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TRUSS CHORD INFORMATION
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<br /> Weyerhaeuser MEL and MSR Truss Chord Trus Joists 2.0E Microllam® L Vl.Truss CITDtd
<br /> Machine Evaluated Lumber(MEL) The 2,0E Microllam®LYL Truss Chord its available in the following sizes?
<br /> M12:2x4,2x6,2x8,2x10,and 2x12 nominal sizes;lengths from 8'to 20' VIMI
<br /> 6123:2x8,2x10,and 2x12 nominal sizes;lengths from 8'to 20'
<br /> Machine Stress Rated(MSR)Lumber*
<br /> 0e I :al ;5'�° P/,°,9!e",91",11%",11%a",and 14"
<br /> 1650f,1800f,and 2100f:2x4 and 2x6 nominal sizes;lengths from 8'to 20' Lengths:10"to 60'in 1'foot increments
<br /> 2400f:2x4,2x6,2x8,2x10,and 2xI2 nominal sizes;lengths from 8'to 20' k
<br /> *2.0E Microllam LVL truss chords are available only in select markets.Contactyour
<br /> *Other MSR lumber products may be available in your area.Check with your Weyerhaeuser \ local Weyerhaeuser representative for information.
<br /> representative.
<br /> Grade Options and Product Benefits Application Examples
<br /> Weyerhaeuser's line of truss products includes several,grades of performance tested Example 1:
<br /> MEL and MSR lumber,plus a unique grade of%erotism®LYL produced specifically for Ali M-12,1650f,1800f,
<br /> plated-truss applications. or 2400f
<br /> ■M-12 is our newest performance tested MEL product.Made from Southern Pine,it's
<br /> designed to meet the requirements of most truss applications.
<br /> • 1650f and 2100f MSR SPF lumber and 1800f and 24001 MSR DFLN lumber come in Example 2:
<br /> 2x4 and 2x6 depths,making them versatile,multi-purpose truss chord,products. M12,,1650f,or 2400f webs
<br /> The 1650f SP product is available in 2x4 depth only: and top chords;2100f;2400f,
<br /> or M-23 bottom chord v v
<br /> • M-23 MEL SP lumber provides more strength than M-12 and is available in deeper
<br /> nominal sizes.It performs well in high-load applications,and when limited
<br /> deflection is critical or a reduced cross section is desired.
<br /> • de00fepe lumber ize strongest
<br /> performs
<br /> Southern high-load
<br /> product applic and is,available in ExamplellM-1 3:50f,
<br /> deeper nominal sizes.ltperformswell mhigh load applications,and when limited All M-12,1fi50f,
<br /> deflection is critical or a reduced cross section is desired. 1800f,or 2400f
<br /> • 2.0E Microllam®LW. Grade is our premium chord product,designed for plate-
<br /> connected truss applications that require high-stress members-such as bottom Example 4:
<br /> chords in girder trusses,bonus room trusses,or top chords in tail-bearing trusses. M12,1650f,1800f,or 2400f
<br /> MEL and MSR benefits: webs and top chords;1800f,
<br /> 2100f,M-23,2400f,or
<br /> ■ Both MEL and MSR lumber grades contain less wane than industry standards, Microllam®LVL .
<br /> providing a superior plating surface and an appealing appearance while also bottom chord
<br /> reducing material waste.
<br /> • The consistent strength of MEL and MSR lumber—something you can't count on
<br /> with visually graded lumber—means trusses will deflect similarly under load,
<br /> resulting in smoother ceilings and ridgelines.
<br /> 2.0E Microllam®WI.manufacturing benefits: Example 5:Bonus Room
<br /> M-12,1650f,1800f,
<br /> • Fewer plies are required in most girder assemblies. or 2400f webs and top
<br /> ■ Chords resists shrinking and splitting. chords;M23,®400f, -
<br /> or Microllam®LVL
<br /> •Standard depths(up to 14°)match depths of adjoining floor systems;longer bottom chord
<br /> lengths(up to 60')reduce the need for chord splicing.
<br /> Note:To ensure appropriate specification and design,Microllam®LVL can be used
<br /> only by authorized truss manufacturers who use truss design software by the
<br /> following companies:ITW Building Components(Alpine Engineered Products and
<br /> Truswal Systems)and MiTek Industries,Inc. :10,yerimousorliaasiMaluinteratilZOEMisioitanellt
<br /> ire im'esrlird'faruseapplicauen&
<br /> Code Evaluations:See ICC-ES ESR-1387
<br /> Weyerhaeuser Truss Chord Specifiers Guide 9008 I June 2019 I
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