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THA/THAC/THAR/L Adjustable Truss Hangers

THA/THAC/THAR/L

The THA series' extra long straps allow full code nailing and can be field-formed to give top-flange hanger convenience.

Designed for 4x2 floor trusses and 4x beams, the THAR/L422 has a standard skew of 45°. Straps must be bent for top-flange hanger installation. Positive-angle nailing (PAN) helps eliminate splitting of 4x2 truss bottom chords.

Material

  • See table

Finish

  • Galvanized. Some products available in ZMAX® coating. See Corrosion Information.

Installation

  • Use all specified fasteners; see General Notes.
  • The following installation methods may be used:
    • Top-Flange Installation:
      The straps must be field formed over the header — see table for minimum top-flange requirements. Install top and face nails according to the table. Top nails shall not be within 1/4" from the edge of the top-flange members. For the THA29, nails used for joist attachment must be driven at an angle so that they penetrate through the corner of the joist and into the header. For all other top-flange installations, straighten the double-shear nailing tabs and install the nails straight into the joist.
    • Face-Mount Installation:
      Install all face nails according to the table. Not all nail holes will be filled on all models. On models where there are more nail holes than required, the lowest 4 face holes must be filled. Nails used for the joist attachment must be driven at an angle so that they penetrate through the corner of the joist into the header.
    • Alternate Installation:
      The THA 4x hangers may be installed in a top-flange configuration using the tabulated fasteners for face-mount installation and achieve the face-mount installation loads. Install the tabulated face nails into the face and top of the carrying member. Nails used for the joist attachment must be driven at an angle so that they penetrate through the corner of the joist into the header.
    • Suspended Beam:
      Refer to engineering letter THA and Suspended Joists (L-C-THAALT).
    • Uplift:
      Lowest face nails must be filled to achieve uplift loads.
  • View step-by-step installation instructions in the Installer's Pocket Guide (S-C-INSTALL).

Options

  • THA hangers available with the header flanges turned in for 3 5/8" (except THA413) and larger, with no load reduction — order THAC hanger

Related Literature

Load Tables

    These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

  1. 16d sinkers may be used to replace 16d commons at 0.85 of table load.
  2. Uplift has been increased for wind or earthquake loading with no further increase allowed; reduce where other loads govern.
  3. Roof loads are 125% of floor loads unless limited by other criteria.
  4. THAR/L422 with (4) 10d top nails and (2) 10d face nails: when the hanger height is between 9" to 12", the allowable download is 1,440 lb. for DFL and 1,210 lb. for SPF. No further increase allowed.
  5. For top flange installation on a nailer (see detail above), install joist nails straight by bending the double shear tabs.
  6. For single 2x and 3x nailers, the following THA hangers can be installed using 10d x 1 1/2" top nails and (2) 16d face nails with reduced allowable loads as noted: THA418/THA422: 1,415 lb. for DFL, 1,215 lb. for SPF; THA426: 2,245 lb. for DFL, 1,930 lb. for SPF.
  7. Min. Top Flange refers to the minimum length of strap that must be field-formed over the header.
  8. Nails: 16d = 0.162" dia. x 3 1/2" long, 16d x 2 1/2" = 0.162" dia. x 2 1/2" long, 10d = 0.148" dia. x 3" long, 10d x 1 1/2" = 0.148" dia. x 1 1/2" long. See other nail sizes and information.

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
THASee specific model numbers for code listings.
THA213 ESR-2551 ESR-2523 RR25804 FL10447
THA218 ESR-2551 ESR-2523 RR25804 FL10447
THA218-2 ESR-2551 ESR-2523 RR25804 FL10447
THA222-2 ESR-2551 ESR-2523 RR25804 FL10447
THA29 ESR-2551 ESR-2523 RR25804 FL10447
THA413 ESR-2551 ESR-2523 RR25804 FL10447
THA418 ESR-2551 ESR-2523 RR25804 FL10447
THA422 ESR-2551 ESR-2523 RR25804 FL10447
THA422-2 FL11468
THA426 FL11468
THA426-2 FL11468
THACSee specific model numbers for code listings.
THAC418 ESR-2551 ESR-2523 RR25804 FL10447
THALSee specific model numbers for code listings.
THAL422 ESR-2551 ESR-2523 RR25804 FL10447
THAR422 ESR-2551 ESR-2523 RR25804 FL10447

ESR-2523 is an Index of many of Simpson Strong-Tie Stamped and Welded Cold-formed Steel Products for Wood or Cold-formed Steel Construction

Drawings

Part Orthographic Perspective
THANone
THA View 1
DWG DXF
THA On I Beam
DWG DXF
THA View 2
DWG DXF
THA
DWG DXF
THA213
THA213
DWGDXF
THA213 front view
DWG DXF
THA213 left view
DWG DXF
THA213 right view
DWG DXF
THA213 top view
DWG DXF
None
THA218
THA218
DWGDXF
THA218 front view
DWG DXF
THA218 left view
DWG DXF
THA218 right view
DWG DXF
THA218 top view
DWG DXF
Truss/Rafter to Masonry/Concrete Connectors
DWG DXF
Truss/Rafter to Wood Top Plate 1
DWG DXF
THA218-2
THA218-2
DWGDXF
THA218-2 front view
DWG DXF
THA218-2 left view
DWG DXF
THA218-2 right view
DWG DXF
THA218-2 top view
DWG DXF
None
THA222-2
THA222-2
DWGDXF
THA222-2 front view
DWG DXF
THA222-2 left view
DWG DXF
THA222-2 right view
DWG DXF
THA222-2 top view
DWG DXF
High Wind-Resistant Construction D8: Girder/Truss to Wood Wall Framing
DWG DXF
Girder/Truss to Concrete Connections 1
DWG DXF
THA29
THA29
DWGDXF
THA29 front view
DWG DXF
THA29 left view
DWG DXF
THA29 right view
DWG DXF
THA29 top view
DWG DXF
THA29
DWG DXF
THA413
THA413
DWGDXF
THA413 front view
DWG DXF
THA413 left view
DWG DXF
THA413 right view
DWG DXF
THA413 top view
DWG DXF
None
THA418
THA418
DWGDXF
THA418 front view
DWG DXF
THA418 left view
DWG DXF
THA418 right view
DWG DXF
THA418 top view
DWG DXF
None
THA422
THA422
DWGDXF
THA422 front view
DWG DXF
THA422 left view
DWG DXF
THA422 right view
DWG DXF
THA422 top view
DWG DXF
None
THA422-2
THA422-2
DWGDXF
THA422-2 front view
DWG DXF
THA422-2 left view
DWG DXF
THA422-2 right view
DWG DXF
THA422-2 top view
DWG DXF
None
THA426
THA426
DWGDXF
THA426 front view
DWG DXF
THA426 left view
DWG DXF
THA426 right view
DWG DXF
THA426 top view
DWG DXF
High Wind-Resistant Construction D50: Floor to Masonry/Concrete
DWG DXF
THA426-2
THA426-2
DWGDXF
THA426-2 front view
DWG DXF
THA426-2 left view
DWG DXF
THA426-2 right view
DWG DXF
THA426-2 top view
DWG DXF
None
THACNone None
THAC418
THAC418
DWGDXF
THAC418 front view
DWG DXF
THAC418 left view
DWG DXF
THAC418 right view
DWG DXF
THAC418 top view
DWG DXF
None
THALNone None
THAL422
THAL422
DWGDXF
THAL422 front view
DWG DXF
THAL422 top view
DWG DXF
THAL422
DWG DXF
THAR422None None