6. Ledger shall be a minimum of 2x8 nominal. Where guards are required, outside joists and rim joists shall be a minimum length of 2x8 nominal. 7. Joist length prescriptively limited to 18'-0” for footing design. Table 1. Maximum Joist Spans and Overhangs1. Courtesy of American Wood Council - Leesburg, VA. Joist Span (L.
Plan Review (Structural, Electrical, Zoning). • Inspections. Framing is required if applicable (decks < 4 feet in height). Prior to designing your deck, read this publica- tion thoroughly and pay close attention to each applicable detail. Once you have selected the size of your deck, use the joist and beam span tables to determine.
Prescriptive Residential Wood Deck Construction Guide. Effective June 1, 2013, design values for all gradeg and sizes of visually-graded Southern Pine and Mixed Southern. Pine lumber, 2"- 4" thick will change. New tables and other criteria to use with DCA &09 are shown below (spans and other criteria that will change on.
Design tables are provided for lumber which is not incised (Tables 2a, 2b, 4a, 4b, 6a and 6b) and lumber which is incised (Tables 3a, 3b, 5a, 5b, 7a and 7b). Tables are provided in both metric and imperial units. RESIDENTIAL PRESCRIPTIVE EXTERIOR WOOD DECK SPAN GUIDE. CANADIAN WOOD COUNCIL.
While prescriptive design tables (i.e., span tables) and similar design aids . prescriptive guidelines for design and construction may be found in the Wood .. exterior decks. It is important to specify the correct level of treatment (0.4 pcf retention for nonground-contact exterior exposure and 0.6 pcf for ground contact).
PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE. American Wood Council. Table 3A. Dimension Lumber Deck Beam Spans (LB)1 for Joists Framing from One Side Only. Joist Spans (L) Less Than or Equal to: Species. Size4. 6'. 8'. 10'. 12'. 14'. 16'. 18'. Southern Pine. 2-2x6. 6' - 8". 5' - 8". 5' - 1".
bridge designs contained in this design guide are offered as an alternative to other types of stream crossing such as . The design of the wooden deck follows the procedures of the Timber Bridges;. Design, Construction .. The beam selection tables are based on the clear span of the beam for the different options shown.
May 1, 2008 . The IRC contains span tables that are often used for sizing deck joists, but these tables include only a few wood species, and they don't account for wet-service conditions or incised materials, both of which may slightly reduce the materials' structural capacity. The Deck Construction Guide provides a simple.
implied warranty with respect to the suitability, design or performance of lumber for a particular project .. composite lumber. The Prescriptive Residential Wood. Deck Construction Guide recommends a minimum 6x6. (nominal) post size for residential decks. . Refer to Table 4 for Southern Pine deck beam spans (LB) .
Spans. Wood framing is the material of choice for residential construction and continues to increase its market share in non-residential construction. Wood frame construction relies on the lumber design values and allowable span tables published in building codes and standards, and industry technical publications. Design.
Deck beam span table Deck joist span table Deck joist rule of thumb Deck & Porch Construction & Structural Fasteners Deck & Porch Post & Beam . Deck Construction: Joist, Beam, & Floor Framing Spans & Tables. FRAMING .. Details about the evolution of lumber standards are at FRAMING SIZE & Spacing, Age, Types.
joist and beam span tables to determine their size, spacing, span lengths and overhang dimensions. Use the remaining details to guide you in determining the other design elements of your deck. Ensure you record you deck design on Page 24. DESIGN CONSIDERATIONS. 1. These details are based on the prescriptive.
#21 • Domestic Timber Deck Design. Page 10. 1.5.1 Span Capacity. Various timber decking boards have different span capacity. Table 2 gives maximum span of the common decking board timber types and thicknesses. Decking. Stress grade. Thickness (mm). Maximum joist spacing (mm). Hardwood. Medium Feature.
PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE. 5. American Forest & Paper Association. BEAM SIZE & ASSEMBLY REQUIREMENTS. Deck beam spans shall be in accordance with Table 3 and can extend past the post centerline up to LB/4 as shown in Figure 3. Joists may bear on the beam and.
Jun 13, 2014 . My favorite guide for designing and building decks – the American Wood Council's DCA 6 – has been updated to dovetail with the 2012 International Residential Code (IRC). Whether you're a construction professional or a DIY, DCA 6 will guide you through all aspects of deck construction with.
Mar 20, 2013 . Another option for determining spans is to use the span charts in the American Wood Council's DCA6-09, Prescriptive Residential Wood Deck Construction Guide (free at awc.org/publications). Keep in mind that joist spacing may be dictated by the type of decking boards to be installed and how they are to.
wood members. Remember, any time you make a cut, treat the cut end of the wood with a paint-on preservative. Cut ends expose the inner untreated wood to .. 6 • DECK DESIGN GUIDE. TABLE 1. If you have a beam “B” that is: and you have posts “C” supporting the beam spaced: then you can only span the joists: and the.
The authors wish to acknowledge the valued assistance of the organizations listed on page 5 of the report. Particular thanks are expressed to the technical staffs of the American. Plywood Association and the Western Wood Products Asso- ciation who helped develop Tables 2 through 6 and who reviewed the report in draft.
Residential Wood Deck Construction Guide published by American Forest & Paper Association, Inc. Where applicable, provisions . OOOO beam*XXI–joist hanger joist hanger. IONIC. *Note: beam depth must be equal to or greater than joist depth if joist hangers are used ledger board - post = Joist Span (LJ): see Table 2.
important because certain products like Radius Edge Decking have limited span capabilities as shown in the span table. The deck must be constructed of either a naturally decay-re- sistant lumber or a pressure-treated lumber (ACQ) and be designed to support a live load of 40 pounds per square foot. All overhead power.