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Open Joist™Recommended Connectors

Recommended Connectors
Attachment to Wood/Steel Beam

While several connector manufacturers produce hangers that "fit" Open Joist™ floor trusses, SIMPSON Strong-Tie® Connectors offer the most complete line of steel connectors for the product.

The Connector Charts below illustrate values for the most common SIMPSON connectors used in Open Joist installation. All connectors used with Open Joist trusses must be chosen to adequately support loads and stresses present in a specific job situation.

ITS Models
IUS Models
SUR/L Models
THAI Models
LSSUH Models


ITS Models

Joist
Height
Model Nails Uplift Download
Header Joist (133) DF/SP SPF
Joist Width = 2-1/2
9-1/4 ITS2.56/9.25 6 - 10d 0 105 1520 1150
11-7/8 ITS2.56/11.88 6 - 10d 0 105 1520 1150
14 ITS2.56/14 6 - 10d 0 105 1520 1150
16 ITS2.56/16 6 - 10d 0 105 1520 1150
 Joist Width = 3-1/2
9-1/4 ITS3.56/9.25 6 - 10d 0 105 1520 1150
11-7/8 ITS3.56/11.88 6 - 10d 0 105 1520 1150
14 ITS3.56/14 6 - 10d 0 105 1520 1150
16 ITS3.56/16 6 - 10d 0 105 1520 1150
its model


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IUS Models
Joist
Height
Model Nails Uplift Download
Header Joist (133) DF/SP SPF
Joist Width = 2-1/2
9-1/4 IUS2.56/9.25 8 - 10d 0 75 950 815
11-7/8 IUS2.56/11.88 10 - 10d 0 75 1185 1020
14 IUS2.56/14 14 - 10d 0 75 1660 1425
16 IUS2.56/16 16 - 10d 0 75 1895 1630
Joist Width = 3-1/2
9-1/4 HU410 14-16d 6-10d 1135 2085 2535
11-7/8 IUS3.56/11.88 12-10d 0 75 1420 1220
14 IUS3.56/14 14 - 10d 0 75 1660 1425
16 IUS3.56/16 16 - 10d 0 75 1725 1485
ius model HU410 Hanger


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SUR/L Models
Joist
Height
Model  Nails Uplift Download
Header Joist (133) DF/SP SPF
Joist Width = 2-1/2
9-1/4 SUR/L310 14 -16d 6 - 10dx1-1/2 620 1860 1610
11-7/8 SUR/L310 14 -16d 6 - 10dx1-1/2 620 1860 1610
14 SUR/L310 14 -16d 6 - 10dx1-1/2 620 1860 1610
16 SUR/L314 18 - 16d 8 - 10dx1-1/2 825 2395 1795
Joist Width = 3-1/2
9-1/4 SUR/L410 14 -16d 6 -16d 915 1860 1610
11-7/8 SUR/L410 14 -16d 6 -16d 915 1860 1610
14 SUR/L310 14 -16d 6 -16d 915 1860 1610
16 SUR/L414 18 - 16d 8 -16d 1220 2395 1795
sur/l model


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THAI Models
Joist
Height
Model Nails Uplift Download
Header Joist (133) DF/SP SPF
Joist Width = 2-1/2
9-1/4 THAI322 6 -10d 2 - 10dx1-1/2 1835 1590
11-7/8 THAI322 6 -10d 2 - 10dx1-1/2 1835 1590
14 THAI322 6 -10d 2 - 10dx1-1/2 1835 1590
16 THAI322 6 -10d 2 - 10dx1-1/2 1835 1590
Joist Width = 3-1/2
9-1/4 THAI422 6 -10d 2 - 10dx1-1/2 1835 1590
11-7/8 THAI422 6 -10d 2 - 10dx1-1/2 1835 1590
14 THAI422 6 -10d 2 - 10dx1-1/2 1835 1590
16 THAI422 6 -10d 2 - 10dx1-1/2 1835 1590
thai model


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LSSUH Models
Joist
Height
Model Nails Uplift Download
Header Joist (133) DF/SP SPF
Joist Width = 2-1/2
9-1/4 LSSUH310 14-16d 12 - 10dx1-1/2 990 1600 1385
11-7/8 LSSUH310 14-16d 12 - 10dx1-1/2 990 1600 1385
14 LSSUH310 14-16d 12 - 10dx1-1/2 990 1600 1385
16 LSSUH310 14-16d 12 - 10dx1-1/2 990 1600 1385
Joist Width = 3-1/2
9-1/4 LSSU410 14 -16d 12 - 10dx1-1/2 990 1825 1580
11-7/8 LSSU410 14 -16d 12 - 10dx1-1/2 990 1825 1580
14 LSSU410 14 -16d 12 - 10dx1-1/2 990 1825 1580
16 LSSU410 14 -16d 12 - 10dx1-1/2 990 1825 1580
lssuh model


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Hanger Charts – Notes
1. a.) Loads listed are based on hanger attachment to a Douglas Fir-Larch (DF)/Southern Pine (SP) or Spruce-Pine-Fir (SPF) species of LVL or solid Sawn header.
  b.) Down Load column represents floor loading at 100% duration. Other load durations may apply; refer to the current Simpson Strong-Tie® Wood Construction Connectors catalog for allowable increases.
  c.) Minimum nail penetration required to achieve loads listed for face mount hangers: 10d common min. penetration = 1-3/4" 16d common min. penetration = 2".
  d.) THAI hangers require a minimum of 4 top and 2 face nails installed.
  e.) Uplift loads are based on an SPF joist and have been increased 33% for earthquake and wind loading with no further increase allowed. Reduce according to the code for normal loading criteria like cantilever construction.
2. Hanger height less than 60% of joist height. Potential joist rotation may occur. See Simpson catalog for additional information.
3. Top flange hanger configuration and thickness of top flange need to be considered for flush frame conditions.
4. Refer to the current Composite Wood Products Connectors catalog for hanger models not shown.
5. Joists taller than 14" require lateral restraint at the top chord (or near the top) when used with the THAI hanger. Lateral restraint can be accomplished with filler blocks or blocking.
6. When filler blocks are required, the thickness of the filler blocks should provide an outside surface even with the outside edge of the flange.
7. All nails shown are common nails unless otherwise noted.

Attachment to Wood/Steel Beam
To download one of the details below, right-click or Ctrl-click on the link, then choose “Save Target As” or “Save”.

  Attachment to Wood Beam – Hanger - DWG / PDF
Attachment to Steel Beam – Notched - DWG / PDF
Attachment to Steel Beam – Hanger - DWG / PDF