INSTALLATION GUIDE FOR FLOOR AND
TJI 110TJI 210TJI 230TJI 360TJI 560JoistsINSTALLATION GUIDEFOR FLOOR ANDROOF FRAMINGMay2013 ReorderTJ-9001September2011ReorderTJ-9001 WARNING:DO NOT walkon joists untilbraced. INJURYMAY RESULT.DO NOT stackbuilding materialson unsheathedjoists. Stack onlyover beamsor walls.WARNING:DO NOT walkon joists thatare lying flat.IMPORTANT: PLEASE READ CAREFULLY!WARNING: JOISTS ARE UNSTABLE UNTILBRACED LATERALLYBracing Includes: Blocking, Hangers, Rim Board, Sheathing, Rim Joist,Strut LinesLack of proper bracing during construction can result in serious accidents.Observe the following guidelines:1. Properly install all blocking, hangers, rim boards, and rim joists at TJI joistend supports.2. Establish a permanent deck (sheathing), fastened to the first 4 feet of joists atthe end of the bay or braced end wall.3. Safety bracing of 1x4 (minimum) must be nailed to a braced end wall orsheathed area and to each joist.4. Sheathing must be completely attached to each TJI joist before additional loadscan be placed on the system.5. Ends of cantilevers require safety bracing on both the top and bottom flanges.6. The flanges must remain straight within 1 2" from true alignment.woodbywy.com 1.888.453.8358WARNING:La Sécurité Avant ToutAVERTISSEMENTLire Attentivement L es solives non contreventées latéralement sont instables. Voir leguide d’installation avant la pose des solives TJI . Ne pas circuler sur les solives TJI avant qu’elles ne soient adéquatement contreventées. Risque de blessure. Ne pas empilées des matériaux sur des solives avant d’avoir installéles sous-plancher. Les entreposer temporairement au-dessus despoutres et murs.La Seguridad Ante TodoADVERTENCIAPor Favor Lea Cuidadosamente L as viguetas son inestables hasta que sean reforzadas lateralmente.Vea la guía de instalaciones antes de instalar las viguetas TJI . No camine sobre las viguetas hasta que sean apuntaladas. No ponga materiales de construcción sobre las viguetas TJI antes deinstalar el triplay. Ponga materials únicamente sobre vigas o muros.This guide is intended for the productsshown in dry-use conditions.
1CONTENTSFloorRoof and WallBeam and ColumnAllowable Holes:Trus Joist TJI Joists. . . . . . . . . . . . . . 1Allowable Holes:Trus Joist TimberStrand LSLWall Studs. . . . . . . . . . . . . . . . . . . . . . 2Allowable Holes:Trus Joist TimberStrand LSL,Parallam PSL, Microllam LVLHeaders and Beams. . . . . . . . . . . . . . . 2TJI Joist NailingRequirements at Bearing . . . . . . . . . . . 2Web Stiffeners. . . . . . . . . . . . . . . . . . . 6Installation Recommendations . . . . . . . 2Typical Roof and Wall Framing. . . . . . . 6TJI Joist Floor Framing. . . . . . . . . . . . 3Ceiling Joists. . . . . . . . . . . . . . . . . . . . 6Fastening of Floor Panels. . . . . . . . . . . 3Roof Details. . . . . . . . . . . . . . . . . . . . . 7Rim Board Details and Installation. . . . 4Framing Connectors. . . . . . . . . . . . . . . 8Floor Details . . . . . . . . . . . . . . . . . . 4–5Shear Blocking and Ventilation Holes. . 8Cantilever Details . . . . . . . . . . . . . . . . 5TJI Joist NailingRequirements at Bearing . . . . . . . . . . . 8Filler and Backer Blocks . . . . . . . . . . . 5Beam and Column Details . . . . . . . . . . 9Beam and Header Bearings . . . . . . . . . 9 BUILD SAFELYWe at Weyerhaeuser are committed to working safely and wantto remind you to do the same. We encourage you to follow therecommendations of OSHA (www.osha.gov) in the U.S. or provincialregulations (www.canoshweb.org/en/) in Canada regarding:– Personal protective equipment (PPE) for hands, feet, head,and eyes– Fall protection– Use of pneumatic nailers and other hand tools– Forklift safetyPlease adhere to the Weyerhaeuser product installation details,including the i nstallation of safety bracing on unsheathed floorsand roofs.Web Stiffeners. . . . . . . . . . . . . . . . . . . 6Framing Connectors. . . . . . . . . . . . . . . 8PRODUCT IDENTIFICATION21 16"13 4"11 4"–13 8"11 4"–13 8"3 8"9½"117 8"14"3 8"TJI 110 joists9½"117 8"14"16"TJI 210 joists25 16"11 4"–13 8"31 2"25 16"13 8"9½"117 8"14"16"3 8"13 8"9½"117 8"14"16"3 8"TJI 360 joistsTJI 230 joists9½"117 8"14"16"7 16"TJI 560 joistsALLOWABLE HOLES—TJI JOISTSMin. distance from Table BMin. distance from Table ADO NOT cut holesin cantilever reinforcement.6"6"DO NOT cut ornotch flange.L12 x D1 D1minimumNo field(applies to allcut holesholes exceptin hatchedknockouts)zoneORClosely grouped roundholes are permitted ifthe group perimetermeets requirements forround or square holes1½" holemay be cut anywhere inweb outside ofhatched zone6"L22 x L2minimumD26"No fieldcut holesin hatchedzone6"Do not cutholes largerthan 11/2" incantilever
Table A—End SupportMinimum distance from edge of hole to inside face of nearest end supportRound Hole SizeJoistTJI Depth87 8"11"2"3"4"61 2"1101'-0"1'-6"2'-0"5'-0"2101'-0"1'-6"2'-6"5'-6"91 6'-6"117 2'-0"Square or Rectangular Hole Size4"61 2"87 6"10'-0" 11'-0"Minimum distance from edge of hole to inside face of nearest intermediate or cantilever supportRound Hole SizeJoistTJI Depth87 8"11"13"2"2"3"4"61 -0"2'-0"91 -0"2301'-0"2'-0"2'-6"5'-0"10'-0"1'-0"117 '-0"16"3601'-0"1'-0"1'-0"3'-0"6'-6"10'-0" 13'-6"1'-0"5601'-0"1'-0"1'-0"2'-6"7'-0"11'-0" -0"1'-0"Square or Rectangular Hole Size4"61 2"87 6"5'-0"9'-6"11'-0"6'-0"10'-6" 12'-0"1'-0"5'-0"9'-0"12'-0"2'-0"6'-0"10'-0" 13'-0"2'-6"6'-6"11'-0" 13'-6"4'-0"9'-0"12'-0" 14'-0"5'-0"10'-0" 13'-6" 15'-0"1'-0"4'-6"10'-0" 12'-6"1'-0"5'-0"10'-6" 13'-6"2'-0"7'-6"13'-0" 14'-6"3'-6"9'-0"14'-6" "12'-0"Table B—Intermediate or Cantilever Support 13"16'-0"16'-6"17'-0"18'-0"Leave 1 8" of web (minimum) at top and bottom of hole. DO NOT cut joist flanges.Tables are based on uniform load tables in current design literature. For simple span (5' minimum), uniformly loaded joists used in residential applications, one maximum size round hole may belocated at the center of the joist span provided that no other holes occur in the joist.
2ALLOWABLE HOLES—BEAMS and STUDS1.55E TimberStrand LSL Headers and Beams2 x diameter of the largest hole (minimum)1 3Allowed hole zonedepth1.55E TimberStrand LSL8"8"GENERAL NOTES Allowed hole zone suitable for headers andbeams with uniform and/or concentratedloads anywhere along the member. Header orBeamDepthMaximumRound HoleSize91 4"–91 2"111 4"–117 8"14"–16"3"35 8"45 8"See illustration forallowed hole zone. Round holes only. No holes in headers or beams in plankorientation.DO NOT cut, notch, ordrill holes in headersor beams exceptas indicated in the illustrations and tables.Other Trus Joist Headers and Beams1.3ETimberStrand LSLhole zoneMicrollam LVL andParallam PSL holezone2 x diameter ofthe largest hole(minimum)1 3depthOther Trus Joist BeamsdMicrollam LVL andParallam PSLallowed hole zonemiddle 1 3 spand1.3E TimberStrand LSL allowed hole zoneGENERAL NOTES Allowed hole zone suitable for headersand beams with uniform loads only. No holes in cantilevers. dHeader orBeamDepthMaximumRound HoleSize43 8"51 2"71 4"–20"1"13 4"2" See illustration for allowed hole zone.Round holes only. No holes in headers or beams in plankorientation.TimberStrand LSL Wall StudsOne notch may be cut anywhere except the middle 1 3 of the length of the stud or column.Holes may be drilled anywhere along the length of the stud or column but must be at least 5 8" from the edge.5 8"minimum edge distanceMaximum diameter:forthick walls (11 8" in Canada);23 16" for 51 2"–117 8" thick walls(113 16" in Canada)13 8"31 2"Maximum notch:7 8" for 31 2" thick walls13 8" for 51 2"–117 8"thick wallsDO NOT cut a notchand a hole in thesame cross section.
TJI JOIST NAILING REQUIREMENTS AT BEARINGSquash Blocks to TJI JoistTJI Joist to Bearing Plate11 8"TJ Rim Board or11 4"TimberStrand (Load bearing wall above)LSLOne 8d (0.113" x 21 2") nail eachside. Drive nails at an angleat least 11 2" from end.13 4" minimum end bearing forsingle-family applications One 10d (0.128" x 3")nail into each flange31 2" minimum intermediatebearing; 51 4" may be requiredfor maximum capacityIncreased bearing capacities may be achieved with increased bearinglengths. See plans for required bearing lengths.Shear transfer nailing: Use connections equivalent to floor panel nailingschedule. See page 4.Also see detail B2, page 5Rim to TJI Joist13 4" minimumbearing11 8" TJ Rim Board, 11 4" TimberStrand LSL,or TJI 110 rim joist:One 10d (0.131" x 3") nail into each flangeTJI 210, 230, and 360 rim joist:One 16d (0.135" x 31 2") nail into each flangeTJI 560 floor joistTJI 560 rim joist:Toenail with 10d (0.128" x 3")nails, one each side ofTJI joist flangeLocate rim board joint between joistsTop ViewTJI 560 rim joistINSTALLATION RECOMMENDATIONSRECOMMENDED COMPONENTS Weyerhaeuser Edge Gold floor panelsTJI joists11 8" TJ Rim Board or 11 4" TimberStrand LSLRECOMMENDED ADHESIVES Weyerhaeuser recommends using solvent-based subfloor adhesives that meet ASTM D3498 (AFG-01) performance standards.When latex subfloor adhesive is required, careful selection isnecessary due to a wide range of performance between brands.Apply a 1 4" or largerbead of adhesiveNail panel to joist at 12" on-center in field and 6" on-center alongpanel edges. Apply fasteners 3 8" from panel edges. For 3 4" panels, use 8d (0.131" x 21 2") or 6d (0.120" x 2")deformed-shank nails or other code-approved fasteners. For 7 8" panels, use 8d (0.131" x 21 2") or 8d (0.120" x 21 2")deformed-shank nails or other code-approved fasteners. Fully nail floor panel within 10 minutes of applying adhesive (orsooner if required by adhesive manufacturer). Screws may be substituted for the nails noted above if the screwshave equivalent lateral load capacity. DERDO ENP ISN THW GEO AD RAINDERDO ENP ISN THW GEO AD RAIN DERDO NP IS EN THW GEO AD RAINDPNTW GEO AD RAIN DERDO NP IS EN THW GEO AD RAIN At abutting panel edges,apply two 1 4" beads of adhesive
3TJI JOIST FLOOR FRAMINGTJI joist floor framing does not requirebridging or mid-span blockingSee Filler andBacker Blockson page 5DO NOT use sawn lumber forrim board or blocking as itmay shrink after installation.Use only engineered lumber.WARNINGJoists are unstable until laterally braced.See Warning on cover.Joists must be laterally supported atcantilever and end bearings by blockingpanels, hangers, or direct attachment toa rim board or rim joist.E1H2A1E2TJI rim joistRim board joint between joistsA3A2L5B4PEnd ofjoists atcenterlineof supportB3B2L3CSB111 8" TJ Rim Board or11 4" TimberStrand LSLH1L1Use B1 or B2 atintermediate bearingswith load bearing orshear wall from aboveL2H1L4LAProtect untreatedwood from directcontact with concrete11 2" knockoutsat approximately12" on-centerBearing plate to beflush with insideface of wall or beamH3StructuralsheathingSafety bracing (1x4 m inimum)at 8' on-center (6' on-center forTJI 110 joists) and extended to abraced end wall. Fasten at each joistwith two 8d (0.113" x 21 2") nailsminimum (see Warning on cover).See Exterior DeckAttachment on page 4SeeAllowable Holeson page 1Additional joistShifted joistINSTALLATION TIPS Subfloor adhesive will improve floor performance, but maynot be required. Squash blocks and blocking panels carry stacked verticalloads (details B1 and B2). Packing out the web of a TJI joist(with web stiffeners) is not a substitute for squash blocks orblocking panels.Plumbing drop When joists are doubled at non-load bearing parallelpartitions, space joists apart the width of the wall forplumbing or HVAC. Additional joist at plumbing drop (see detail above).
DETAIL SCHEDULEEnd bearings (see page 4)E33 4"A1 with blocking panelsE4joist reinforcementA2F1deck cantileverA3 with rim boardPB1permanent bracingIntermediate bearings* (see page 5)Cantilevers less than 5" (see page 5)B1 with blocking panels to support load bearing wall aboveE5 3 4" reinforcement on one side, with vertical blockingB2 with squash blocks to support load bearing wall aboveE6 3 4" reinforcement both sides, with vertical blockingB3 without blocking panels or squash blocks (no wall above)E7 3 4" reinforcement on one side, with horizontal blockingCantilever details (see page 5)E8 3 4" reinforcement on both sides, with horizontal blockingwith TJI rim joistE1no reinforcementE23 4"reinforcement both sidesHanger Details(more connector information on page 8)reinforcement on one sideH1TJI joist to beam (see page 8)H2TJI joist to joist (see page 5) joist on masonry wall or steelH3 TJIbeam (see page 8)Other detailsB4 butting joists with blocking panels (see above)CScolumn support (see page 4)LA exterior deck attachment (see page 4) Wweb stiffeners (see page 6)Lbeam details (see page 9)Pcolumn details (see page 9) *Load bearing wall must stack over wall below. Blocking panels may be required at shear walls above or below.JAVELIN SOFTWARE FRAMING PLANSAWBWEWWeb stiffeners required on each side of joist at bearing. Refer to your Javelin framing plan.Bearing requirements as shown on the Javelin framing plan are job-specific and supersede minimum bearing requirements listed.FASTENING OF FLOOR PANELSGuidelines for Closest On-Center Spacing per RowRim boardTJI (1)(2)Nail Size110, 210,and 230360 and56011 8" TJ 8d (0.113" x 21 2"), 8d (0.131" x 21 2")10d (0.148" x 3"), 12d (0.148" x 31 4")16d (0.162" x 31 2")4"4"(3)6"3"4"(3)6"6"6"16"11 4"TimberStrand LSL4"4"6"(4)11 2"TimberStrand LSLor wider3"4"6"(4)Microllam LVLParallam PSL3"4"8"3"4"6"(1) Stagger nails when using 4" on‑center spacing and maintain 3 8" joist and panel edge distance. One row of fasteners is permitted (two at abutting paneledges) for diaphragms. Fastener spacing for TJI joists in diaphragm applications cannot be less than shown in table. When fastener spacing forblocking is less than spacing shown above, rectangular blocking must be used in lieu of TJI joists.(2) For non-diaphragm applications, multiple rows of fasteners are permitted if the rows are offset at least ½" and staggered.(3) Can be reduced to 3" on-center for light gauge steel straps with 10d (0.148" x 1½") nails.(4) Can be reduced to 4" on-center if nail penetration into the narrow edge is no more than 13 8" (to avoid splitting). Recommended nailing is 12" on-center in field and 6" on-centeralong panel edge. Fastening requirements on engineered drawingssupersede recommendations listed above. Weyerhaeuser recommends using a solvent-based subfloor adhesiveon all contact points between panels and floor framing. SeeRECOMMENDED ADHESIVES on page 2. Nailing rows must be offset at least 1 2" and staggered. 14 ga. staples may be substituted for 8d (0.113" x 21 2")nails if minimum penetration of 1" into the TJI joist orrim board is achieved. Maximum spacing of nails is 18" on-center forTJI joists.
4RIM BOARD DETAILS AND INSTALLATIONPlate nailFloor panel nailRim board to TJI joist11 8" TJ Rim Board or11 4" TimberStrand LSL(see nailing schedule below)Toe nailRim board to TJI joistSheathing may be attachedas shown in A3.42x4 or 2x6 stud wallat 16" on-centerPlate nailFloor panel nailWhenRim board to TJI joistpanel11 4" TimberStrand LSLthicknessrim boardexceeds 7 8",trim sheathingAttach sheathing pertongue atnailing schedule (below)rim boardToe nailRim board to TJI joistTJI joist spanningin either direction12" minimum Install proper blocking toTJI joist to platesupport all panel edgesWeb stiffener required onboth sides at A3. W ONLYA3.1 A3.2 A3.3 A3.1 A3.2 A3.3WWWSpecificationsExterior FaceInteriorFaceWall FramingRim Board ThicknessPlate Nail—16d (0.135" x 31 2")Floor Panel Nail—8d (0.131" x 21 2")Rim Board to TJI Joist—10d (0.131" x 3")Toe Nail—10d (0.131" x 3")TJI Joist to Plate—8d (0.113" x 21 2")Holdowns120 mph Wind ZoneWhen panelthicknessexceeds 7 8",trim sheathingtongue atrim boardTJI joist spanningin either directionTJI joist to plateWeb stiffener required onboth sides at A3.4W ONLYA3.4 A3.4WRim Board Installation DetailA3.3(1)A3.4(1)11 4"11 4"8" o.c.12" o.c.6" o.c.One into each flange6" o.c.6" o.c.4" o.c.6" o.c.Two nails driven at an angle into bottom flange, one each side of web at least 11/2" from endA3.1(1)(2)11 8"16" o.c.A3.2(1)(2)11 4"12" o.c.7 16"structural 1sheathing(3)SheathingBoundary NailingIntermediate NailingMax. Window Opening Height% of Wall with Full Height SheathingSheathingBoundary NailingIntermediate Nailing90 mph Wind Zone2x4 or 2x6 stud wallat 16" on-centerPer CodePer CodePer CodePer Code16" o.c. within 10'of corners(6)16" o.c. within 6'of corners(6)3 8" structural 1sheathing in all areas(4)8d (0.131" x 21 2") at 6" o.c. 8d (0.131" x 2½") at 4" o.c.8d (0.131" x 2½") at 12" o.c.5'-4"(5)70%1 2" gypsum5d (0.086" x 15 8") at 7" o.c.5d (0.086" x 15 8") at 10" o.c.None16" o.c. within 4'of corners(6)none(1) All sheathing shall be properly blocked and nailed.(2) Verify the lateral capacity of the wall. Not all types of code-allowed wall construction provide the same lateral resistance. Check with yourlocal building official or design professional of record.(3) Detail A3.3 shall be a segmented wall, location of full-height structural sheathing per code.(4) Sheathing shall be continuous over all plate-to-plate and plate-to-rim-board interfaces and may butt together at mid-depth of rim boardas shown in A3.4. At foundation, fasten the bottom edge of the sheathing to the sill plate.(5) In addition, one 6'-8" standard door opening is allowed.(6) If required, holdowns shall be Simpson Strong-Tie CS20 (or equivalent) straps attached with four 8d (0.131" x 21 2") nails at each end.As an alternative to holdown straps, wall sheathing may be attached as shown in A3.4. See footnote 4.
FLOOR DETAILSPlate nailBlocking panel:11 8" TJ Rim Board,11 4" TimberStrand LSL,or TJI joistPlate nailWeb stiffener required onboth sides at A2W ONLYRim-tojoist nailToe nailToe nailTJI rim joistWeb stiffener required onboth sides at A1W ONLYA1A1WAttach blocking per A3.1 in rim boardinstallation table aboveA2A2WMust have 1¾" minimum joist bearing at ends. Attachrim joist per A3.1 in rim board installation table above.Exterior Deck AttachmentLoad from aboveStructural exteriorsheathing11 8" TJ Rim Board or11 4" TimberStrand LSLFlashingTreated 2xledger2x4 minimumsquash blockssquash blocks to transfer loadCS Use 2x4 minimum around TJI joist1 16"Maintain 2" distance(minimum) from edge ofledger to fastenerLA Corrosion-resistant fasteners required forwet-service applications
5FLOOR DETAILSLoad bearing or braced/shear wallabove (must stack over wall below)No load bearing wall aboveRim Board,Blocking panel:11 4" TimberStrand LSL, or TJI joist11 8"TJ 2x4 minimumsquash blocks1 16"B1 B1WWeb stiffener required on bothsides at B1W or B2W ONLY.Web stiffener required onboth sides at B3W ONLY.B2 B2W Blocking panels may be required with braced/B3 B3W Blocking panels may be required with braced/shear walls above or below—see detail B1shear walls above or below—see detail B1CANTILEVER DETAILSAt PB1, cantilever back spanmust be permanently bracedwith either direct-applied ceilingalong entire length or permanentbracing at 1 3 points. See detailbelow for connections.11 8" TJ Rim Board or11 4" TimberStrand LSL,typical. Nail with10d (0.131" x 3") nails,one each at top and1 3 bottom flange.Web stiffenerrequired on bothsides at E1W ONLY11 8" TJ Rim Board o r11 4" TimberStrand LSLclosure, typical4'-0" length of 3 4" reinforcement (2'-0" maximumcantilever) on one side at E2,both sides at E3. Attach to joistflange with 8d (0.131" x 21 2")nails at 6" on-center. Whenreinforcing both sides,stagger nails.E1E21 3E3calpi, tyax.8' m8" diameter maximum hole for 117 8"–16"deep blocking panels; 6" diameter maximumfor blocking panels 91 2" deep or shorter than12" long. Do not cut flanges.E1WE41 3thengmer lilev aximu only)tnCa 0" m oadsl'4 ormif(unPB1E5E6F1E8E711 212" length of 3 4"r einforcement on one side atE5/E7, both sides at E6/E8.Attach to joist flanges withone 8d (0.131" x 21 2") nailat each corner.estimvergthlencWoodbackerNail through 2x cantilever, woodbacker, and TJI joist web with 2 rows10d (0.148" x 3") nails at 6" on-center,clinched. Use 16d (0.135" x 31 2") nailswith TJI 560 joists. F1 applies to uniformly loaded joists only.6'-0" length of TJI joist reinforcement (2'-0"maximum cantilever) and filler block at E4. Attachto joist web with 3 rows 10d (0.148" x 3") nails at6" on-center, clinched. Use 4'-0" length with 91 2"and 117 8" TJI joists, and attach to joist web with2 rows 10d (0.148" x 3") nails at 6" on-center,clinched. Not for use with TJI 560 joists.Less than5"Blocking panel between each joist.Full depth vertical blocking at E5 andE6, horizontal blocking at E7 and E8.ileantNail rim to blocking panel andblocking panel to plate withconnections equivalent to floorpanel schedule (E7 and E8)Two 21 2" screws for 2xstrapping connectionsApply subfloor adhesive to allcontact surfacesWhen specified on the layout,one of the bracing optionsshown at right is requiredTwo 8d (0.113" x 21 2") nailsor 21 2" screws, typicalPB1Directly applied ceilingFILLER AND BACKER BLOCKSHANGER BACKER BLOCKInstall tight to top flange (tight to bottom flange with face mount hangers). Single-Family Applications: Attach with ten 10d (0.128" x 3") nails, clinchedwhen possible.M ulti-Family Applications: Attach with fifteen 10d (0.128" x 3") nails, clinchedwhen possible. Filler and Backer Block SizesTJI DepthH2Backer block bothsides of web withsingle TJI joistDOUBLE TJI JOIST FILLER BLOCK Single-Family Applications: Attach withten 10d (0.128" x 3") nails, clinched.Use ten 16d (0.135" x 31 2") nails fromeach side with TJI 560 joists. M ulti-Family Applications: Attach withf ifteen 10d (0.128" x 3") nails, clinched.Use fifteen 16d (0.135" x 31 2") nailsfrom each side with TJI 560 joists.1109½" or 14"117 8"2109½" or117 8"14" or 16"230 or 3605609½" or 14" or 16" 9½" or 14" or117 8"117 8" 16"FillerBlock(1)(Detail H2)2x62x8CantileverFiller(Detail E4)2x64'-0"long2x10 2x6 3 8" 2x10 3 8" 2x6 ½" 2x10 ½"6'-0" sheathing sheathing sheathing sheathinglong 4'-0" long 6'-0" long 4'-0" long 6'-0" longBackerBlock(1)(Detail F1or H2)5 8"or ¾"2x6 3 8" 2x8 3 8" 2x6 ½" 2x8 ½"sheathing sheathing sheathing sheathing¾" or 7 8"7 8"or 1" netTwo2x6Two2x8Notapplicable2x62x8(1) I f necessary, increase filler and backer block height for face mount hangers and maintain 1 8" gap attop of joist. See detail W. Filler and backer block dimensions should accommodate required nailingwithout splitting. The suggested minimum length is 24" for filler and 12" for backer blocks.
WEB STIFFENERS—FLOOR AND ROOF APPLICATIONSGap:1 8" minimum23 4" maximumThree 8d (0.113" x 21 2")nails, clinched. Use three16d (0.135" x 31 2") nailsfor TJI 560 joists.1"(11 2" forTJI 560joists)WEB STIFFENER REQUIREMENTSRequired at allbirdsmouth cuts.Web stiffener both sides.See sizes below.WRequired at allsloped hangers.Tight fitRequired if the sides of thehanger do not e xtend tol aterally support at least 3 8"of the TJI joist top flange.WEB STIFFENER SIZESTJI 110 joists: 5 8" x 25 16" minimum(1)TJI 210 joists: 3 4" x 25 16" minimum(1)TJI 230 and 360 joists: 7 8" x 25 16" minimum(1)TJI 560 joists: 2x4, construction grade or better Only required at intermediatebearing locations when notedon framing plan. (1) PS1 or PS2 sheathing, face grain verticalTYPICAL ROOF AND WALL FRAMINGDETAIL SCHEDULERoof details (see page 7)R1on bevel plateR1Won bevel plate with web stiffenersR3with variable slope seat connectorR3Wwith seat connector and web stiffenersR5with birdsmouth cutR7intermediate bearingR7Wintermediate bearing with web stiffenersR8 2x4 outrigger and filler with birdsmouth cutR92x4 outrigger without fillerR102x4 outrigger with fillerR10 2x4 outrigger with filler and web stiffeners WR14ridge detailR14Wridge detail, with web stiffenersOther detailsO2x overhang at end wallSBshear blocking (see page 8)Wweb stiffenersHanger details (see page 8)H5slope adjusted hangerH6header on slopeJoists must be l aterally supported at cantilever and end bearingsby blocking panels, hangers, or direct attachment to a rim board or rim joist.6
Safety bracing (1x4 minimum)at 8' on-center (6' on-center forTJI 110 joists) and extended to abraced end wall. Fasten at eachjoist with two 8d (0.113" x 21 2")nails minimum. (See Warningon cover).See Filler and BackerBlocks, page 5H5R14H6R10R72x4 block forsoffit supportBlocking panels orshear blocking optionalfor joist stability at intermediate supportsR9OR3R1Install cripplestight to king studat each end ofheaderDouble joistmay berequiredWARNINGJoists are unstable untillaterally braced.See Warning on cover.R10R8Notch aroundTJI joist topflangeTimberStrand LSL blocking:– 1 row at 10'–16' height– 2 rows at 16'–24' height– 3 rows at 24'–30' heightJoists must be laterally supported at cantileverand end bearings by shear blocking, hangers, ordirect attachment to a rim board or rim joistCeiling JoistsLet-inbracingStuds must bedoubled whennotched in middlethird of length.Refer to hole chartsfor allowable holesand notches.R5R124"max.Safety bracing.Lack of proper bracing canresult in s erious accidents.SeeAllowableHoles,page 1Lateral bracingrequired atend bearings24" muximmaCeiling joist must bebraced at 18" on-centerDo not bevel cutjoist beyond insideface of wall
7ROOF DETAILSShear blocking:11 8" TJ Rim Board,11 4" TimberStrand LSL,or TJI joistV-cut shear blocking:11 4" TimberStrand LSLrim boardWeb stiffenerrequired on bothsides at R3W ONLYWeb stiffenerrequired on bothsides at R1W ONLYBeveled bearingplate required whenslope exceeds 1 4:12R1 R1W1 3adjacent span maximumVariable slopeseat connector1 3R3 R3Wadjacent span maximumIntermediate BearingBlocking panels or shear blocking may be specifiedfor joist stability at intermediate supportsBeveled web stiffenerrequired on both sides.Cut to match roof slope.TJI joistflange mustbear fully onplate"2'-0 umximam2x4 block forsoffit supportR5Web stiffenerrequired on bothsides at R7W ONLYBeveled bearing platerequired whenslope exceeds1 4:12Birdsmouthcut must notoverhanginside faceof plateBirdsmouth cut allowed at low end of joist onlyTwist strap and backer blockrequired at R7S with slopesgreater than 3:12. See NailingRequirements, page 8.R7R7 R7WS
mi 4'-0nim "um2x4 one side. Use 2x4both sides if joistspacing is greaterthan 24" on-center.2x4 one side. Use 2x6if joist spacing is greaterthan 24" on-center.mi 4'-0nim "um2 rows 8d(0.113" x 21 2")nails at8" on‑center11 2"10d (0.128" x 3")nails at 8" on-centerBeveled 2x4 block withbeveled web stiffeneron opposite side of web0"2'- umximamR82 rows 8d(0.113" x 21 2")nails at8" on‑center2x4 one side. Use 2x4 bothsides if joist s pacing isgreater than 24" on-center0"4'- mumnimi0"2'- umximamBirdsmouth cut allowed at low end of joist onlyLSTA18 (Simpson or USP)strap with twelve10d (0.148" x 11 2") nails11 2"Beveled 2x4 block. Secondbeveled web stiffenerrequired on opposite sideat R10W ONLYBeveled bearingplate required whenslope exceeds 1 4:12R10 R10WBeveled 2x4 blockBeveled web stiffeneron both sidesR9Birdsmouth cut allowed at low end of joist onlyFiller"2'-0 muximamDouble beveled bearing platewhen slopeexceeds 1 4:12R14 R14WWeb stiffenerrequired onboth sides atR14W ONLYAdditional blockingmay be required forshear transferStrap nails:Leave 23 8"minimumend distance,typical
8FRAMING CONNECTORSAPPROVED HANGERS The following manufacturers are approved to supply hangersfor Trus Joist products:– Simpson Strong-Tie Co., Inc.: 1-800-999-5099– USP Structural Connectors: 1-800-328-5934 Hanger design loads differ by support type and may exceed thecapacity of the support and/or supported member. Contact yourWeyerhaeuser r epresentative or refer to Weyerhaeuser software.Hanger height mustbe a minimum of 60%of joist depth Top mounthanger NAILING REQUIREMENTS Fill all round, dimple, and positive angle holes with the propernails. Hanger nails are usu
FOR FLOOR AND TJI 110 ROOF FRAMING TJI 210 TJI 230 TJI 360 TJI 560 Joists WARNING: DO NOT walk on joists until braced. INJURY MAY RESULT. WARNING: DO NOT stack building materials on unsheathed joists. Stack only over beams or walls. WARNING: DO NOT walk on joists that are lying fl
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