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MAS style mudsill anchors are easy to install for both the concrete and framing contractor. They are suitable for either stemwall or slab foundations and easily mount on the forms before the pour, simplifying finishing and reducing anchor mislocation problems. The MAS eliminates the need to drill the mudsill and can be installed three different ways to provide flexibility when stud placement or sheathing becomes an issue (see table below).

The new and improved MASA/P provides the installation advantages of mudsill anchors combined with the maximum allowable on-center spacing. The new stronger design provides parallel-to-wall load carrying capacity that meets or exceeds most cast-in-place anchors. This allows for a one-to-one replacement of 1/2" bolts on 2x or 3x sills and 5/8" bolts on a 2x sill.

The different models of mudsill anchors are designed for specific applications:

MAS/MASA - installed at the top of the form
MASP/MASAP - for panelized forms
MASB - used in concrete masonry units.

Material: 16 gauge

Finish: Galvanized, all available in ZMAX® coating. See Corrosion Information.

Installation:

• Use all specified fasteners. See General Notes.
• MAS/MASP/MASA/MASAP
  - Concrete shall have a minimum f'_c = 2500 psi.
  - Spalling - Full published capacity is achieved so long as a maximum height of 1 1/4" and a maximum depth of 7/8" is not exceeded. Any exposed portion of the mudsill anchor must be protected against possible corrosion.
  - For prescriptive anchor spacing refer to table.
  - Testing shows that these mudsill anchors can be used in lieu of code required anchor bolts in high seismic zones. (Refer to technical bulletin T-MASSW for additional information.
• MASB - Fill CMU cell with concrete grout first, then place MASB into the grouted cell and adjust into position. Attach mudsill to anchor only after the concrete grout cures.
  - CMU shall have a minimum f'_m = 1500 psi.
  - The MASB Mudsill Anchors were tested in standard 8" CMU.