans - 40 psf Live ...The spans are based on simple-span joists. The minimum bearing length is 1 ½”, spans values in bold indicate that web stiffeners are required at the OSB end panel. The maximum span is measured o.c. of bearings and is based on uniformly loaded joists. Dead load deflection is limited to L/360 and total load deflection is limited to L/240.Linear interpolation shall be permitted for building widths and ground snow loads other than shown. TABLE R502.3.3(2). CANTILEVER SPANS FOR FLOOR JOISTS ...Maximum Spans for Joists, Rafters and Beams Chart. The distance a joist, rafter, or beam can span depends on the wood species, grade of lumber, loads, and how they are used. Quite often, the distance a beam can span is also determined by the spacing of joists or rafters it will support, and vice versa. Additionally, the span of joists and ...A joist span calculator is a tool that helps determine the appropriate spacing between joists for a given load and joist size, ensuring the structural integrity of a floor or deck. By inputting data such as joist size, joist spacing, and span length, the calculator provides accurate recommendations for safe and efficient construction.For content printing within Digital Codes Premium, please utilize the section level printing controls available within the Premium toolbar for each section. ICC Digital Codes is the largest provider of model codes, custom codes and standards used worldwide to construct safe, sustainable, affordable and resilient structures.Technical Diagrams – Internal Floor Joists. / Deck Joists / Deck Bearers. 35. Page 3. 3 www.woodhouse.com.au. Woodhouse Weatherproof®. Specifications. The ...The program helps the user identify which of Boise Cascade's engineered wood products meet the demands of the application. BCI® Joists are specially constructed I-joists with flanges made from strong VERSA-LAM® LVL (Laminated Veneer Lumber) with oriented stranded board webs and approved waterproof structural adhesives, providing …smallest adjacent span. However if either of the above conditions are not met, use the single span tables for the purpose of obtaining the appropriate size. Spacing Tables, such as those for rafters, floor joists and ceiling joists require the spacing of members to be known or selected in order to obtain the required size for a given span. SpacingSpan Calculator. Posi-Joist: Interactive Span Table: Try our interactive span checker to find the posi joist suitable for your project. Simply enter the required span to see a range of results that will work. You will be given a range of depths and centres that are available and also an indicative deflection result. Floor Span Tables: 40 psf Live Load and 10 psf Dead Load TO USE: 1. Select the Simple Span or Continuous Span table, as required. 2. Find a span that meets or exceeds the required clear span. 3. Read the corresponding joist series, depth and spacing. CAUTION: For floor systems that require both simple span and continuous span joists, Maximum Floor Joist Span. The maximum span of floor joists depends on the type and grade of lumber used. Higher grades of lumber will be able to span longer distances than lower grades. Generally, you can expect a 2×10 floor joist to span up to 16 feet and a 2×12 up to 24 feet. Floor Joist Span Calculator Maximum spans are inside to inside of bearings. Note: Deflection is limited to the span in inches divided by 360 for live load only. Maximum spans are inside to inside of bearings. Table 2. Floor Joists - 30 psf Live Load, 10 psf Dead Load, L/360 Deflection. Floor Joists - 30 psf Live Load, 10 psf Dead Load, L/360 Deflection. This ceiling joist span table is based on the 2012 IRC for uninhabitable attics with limited storage. It covers #2 common lumber species and sizes at 20 pounds per square foot load. Although 2 x 4’s are included in the official table, they are not listed because it is never advised to use them. 2 x 12’s are not listed because you can span pretty much whatever …Southern Forest Products Association Span Tables. Span tables for visual and mechanical grades of southern pine lumber joists and rafters, and southern pine lumber and glue-laminated timber (glulam) headers, beams and girders. …to the span in inches divided by 360, and is based on live load only. The load duration factor, C D, is 1.0. Listed spans are for wet-service conditions, pressure-treated Southern Pine floor/deck joists, MC > 19%. Check sources of supply for available grades and sizes. Maximum spans were calculated using design values effective June 1, 2013.SPFA has created 46 simplified maximum span tables based on common load conditions for floor joists, ceiling joists, and rafters for selected visual and mechanical grades of … | Ceinlmqtdh (article) | Mbbcq.