Guide
Product Guide MiTek Building Materials

MiTek MSH Adjustable Height / Field Slope and Skew Hangers

MiTek’s MSH series hangers solve the headache every framer knows — when standard connectors won’t work because nothing’s quite level, plumb, or at the right angle. These field-adjustable hangers let contractors modify height, slope, and skew right on the jobsite, handling everything from simple floor trusses to complex vaulted roofs without ordering custom hardware.

The MSH line shines brightest when contractors face the unexpected. Got a ridge beam that’s not quite where the plans showed? Need to connect trusses at odd angles because the foundation crew was having a Monday? These hangers adjust on-site for height variations and slopes from 0° to 45°. That flexibility matters in Montana where getting custom connectors means waiting days or weeks for delivery to remote jobsites.

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Field Adjustability Features

The defining feature of MSH hangers is field adjustability — they allow on-site height and slope adjustment. This isn’t marketing fluff. The open back design means installation after the truss or joist member has been placed in position. No pre-planning every connection. No removing members because the hanger won’t fit.

Flanges work for top mount, face mount, or combination installations. That versatility beats single-purpose hangers that only mount one way. The system supports Face-Max, Top-Max, Top-Min, and Combination mounting — technical speak for “it’ll work however you need to attach it.”

For top-mount installations, straps must be field-bent over the header a minimum of 2 inches. Simple enough that any framer can handle it with basic tools. No special bending jigs or factory pre-forms needed.

The real payoff comes with complex connections. These hangers accommodate slopes and skews from 0° to 45°, covering most roof pitches contractors encounter. Factory skewed models support skews from 2.5 to 75 degrees for extreme angles.

Load Capacity & Mounting Versatility

Load ratings tell the story contractors care about. Typical DF/SP allowable loads range from 1,350 lbs to over 4,000 lbs depending on the model and fastener pattern. Those numbers work for real-world framing, not just theoretical calculations.

Some models feature double shear nail design for faster installation with fewer nails. Less hammering means faster framing. The math is simple — fewer fasteners equals more square footage framed per day.

Common models serve different needs:

ModelDimensionsGaugeCompatible SizeWeight
MSH23222-3/8” W x 22-5/8” H x 1-3/4” D18 ga2-3/8” lumber/truss1.4 lbs
MSH4223-9/16” W x 22” H x 1-7/8” D16 ga3-1/2” (4x2) floor trussesNot specified

Fasteners typically include 10d (0.148” x 3”) or 16d (0.162” x 3.5”) nails for carrying members and 10d x 1-1/2” for carried members. Standard nails that every framer carries — no special fasteners to track down.

Applications span the full range of framing work:

  • Truss-to-truss connections in roof and floor systems
  • Attaching floor trusses to supporting girders or joists
  • Support for 2-ply 1-3/4” LVL members (specifically MSH422 models)
  • Engineered wood joist installations (when used with required web stiffeners)
  • Solid-sawn and structural composite lumber headers

Web stiffeners are mandatory for engineered wood joist installations — no shortcuts allowed. That requirement protects the thin webs from crushing under load.

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Material Specs & Code Compliance

Build quality starts with materials. Steel construction ranges from 14 to 18 gauge, matching loads to metal thickness. Heavier gauge for heavier loads — engineering that makes sense.

Standard finish is G90 galvanizing (hot-dip galvanized) for most applications. Optional Stainless Steel or Gold Coat available for coastal or treated lumber applications. Non-treated lumber works with standard G90; treated lumber requires higher corrosion resistance (Stainless Steel).

Code compliance matters for inspections:

  • ICC-ES ESR-3444
  • Florida Building Code FL17241
  • LA City RR 25749
  • Meets IBC (International Building Code) and IRC (International Residential Code) standards

Use all specified fasteners as per load tables — partial nailing voids the ratings. Every hole needs a fastener for the numbers to work.

Compatible with 2x lumber, 4x lumber, Floor Trusses, Roof Trusses, LVL, LSL, PSL, and engineered wood joists. That coverage handles 95% of residential framing members.

MiTek MSH competes directly with Simpson Strong-Tie THAI Series (e.g., THAI3522), offering similar field adjustability and load ratings. Having alternatives keeps pricing competitive and availability steady when one brand runs short.

MiTek warrants products to be free from material defects in manufacture and design, though duration isn’t explicitly stated. Products must be properly installed and maintained within design limitations. The warranty doesn’t cover deterioration from environmental conditions or misuse/modification.

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FAQ

What makes MSH hangers different from standard joist hangers?

Field adjustability sets them apart. MSH hangers allow on-site height and slope adjustment, while standard hangers lock you into fixed dimensions. The open back design allows installation after the truss or joist member has been placed — impossible with closed-back hangers.

Can these hangers handle Montana snow loads?

Typical DF/SP allowable loads range from 1,350 lbs to over 4,000 lbs. Those capacities work for Montana’s 30 psf minimum snow load when properly sized. Always check MSU’s snow load tool for site-specific requirements and size accordingly.

Are special tools needed for installation?

No. Standard framing hammers and 10d or 16d nails handle most installations. Top-mount installations require field-bending straps over the header a minimum of 2 inches — basic hand tools work fine.

What about using these with treated lumber?

Non-treated lumber works with standard G90 galvanizing; treated lumber requires higher corrosion resistance like Stainless Steel. Don’t use standard galvanized hangers with ACQ-treated lumber unless you enjoy replacing corroded hardware.

How do they compare to Simpson Strong-Tie options?

MiTek MSH is a direct competitor to Simpson’s THAI series, offering similar field adjustability and load ratings. Both brands meet code requirements. Choice often comes down to local availability and contractor preference.

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