Use and Care Manual

Holdowns
73
Copyright © 2020 MiTek Industries, Inc. All Rights Reserved
Holdowns
MiTek
®
Product Catalog
TA Foundation Straps
Foundation Straps offer an economical, one-piece method of achieving
a continuous load path from a 2 x 8 or 2 x 14 dimensional rim joist through
concrete block to foundation. All models require a 6" embedment into
concrete footings.
Materials: 12 gauge
Finish: G90 galvanizing
Options: See chart for Corrosion Finish Options
Installation:
• Use all specied fasteners. See Product Notes, page 18.
• Allowable loads are based on either nail fastening or bolt fastening;
nail and bolt values cannot be combined.
• Install by inserting product into footing’s wet concrete. All models require
a 6" embedment into concrete foundations. Courses of concrete block
must be laid over connector. Notch mudsill at connector locations. Wrap
strap over rim joist and fasten.
• Do not rely on these straps to secure concrete sections together between
cold joints; take other measures to transfer the load. If there is a cold joint
between block and foundation, the minimum embedment must be made
into the foundation.
• Based on product embedment the exposed number of fastener holes may
be reduced. Using fewer fasteners will reduce allowable loads. Reduce
allowable loads by the code prescribed allowable load per fastener, for
each fastener not installed.
• Allowable loads are based on a minimum concrete compressive strength
of 2,500 psi at 28 days.
Typical TA rim joist to
foundation installation
6" min.
2 x 10
rim joist
Uplift
2
Uplift
2
Uplift
2
Uplift
2
W L L1 Qty Type 160% Qty Type 160% Qty Type 160% Qty Type 160%
2 1/2 1340 3 1/2 1950 4 1/2 2475 5 1/2 3230
8 16d x 2-1/2 1905 10 16d x 2-1/2 2385 14 16d x 2-1/2 3230 16 16d x 2-1/2 3230
2 1/2 1340 3 1/2 1950 4 1/2 2475 5 1/2 3230
8 16d x 2-1/2 1905 10 16d x 2-1/2 2385 14 16d x 2-1/2 3230 16 16d x 2-1/2 3230
1) Bolt values are for 3" thick rim joist loaded perpendicular to grain.
2) Uplift loads have been increased 60% for wind and seismic loads; no further increase shall be permitted.
3) Minimum of (9) 16d nails per strap is required to meet IRC R 404.1.5.
4)
NAILS:
16d x 2-1/2 nails are 0.162" dia. x 2-1/2" long.
TA71 PA68 2-1/16 68-1/4 22-1/8
TA51 PA51 2-1/16 48-1/4 17-5/8
--
Corrosion
Finish
Code
Ref.
DF/SP Allowable Loads (Lbs.)Dimensions (in)
2 x 142 x 8 2 x 10 2 x 12
Fastener
Schedule
1,4
MiTek USP
Stock No. Ref. No.
Fastener
Schedule
1,4
Fastener
Schedule
1,4
Fastener
Schedule
1,4
TA
Corrosion Finish
Stainless Steel Gold Coat
HDG Triple Zinc
Corrosion Finish Stainless Steel Gold Coat HDG Triple Zinc
Corrosion
Finish
Stainless Steel
Gold Coat
HDG
Triple Zinc
L
L1
W
2-1/4"