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For more information on other applications or other Weyerhaeuser products, contact your Weyerhaeuser representative.  \nACHIEVE PREMIUM PERFORMANCE WHILE USING LESS WOOD  \nUsing the superior strength and dimensional properties of Premium™ Joists, you can build more efficiently throughout the construction process. The high strength values of Premium™ Joists mean you can use less wood and simplify your installations while consistently delivering a higher level of performance.  \nPremium Roof and Floor Performance  \nExceptional dimensional stability helps floors meet the stringent flatness criteria for hardwood and tile installations. This same product stability also helps framers deliver crisp roof lines and ripple-free ceilings.  \nAdvanced performance testing ensures optimum fiber strength and product density, helping floors feel solid without many of the annoying vibrations and soft spots found in floors built with standard commodity grades.  \nPremium™ Joist Installation Benefits  \n• Kiln drying to a low, consistent moisture content—KD15, with no wet spots—decreases joist-to-joist variability, so you'll spend less time shimming and sanding.  \n•Superior dimensional stability also means less culling and improved build times.  \n• Improved efficiency with less wood—use fewer joists while still providing premium floor and roof performance.  \n•Stringent wane specifications reduce gluing and nailing issues along edges.  \nAvailable Sizes  \nWeyerhaeuser Premium™ Joists are available in the following sizes:  \n\n| Nominal Size | Lengths |\n| --- | --- |\n| 2x6, 2x8, 2x10, 2x12 | 8' to 20' in 2' increments |\n|  |  |\n\nSpan Comparisons  \nBased on 40 psf live load, 10 psf dead load, and deflection of L/360  \nFLOOR JO IST SPAN  \n22  \n20  \n18  \n16  \n14  \n12  \n10  \n\n|  |  |  |\n| --- | --- | --- |\n|  |  |  |\n|  |  |  |\n|  |  |  |\n|  |  |  |\n| | \u003Cbr>2x10 | \u003Cbr>2x12 |\n\nHF \\#2  \n16\"  \nO. C.  \nSPF \\#2 PREM 16\" JOIST O. C. 19.2\"  \nO. C.  \nPREM JOIST 16\"  \nO. C.  \nHF \\#2  \n16\"  \nO. C.  \nSPF \\#2 PREM 16\" JOIST O. C. 19.2\"  \nO. C.  \nPREM JOIST 16\"  \nO. C.  \nHF \\#2  \n16\"  \nO. C.  \nSPF \\#2 PREM 16\" JOIST O. C. 19.2\"  \nO. C.  \nPREM JOIST 16\"  \nO. C.  \nWeyerhaeuser Premium™ Joist Specifier’s Guide LB-4010 | October 2018  \nSPAN AND LOAD TABLES  \nSP, M-29 Premium™ Joist Maximum Floor Spans  \n\n| Nominal\u003Cbr>Size | Width | Depth | 40 psf Live Load, 10 psf Dead Load, L/360(1) |  |  |  | 40 psf Live Load, 10 psf Dead Load, L/480 |  |  |  | 30 psf Live Load(2), 10 psf Dead Load, L/360(1) |  |  |  | 30 psf Live Load(2), 10 psf Dead Load, L/480 |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n|  |  |  | 12\" o. c. | 16\" o. c. | 19. 2\" o. c. | 24\" o. c. | 12\" o. c. | 16\" o. c. | 19. 2\" o. c. | 24\" o. c. | 12\" o. c. | 16\" o. c. | 19. 2\" o. c. | 24\" o. c. | 12\" o. c. | 16\" o. c. | 19. 2\" o. c. | 24\" o. c. |\n| 2x8 | 1½\" | 7¼\" | 14'-5\" | 13'-1\" | 12'-4\" | 11'-5\" | 13'-1\" | 11'-11\" | 11'-2\" | 10'-5\" | 15'-10\" | 14'-5\" | 13'-7\" | 12'-7\" | 14'-5\" | 13'-1\" | 12'-4\" | 11'-5\" |\n| 2x10 | 1½\" | 9¼\" | 18'-5\" | 16'-9\" | 15'-9\" | 14'-7\" | 16'-9\" | 15'-2\" | 14'-4\" | 13'-3\" | 20'-3\" | 18'-5\" | 17'-4\" | 16'-1\" | 18'-5\" | 16'-9\" | 15'-9\" | 14'-7\" |\n| 2x12 | 1½\" | 11¼\" | 22'-5\" | 20'-4\" | 19'-2\" | 17'-9\" | 20'-4\" | 18'-6\" | 17'-5\" | 16'-2\" | 24'-8\" | 22'-5\" | 21'-1\" | 19'-7\" | 22'-5\" | ","cbCaij1hvrjsdxoy","https://ap.wps.com/l/cbCaij1hvrjsdxoy","pdf",792887,"English","# Why Use Weyerhaeuser Premium™ Joists?\n# Achieve Premium Performance While Using Less Wood\n# Premium Roof and Floor Performance\n# Premium™ Joist Installation Benefits\n# Available Sizes\n# Span Comparisons\n# Span and Load Tables\n## Premium™ Joist Maximum Floor Spans\n## Premium™ Joist Maximum Rafter Spans\n## Premium™ Joist Maximum Ceiling Spans\n## Premium™ Joist Beam or Header Allowable Loads","[{\"question\":\"What benefits do Premium™ Joists provide for flooring and roofing performance?\",\"answer\":\"They offer exceptional dimensional stability to support floor flatness criteria and crisp roof lines with ripple-free ceilings. Advanced testing helps achieve strong fiber performance and consistent density for a solid feel with fewer soft spots and vibrations.\"},{\"question\":\"How does KD15 kiln drying affect installation and jobsite variability?\",\"answer\":\"Kiln drying to a low, consistent moisture content (KD15) reduces joist-to-joist variability. This decreases time spent shimming and sanding during installation.\"},{\"question\":\"What span information does the guide include for different structural members?\",\"answer\":\"It provides maximum floor spans, rafter spans, ceiling spans, and beam or header allowable loads (PLF), each based on specific live/dead load assumptions and deflection criteria.\"}]","Weyerhaeuser Premium™ Joist Specifier’s Guide - Specifier’s Guide LB-4010 - October 2018 | PDF",1791869639]