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ITS/ITT/MIT/HIT Engineered Wood Products Hangers

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

ITS
NEW! The innovative ITS sets a new standard for engineered wood top flange hangers. The ITS installs faster and uses fewer nails than any other EWP top flange hanger. The new Strong-Grip™ seat and Funnel Flange™ features allow standard joist installation without requiring joist nails resulting in the lowest installed cost. The Strong-Grip™ seat firmly secures I-joists with flange thicknesses from 1 1/8" to 1 1/2". The ITS design maintains superior allowable download capacities equal to or greater than the ITT for Douglas Fir and all SCL headers

ITT
Nail the ITT's special bend-tab with 10dx1 1/2" nails at approximately 45° into the bottom flange of the I-joist when web stiffeners are not used. The bend tab can also be nailed directly into the web stiffener. This constrains the I-joist, helping to reduce squeaks resulting from joist movement. Reduced embossing on the ITT's top flange, and the hanger height sized less than the joist height allow easier fitting for smooth floor alignment. I-joist flange thickness for bend-tab application is 1 1/8" to 1 1/2".

MIT/HIT - Patented Positive Angle Nailing (PAN)
PAN is specifically designed for I-joists when used with the MIT or HIT. With PAN, the nail hole material is not removed, but is formed to channel and confine the path of the nail at approximately 45°. PAN minimizes splitting of the flanges while permitting time-saving nailing from a better angle.

See Top Flange tables.

Refer to Joist Manufacturer's literature or appropriate Simpson Connector Selection Guide for actual joist sizes.

Material:ITS, ITT - 18 gauge; MIT, HIT - 16 gauge, ITTM - 12 gauge top flange and 18 gauge stirrup

Finish: Galvanized

Installation:

Allowable Loads: Options:

top Gallery:
  roll over images below to see larger image
 
ITS Typical ITS Installed on LVL The Strong-Grip™ seat secures I-joists in position without joist nails ITT
U.S. Patent 5,555,694
MIT Typical MIT Installed on a Double LVL HIT HIT Installation
on a 3x Nailer mounted on a Steel Beam

top IUT & ITT Installation (VPA Similiar):
  roll over images below to see larger image
 
Step 1
Bend the tab with a hammer.
Step 2
Hammer
10dx1 1/2 nail in at approximately 45°.
Step 3
The tab is now correctly installed.

top ITS Installation Sequence
  roll over images below to see larger image
 
Step 1
Attach the ITS to the header
Step 2
Slide the I-joist downward into the ITS until it rests above the Strong-Grip™ seat.
Step 3
Firmly push or snap I-joist fully into the seat of the ITS.

top Positive Angle Nailing
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Correct Nailing Approx. 45° angle Nail too long Nail at wrong angle
Toe-Nailing
Toe nailing causes squeaks and improper hanger installations. Do not toe nail I-joists before installing top flange or face mount hangers.

top Wood I-Joists:
 

Sloped Joists
For sloped joists up to 1/4:12 there is no reduction. For slopes greater than 1/4:12 see individual product pages or refer to technical bulletin T-SLOPEJST.

Multiple Joists
Multiple joists should be adequately connected together to act as one unit.

Fasteners
Use the correct nails. Wood may split if the nails are too large. Hanger nails into flanges should not exceed 10d common (0.148 dia.), no longer than 1 1/2". Nails into web stiffeners should not exceed 16d commons (0.162 dia.).

Eccentrically-Loaded I-Joists
Supporting a top flange hanger may require bottom flange restraining straps, blocking or directly-applied ceiling systems to prevent rotation at the hanger location.

Skewed Joists
Joists may be skewed up to 2 1/2 degrees in a non-skewed hanger without any load reduction. Refer to individual hanger descriptions for information allowing any further skew applications.

  roll over images below to see larger image
 
I-JOIST AS A HEADER INSTALLATIONS
 
  Face Mount Hanger Top Flange Hanger
 
When face mount hangers are attached to I-joist headers, backer blocks must be installed to provide a nailing surface for the hanger nails. The backer blocks should be installed on both sides of the web and attached together with a minimum of 10-10d nails. The hanger nails should extend through the web. Contact the I-Joist manufacture for additional design considerations.
When top flange hangers are attached to I-joist headers, a backer block must be installed to prevent the top flange from rotating under load. The backer blocks should be installed with a minimum of 10-10d nails clinched. Check with the joist manufacture for additional design considerations.
     
   
 
top IT Series With Various Header Applications:See code report listings below
Table

Also see ITTM Series for concrete and masonry installations.

  1. Uplift loads are based on DF/SP lumber and have been increased 33% and 60% for wind or earthquake loading with no further increase allowed. Divide (133) Load by 1.33 for normal loading such as in cantilever construction. For SPF use 0.86 x DF/SP uplift load.
  2. 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 SPF column.
  3. DF I-joists include flanges made from solid sawn Douglas Fir, LVL made primarily of Douglas Fir/Southern Pine, or LSL. For flanges with thicknesses from 1 5/16 to 1 3/8, use 0.85 of the I-joist header load. For flanges with thicknesses from 1 1/8 to 1 1/4, use 0.75 of the I-joist header load.
  4. Minimum solid header thickness to achieve ITS/ITT table loads is 1 1/2".
  5. SCL, structural composite lumber, is laminated veneer lumber, Parallam® PSL and TimberStrand® LSL.
  6. Code Values are based on DF/SP header species.
  7. I-joists with flanges less than 1 5/16" thick used in combination with hangers thinner than 14 gauge may deflect an additional 1/32" beyond the standard 1/8" limit.
  8. For the ITS alternate installation joist fasteners can be installed for additional load. Web stiffeners required.
Parallam® and TimberStrand® are registered trademarks of Trus Joist, a Weyerhaeuser company.
top Nailer Table:

This table indicates various allowable loads for ITS/ITT/MIT/HIT hangers used on wood nailers. The header nail type must be substituted for those listed in other tables.

NAILS: 16d = 0.162" dia. x 3 1/2" long, 16dx2 1/2= 0.162" dia.x 2 1/2" long, 10d = 0.148" dia. x 3" long, 10dx1 1/2= 0.148" dia. x 1 1/2" long. See other nail sizes and information
Table
  1. These hangers may deflect an additional 1/32" at design load.
  2. Uplift loads are based on DF/SP members only.
top Optional Nailing For Increased Uplift:
Table
  1. Loads are based on Douglas Fir, and have been increased 33% and 60% 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.
top Code Reports (PDFs):
Legacy Reports
  ICC-ES ESR CITY OF LOS ANGELES STATE OF FLORIDA ICC-ES NER ICC-ES ER ICC-ES ES
HITSee specific model numbers for code listings.
HIT318 ESR-2329 / ESR-2523 RR24818 FL474      
HIT320 ESR-2329 / ESR-2523 RR24818 FL474      
HIT322 ESR-2329 / ESR-2523 RR24818 FL474      
HIT324 ESR-2329 / ESR-2523 RR24818 FL474      
HIT326 ESR-2329 / ESR-2523 RR24818 FL474      
HIT3518 ESR-2329 / ESR-2523 RR24818 FL474      
HIT3520 ESR-2329 / ESR-2523 RR24818 FL474      
HIT418 ESR-2329 / ESR-2523 RR24818 FL474      
HIT420 ESR-2329 / ESR-2523 RR24818 FL474      
HIT422 ESR-2329 / ESR-2523 RR24818 FL474      
HIT424 ESR-2329 / ESR-2523 RR24818 FL474      
HIT426 ESR-2329 / ESR-2523 RR24818 FL474      
ITSSee specific model numbers for code listings.
ITS1.81/11.88 ESR-2329 / ESR-2523   FL10002      
ITS1.81/14 ESR-2329 / ESR-2523   FL10002      
ITS1.81/9.5 ESR-2329 / ESR-2523   FL10002      
ITS2.06/11.88 ESR-2329 / ESR-2523   FL10002      
ITS2.06/14 ESR-2329 / ESR-2523   FL10002      
ITS2.06/9.5 ESR-2329 / ESR-2523   FL10002      
ITS2.37/11.88 ESR-2329 / ESR-2523   FL10002      
ITS2.37/14 ESR-2329 / ESR-2523   FL10002      
ITS2.37/9.5 ESR-2329 / ESR-2523   FL10002      
ITS2.56/11.88 ESR-2329 / ESR-2523   FL10002      
ITS2.56/14 ESR-2329 / ESR-2523   FL10002      
ITS2.56/9.5 ESR-2329 / ESR-2523   FL10002      
ITTSee specific model numbers for code listings.
ITT11.88 ESR-2329 / ESR-2523 RR25158 FL474      
ITT14 ESR-2329 / ESR-2523 RR25158 FL474      
ITT16 ESR-2329 / ESR-2523 RR25158 FL474      
ITT2.06/11.88 ESR-2329 / ESR-2523 RR25158 FL474      
ITT2.06/14 ESR-2329 / ESR-2523 RR25158 FL474      
ITT2.06/16 ESR-2329 / ESR-2523 RR25158 FL474      
ITT2.06/9.5 ESR-2329 / ESR-2523 RR25158 FL474      
ITT2.1/11.88 ESR-2329 / ESR-2523 RR25158        
ITT2.1/14 ESR-2329 / ESR-2523 RR25158        
ITT2.1/16 ESR-2329 / ESR-2523 RR25158        
ITT2.1/9.5 ESR-2329 / ESR-2523 RR25158        
ITT211.88 ESR-2329 / ESR-2523 RR25158 FL474      
ITT214 ESR-2329 / ESR-2523 RR25158 FL474      
ITT29.25 ESR-2329 / ESR-2523 RR25158 FL474      
ITT29.5 ESR-2329 / ESR-2523 RR25158 FL474      
ITT311.25 ESR-2329 / ESR-2523 RR25158 FL474      
ITT311.88 ESR-2329 / ESR-2523 RR25158 FL474      
ITT313 ESR-2329 / ESR-2523 RR25158 FL474      
ITT314 ESR-2329 / ESR-2523 RR25158 FL474      
ITT316 ESR-2329 / ESR-2523 RR25158 FL474      
ITT3511.88 ESR-2329 / ESR-2523 RR25158 FL474      
ITT3514 ESR-2329 / ESR-2523 RR25158 FL474      
ITT359.5 ESR-2329 / ESR-2523 RR25158 FL474      
ITT39.25 ESR-2329 / ESR-2523 RR25158 FL474      
ITT39.37 ESR-2329 / ESR-2523 RR25158 FL474      
ITT39.5 ESR-2329 / ESR-2523 RR25158 FL474      
ITT411.25 ESR-2329 / ESR-2523 RR25158 FL474      
ITT411.88 ESR-2329 / ESR-2523 RR25158 FL474      
ITT413 ESR-2329 / ESR-2523 RR25158 FL474      
ITT414 ESR-2329 / ESR-2523 RR25158 FL474      
ITT416 ESR-2329 / ESR-2523 RR25158 FL474      
ITT49.25 ESR-2329 / ESR-2523 RR25158 FL474      
ITT49.37 ESR-2329 / ESR-2523 RR25158 FL474      
ITT49.5 ESR-2329 / ESR-2523 RR25158 FL474      
ITT9.5 ESR-2329 / ESR-2523 RR25158 FL474      
MITSee specific model numbers for code listings.
MIT1.81/14 ESR-2329 / ESR-2523   FL474      
MIT1.81/16 ESR-2329 / ESR-2523   FL474      
MIT11.88 ESR-2329 / ESR-2523   FL474      
MIT211.88 ESR-2329 / ESR-2523   FL474      
MIT211.88-2 ESR-2329 / ESR-2523 RR24949 FL474      
MIT29.5 ESR-2329 / ESR-2523   FL474      
MIT29.5-2 ESR-2329 / ESR-2523 RR24949 FL474      
MIT311.88 No code listing. Please contact us for test data.
MIT311.88-2 ESR-2329 / ESR-2523   FL474      
MIT314 ESR-2329 / ESR-2523 RR24949 FL474      
MIT314-2 ESR-2329 / ESR-2523   FL474      
MIT316 ESR-2329 / ESR-2523 RR24949 FL474      
MIT318 ESR-2329 / ESR-2523 RR24949 FL474      
MIT320 ESR-2329 / ESR-2523 RR24949 FL474      
MIT3511.88 ESR-2329 / ESR-2523 RR24949 FL474      
MIT3511.88-2 ESR-2329 / ESR-2523   FL474      
MIT3514 ESR-2329 / ESR-2523 RR24949 FL474      
MIT3514-2 ESR-2329 / ESR-2523   FL474      
MIT3516 ESR-2329 / ESR-2523 RR24949 FL474      
MIT3518 ESR-2329 / ESR-2523 RR24949 FL474      
MIT3520 ESR-2329 / ESR-2523 RR24949 FL474      
MIT359.5-2 ESR-2329 / ESR-2523   FL474      
MIT39.5-2 ESR-2329 / ESR-2523   FL474      
MIT4.12/11.88 No code listing. Please contact us for test data.
MIT4.12/14 No code listing. Please contact us for test data.
MIT4.12/9.5 No code listing. Please contact us for test data.
MIT4.28/11.88 No code listing. Please contact us for test data.
MIT4.28/14 No code listing. Please contact us for test data.
MIT4.28/9.5 No code listing. Please contact us for test data.
MIT4.75/16 No code listing. Please contact us for test data.
MIT411.88 ESR-2329 / ESR-2523 RR24949 FL474      
MIT414 ESR-2329 / ESR-2523 RR24949 FL474      
MIT416 ESR-2329 / ESR-2523 RR24949 FL474      
MIT418 ESR-2329 / ESR-2523 RR24949 FL474      
MIT420 ESR-2329 / ESR-2523 RR24949 FL474      
MIT49.5 ESR-2329 / ESR-2523 RR24949 FL474      
MIT5.12/16 ESR-2329 / ESR-2523 RR24949 FL474      
MIT9.5 ESR-2329 / ESR-2523 RR24949 FL474      

   
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