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LT Hanger

LT

This product is only available in Canada

A dedicated range of top-flange I-joist hangers meeting the unique needs of I-joists while offering superior performance and ease of installation.

The LT series of top-flange hangers is designed for use with wood I-joists. Installation is fast and easy. The hanger's top flange simplifies placement, and the side flanges laterally support the I-joist top flange, eliminating the need for web stiffeners. Securing the carried I-joist is simple with only one or two screws required into the bottom flange through the seat of the hanger.

Material

  • 18 gauge

Finish

  • Galvanized

Installation

  • Use all specified fasteners. Verify that the header can take the required fasteners specified in the table.
  • See General Instructions for the Installer for additional information.
  • LT's optional triangle nail holes may be used for increased uplift capacity. See Optional Nailing for Increased Uplift table.
  • For sloped joists up to 1/4:12 there is no reduction, between 1/4:12 and up to 1/2:12, tests show a 10% reduction in ultimate hanger strength. Local crushing of the bottom flange or excessive deflection may be limiting; check with joist manufacturer for specific limitations on bearing of this type.

Options

  • Because these hangers are fully die-formed, they cannot be modified. However these models will normally accommodate a skew of up to 5°.

Factored Resistances

  • The LT hanger has locations for optional nails if additional uplift is needed. Optional uplift nailing requires the addition of properly-secured web stiffeners. See the load tables for minimum required fasteners and uplift capacities.

Codes

Related Links

Catalogue Pages

Related Literature

Load Tables

LT Series with Various Header Applications

  1. When I-joist is used as header, all nails must be 10d x 1 1/2".
  2. Resistances may not be increased for short-term loading.
  3. Uplift resistances are based on D.Fir-L, and have been increased 15% for wind or earthquake loading with no further increase allowed. Divide by 1.15 for normal loading criteria like cantilever construction. For S-P-F use 0.71 x resistance.
  4. Applies to LVL headers made primarily from Douglas Fir or Southern Pine. For LVL made primarily from Spruce Pine Fir or similar less dense veneers, use the values found in the S-P-F column.
  5. For l-joist flanges less than 1 1/2" thick multiply table values by a factor of 0.85.
  6. Minimum solid header thickness to achieve LT table loads is 1 3/4".
  7. Structural composite lumber is LVL, LSL and Parallam® PSL.
  8. ITS optional installation requires web stiffeners installed per I-joist manufacturers recommendations.
  9. For 16 and 18 gauge, 3 1/2" wide I-joist hangers, web stiffeners are required when the factored reaction is greater than 2330 lb. (10.36 kN).
  10. Nails: 16d = 0.162" dia. x 3 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.

Parallam is a registered trademark of iLevel® by Weyerhaeuser.

Nailer Table

This table indicates the maximum factored normal resistances for LT hangers used on wood nailers. The header nail type must be substituted for those listed in other tables.

  1. Maximum factored uplift resistance (KD = 1.15) for nailer applications is the lesser of the value shown in "Various Header Applications" table or 310 lb. (1.38kN).
  2. For 16 and 18 gauge, 3 1/2"-wide I-joist hangers, web stiffeners are required when the factored reaction is greater than 2330 lb. (10.36 kN).
  3. Steel nailer factored resistances apply to steel header material with thickness between 1/4" and 3/4" with minimum Fy = 250 MPa. Design of steel header by Designer.
  4. 0.157" x 5/8" long powder-actuated fastener = PDPAT-62KP. A red (level 5) or purple (level 6) load may be required to achieve specified penetration.
  5. Nails: 16d = 0.162" dia. x 3 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.

Optional Nailing for Increased Uplift

  1. Factored resistances have been increased 15% for wind or earthquake loading with no further increase allowed. Reduce according to the code for normal loading criteria such as in cantilever construction.
  2. Web stiffeners are required on I-joist for additional nailing.
  3. Nails: 16d = 0.162" dia. x 3 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.

Product Table

  1. When I-joist is used as a header, all header fasteners must be 10d x 1 1/2". See footnotes on tables above for reduction values when flange material is less than 1 1/2" thick.
  2. See tables above for specific notes on individual model types.
  3. For 16 and 18 gauge, 3 1/2" wide I-joist hangers, web stiffeners are required when the factored reaction is greater than 2330 lbs. (10.36 kN).