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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.

ITT Models
IUT Models
SUR/L Models
THAI Models
LSSUH Models


ITT Models

Joist
Height		 Model Nails Uplift Download
Header Joist (133) DF/SP SPF
Joist Width = 2-1/2
9-1/4 ITT39.37 6 - 10d 2 - 10dx1-1/2 210 1615 1200
11-7/8 ITT311.88 6 - 10d 2 - 10dx1-1/2 210 1615 1200
14 ITT314 6 - 10d 2 - 10dx1-1/2 245 1615 1200
16 ITT316 6 - 10d 2 - 10dx1-1/2 210 1615 1200
 Joist Width = 3-1/2
9-1/4 ITT49.37 6 - 10d 2 - 10dx1-1/2 210 1615 1200
11-7/8 ITT411.88 6 - 10d 2 - 10dx1-1/2 210 1615 1200
14 ITT414 6 - 10d 2 - 10dx1-1/2 245 1615 1200
16 ITT416 6 - 10d 2 - 10dx1-1/2 210 1615 1200
itt model


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IUT Models
Joist
Height		 Model Nails Uplift Download
Header Joist (133) DF/SP SPF
Joist Width = 2-1/2
9-1/4 IUT310 8 - 10d 2 - 10dx1-1/2 210 890 770
11-7/8 IUT312 10 - 10d 2 - 10dx1-1/2 210 1110 960
14 IUT314 14 - 10d 2 - 10dx1-1/2 245 1555 1345
16 IUT316 16 - 10d 2 - 10dx1-1/2 210 1775 1535
Joist Width = 3-1/2
9-1/4 IUT410 8 - 10d 2 - 10dx1-1/2 210 890 770
11-7/8 IUT412 10 - 10d 2 - 10dx1-1/2 210 1110 960
14 IUT414 14 - 10d 2 - 10dx1-1/2 245 1555 1345
16 IUT416 16 - 10d 2 - 10dx1-1/2 210 1775 1535
iut model


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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”. To view a thumbnail image of the detail, roll your mouse over the download link.

  Attachment to Wood Beam – Hanger - DWG / PDF
Attachment to Steel Beam – Notched - DWG / PDF
Attachment to Steel Beam – Hanger - DWG / PDF
Universal Forest Products Eastern Division, Inc. manufactures the Open Joist™ product as a licensee of Distribution Open Joist 2000, Inc.  All Open Joist product design and engineering calculations are created by the licensor, Distribution Open Joist 2000, Inc.