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LF I-Joist Hanger

LF

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This product is only available in Canada

The LF series comprises economical face-mount hangers ideal for applications not requiring web stiffeners. The height of the LF is designed to support the top flange of the I-joist. This feature not only reduces installation time, but also lowers material costs.

Key Features

  • These face-mount hangers cannot be modified but will accommodate a skew of up to 5°
  • Can be used with joists at slopes up to 1/2:12, with a 10% reduction in ultimate hanger strength
  • Features optional triangle nail holes for increased uplift

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.
  • Web stiffeners are not required with I-joists when the joist top flange is laterally supported by the sides of the hanger. I-joist manufacturers may require web stiffeners.

Uplift Resistances

  • Models have optional triangle joist nail holes for additional uplift. Properly attached web stiffeners are required.
  • LF — Add two additional 10d x 1 1/2" joist nails for a total factored uplift resistance of 415 lb. D.Fir-L and 375 lb. S-P-F (KD=1.15).

Related Links

Catalogue Pages

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Load Tables

Joist Size (in.) Model No. Web Stiff Reqd. Ga. Dimensions (in.) Fasteners Factored Resistance
D.Fir-L S-P-F
W H B Min./Max. Header Joist Uplift Normal Uplift Normal
(KD = 1.15) (KD = 1.00) (KD = 1.15) (KD = 1.00)
lb. lb. lb. lb.
kN kN kN kN
1 1/2 x 9 1/4 – 9 1/2 LF159 — 18 1 9/16 9 1/4 2 — (10) 10d (1) #8 x 1 1/4" WS 105 2435 105 1845
0.47 10.83 0.47 8.21
1 1/2 x 11 1/4 – 11 7/8 LF1511 — 18 1 9/16 11 1/4 2 — (12) 10d (1) #8 x 1 1/4" WS 105 2435 105 1845
0.47 10.83 0.47 8.21
1 3/4 x 9 1/4 – 9 1/2 LF179 — 18 1 13/16 9 1/4 2 — (10) 10d (1) #8 x 1 1/4" WS 105 2525 105 2155
0.47 11.23 0.47 9.60
1 3/4 x 11 7/8 LF1711 — 18 1 13/16 11 1/4 2 — (12) 10d (1) #8 x 1 1/4" WS 105 2845 105 2155
0.47 12.66 0.47 9.60
1 3/4 x 14 LF1714 — 18 1 13/16 13 1/2 2 — (14) 10d (1) #8 x 1 1/4" WS 105 2845 105 2155
0.47 12.66 0.47 9.59
2 1/16 x 9 1/2 LF219 — 18 2 1/8 8 15/16 2 — (10) 10d (1) #8 x 1 1/4" WS 105 2525 105 2155
0.47 11.23 0.47 9.60
2 1/16 x 11 7/8 LF2111 — 18 2 1/8 11 1/4 2 — (12) 10d (1) #8 x 1 1/4" WS 105 2880 105 2270
0.47 12.81 0.47 10.11
2 1/16 x 14 LF2114 — 18 2 1/8 13 9/16 2 — (14) 10d (1) #8 x 1 1/4" WS 105 3235 105 2385
0.47 14.39 0.47 10.61
2 5/16 x 9 1/2 LF239 — 18 2 3/8 9 1/4 2 — (10) 10d (1) #8 x 1 1/4" WS 105 2525 105 2155
0.47 11.23 0.47 9.60
2 5/16 x 11 7/8 LF2311 — 18 2 3/8 11 1/4 2 — (12) 10d (1) #8 x 1 1/4" WS 105 2880 105 2270
0.47 12.81 0.47 10.11
2 5/16 x 14 LF2314 — 18 2 3/8 13 1/2 2 — (14) 10d (1) #8 x 1 1/4" WS 105 3235 105 2385
0.47 14.39 0.47 10.61
2 1/2 x 9 1/4 – 9 1/2 LF259 — 18 2 9/16 9 1/4 2 — (10) 10d (1) #8 x 1 1/4" WS 105 2525 105 2155
0.47 11.23 0.47 9.60
2 1/2 x 11 1/4 – 11 7/8 LF2511 — 18 2 9/16 11 1/4 2 — (12) 10d (1) #8 x 1 1/4" WS 105 2880 105 2270
0.47 12.81 0.47 10.11
2 1/2 x 14 LF2514 — 18 2 9/16 13 1/2 2 — (14) 10d (1) #8 x 1 1/4" WS 105 3235 105 2385
0.47 14.39 0.47 10.61
3 x 9 1/4 – 9 1/2 LF2-159 — 18 3 1/8 9 1/4 2 — (10) 10d (2) #8 x 1 1/4" WS 105 2525 105 2150
0.47 11.23 0.47 9.60
3 x 11 1/4 – 11 7/8 LF2-1511 — 18 3 1/8 11 1/4 2 — (12) 10d (2) #8 x 1 1/4" WS 105 2880 105 2270
0.47 12.81 0.47 10.11
3 1/2 x 9 1/4 – 9 1/2 LF359 YES7 18 3 9/16 9 1/4 2 — (10) 10d (2) #8 x 1 1/4" WS 105 2525 105 2155
0.47 11.23 0.47 9.60
3 1/2 x 11 1/4 – 11 7/8 LF3511 YES7 18 3 9/16 11 1/4 2 — (12) 10d (2) #8 x 1 1/4" WS 105 2880 105 2270
0.47 12.81 0.47 10.11
3 1/2 x 14 LF3514 YES7 18 3 9/16 13 1/2 2 — (14) 10d (2) #8 x 1 1/4" WS 105 3235 105 2385
0.47 14.39 0.47 10.61
  1. 10d common nails may be used instead of the specified 16d nails at 0.83 of the tabulated value.
  2. Uplift loads have been increased 15% for earthquake or wind loading with no further increase allowed. Reduce by 15% for standard term loading (KD=1.00) such as in cantilever construction.
  3. MIN nailing quantity and load values — fill all round holes; MAX nailing quantity and load values — fill all round and triangle holes.
  4. D-Fir.L factored resistances can be used for most LVL. Verify with manufacturer prior to selecting hanger.
  5. Web stiffeners are required when top flange isn’t supported laterally by the hanger.
  6. Web stiffeners are required when supporting double I-joists with flanges less than 1 5/16" thick.
  7. 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).
  8. 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.

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT