Technical Specifications

02105 Williams County Rd. 12-C • Bryan, OH 43506 P. 419-636-6715 E. [e-mail]
ESR-1782 TER No. 1711-01
Table 1
*EngineeredWoodProduct(EWP)
1.  Basedonloaddurationof1.0.SpacingmaybeadjustedbytheapplicableloaddurationasspeciedinNDS2015.   
2. Fastenersarerequiredtohavefullthreadpenetrationintothemainmember.       
3. FastenersshallbestaggeredfromthetoptothebottomalongthelengthoftheledgerwhilemaintainingtherequirededgeandenddistancesasshowninFigures1and2.
4. Amaximum1/2�structuralsheathing,fastenedpercode,maybeinstalledbetweentheledgerandthebandjoist.  
5. Multipleledgerpliesshallbefastenedtogetherpercodeandindependentofthe5/16�PowerLag
®
.
6. Minimumledgerboardrequirements:1-1/2�thickby7-1/2�depth.Mustbegreaterthanorequaltothedepthofthedeckjoistandnogreaterthanthedepthofthebandjoist.
7. SolidsawnledgershallbeHF/SPForDF/SPspecies(specicgravityof0.42and0.50respectively),designedbyothers.  
8. Ledgermaterialsassumedtobeinwetservicecondition.         
9. Minimumbandjoistrequirements:SPF(specicgravityof0.42)solid-sawnlumber1-1/2�thickand7-1/2�depth;EngineeredWoodProduct(EWP)1�thickby7-1/4�depth.
10. Fastenerspacingfor4�fastenersisbasedontestedloads.Thedesignvaluesusethelesserofa1/8�deectionorafactorofsafetyequivalenttoorgreaterthanthatofthe
codecompliantlagscrewapplication.         
11. Fastenerspacingfor5�fastenersisbasedonpreviouslypublishedreferencelateraldesignvalues.
DECK LEDGER TECHNICAL BULLETIN
Loading Head Fastener 2x Nominal Band Joist Maximum Deck Joist Spans
Condition Type Length Ledger Species Material Up to 6' Up to 8' Up to 10' Up to 12' Up to 14' Up to 16' Up to 18'
Maximum On-Center Spacing of PowerLag
®
Fasteners
HF/SPF
Sawn Lumber 22 16 16 15 12 11 10
T-Star 1" min EWP* 23 17 16 15 13 11 10
Washer
DF/SP
Sawn Lumber 34 25 20 17 13 12 10
1" min EWP* 23 17 16 14 12 11 9
HF/SPF
Sawn Lumber 28 21 17 12 11 9 8
Hex 1" min EWP* 21 14 11 9 8 7 6
Washer
DF/SP
Sawn Lumber 30 22 18 12 10 9 8
1" min EWP* 26 19 16 13 11 10 8
4" or 5"
HF/SPF
Sawn Lumber 16 16 12 10 9 8 7
T-Star 1" min EWP* 16 16 13 11 9 8 7
Washer
DF/SP
Sawn Lumber 24 18 13 11 9 8 7
1" min EWP* 16 15 12 10 9 7 7
HF/SPF
Sawn Lumber 20 13 11 9 7 6 6
Hex 1" min EWP* 14 10 8 7 6 5 4
Washer
DF/SP
Sawn Lumber 21 13 10 8 7 6 5
1" min EWP* 18 14 11 9 8 7 6
Figure 2
Figure 1
1.  Forguidanceondesigningadeckledgertotrussconnectionwhereabandjoistisnotused,seeSBCA’sTechNote,“AttachmentofResidentialDeckLedgertoMetalPlateConnected
WoodTrussFloorSystem”availableatwww.sbcindustry.com.
2. AttachmentofadeckledgertoconcreteorCMU/masonryusingPowerLagsisoutsidethescopeofthistechnicalbulletin.
3. Thistechnicalbulletinissubjecttoperiodicreviewandupdates.Forthemostcurrentversion,visitwww.spax.us.
4. ForacomprehensivereviewofSPAXPowerLagsforuseindeckledgerattachment,pleasesee“DrJTERNo.1711-01”availableatwww.drjengineering.com.
Form S-1803 Rev 6/18
40 psf
Live
10 psf
Dead
60 psf
Live
10 psf
Dead
+
2015IRCTableR507.2,2012IRCTableR507.2
On-Center Spacing
per Table 1
3-3/4"
Min.
1/2" Maximu m
Structural Sheathing
2" Nominal
Deck Ledger
Band Joist
per Table 1
5/16" Hex Washer Head
or T-Star Washer Head
PowerLag
2" Min.
2" Min.