Snap Tie Data Sheet
Snap Ties
Ties and brackets, with 3/4” plywood and 2×4 lumber,
create a simple and effective forming system
Job-built forming with 3/4” plywood, 2×4 lumber, Snap
Ties and Jahn-style Brackets is popular on many
construction sites. Though only a few components are
required, time and labor is necessary to plan, mark, cut
and drill the plywood.
Short-end (SE) Snap Ties are available for conditions
with single walers on both sides. Long-end (LE) Snap
Ties are available for conditions with waler/strongbacks
on both sides. Odd-end (OE) Snap Ties are available
for conditions with a single waler on one side and
waler/strongback on the other.
Short-end (SE) Snap Ties measure 4-3/4” at each
end, plus the wall thickness. Long-end (LE) Snap Ties
measure 8-1/4” at each end, plus the wall thickness.
Odd-end (OE) Snap Ties measure 4-3/4” at one end
and 8-1/4” at the other end, plus the wall thickness.
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Fractional tie sizes available on request.
Non-standard end(s) available on request.
Optional metal washer available on request.
Optional hex head available on request.
Every Snap Tie includes two 1” plastic cones. The
plastic cones set the wall dimension and cover the
plywood hole. After the plywood is stripped, the plastic
cone and exposed tie end are removed with a twist.
Water-resistant washer available on request.
* Safe Working Load based on 2:1 safety factor.
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Snap Tie |
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Type |
Wire Size |
SWL * |
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Standard Snap Tie |
.225 |
2,250 lbs |
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Heavy Duty Snap Tie |
.225 |
3,350 lbs• |
2525 Armitage Ave
Melrose Park, IL 60160
708-493-9569
www.surebuilt-usa.com
03/26Snap Tie Spacing Recommendation
Suggested Spacing Diagrams For Snap Tie System
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A 9/16” drill bit is used for drilling the Snap Tie holes
This diagram is based on:
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3/4” plywood thickness, face grain perpendicular to walers
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Standard 16” waler spacing with 2×4 lumber
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Pour pressure of 450 psf with L/360 deflection
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Pour pressure of 750 psf with L/360 deflection with 12” spacing
Recommended Snap Tie
spacing for rate of pour at
4-1/2 feet per hour at 70°
Recommended Snap Tie
spacing for rate of pour at 2
feet per hour at 70°
Recommended Snap Tie
spacing for rate of pour at 2
feet per hour at 70°
Plywood deflection is the limiting factor in the diagrams above. When it
is desired to have reduced deflection or a higher pour rate is required,
the waler spacing should be decreased for the added pressure.Snap Tie Spacing Recommendation
Horizontal tie spacing: 2 ft., Outside Corner (O.C.), Strongback spacing: 6 ft., Outside Corner (O.C.)
4 Ft. Wall Form Corners
*Based on horizontal plywood. (i.e. the face grain
parallel to the walers resulting in the plywood losing
roughly 30% of deflection strength).
Form pressure = 450 PSF
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Filler panels at corners allow gang drilling of all panels.
Log cabin walers with vertical studs are the
most commonly used method for outside corners.
For Walls Over 8 Ft. High
For Walls Over 10 Ft. High
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Install the vertical strongback to full height.
Nail the 2 x 4 to top waler of lower panel.
Attach one waler to vertical strongback with
line clamps at the proper level to engage a row
of ties.
Plywood can then be set in place and easily
secured with a few snap ties and brackets
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For walls over 10 ft. high, consider using double
2 x 4 strongbacks with waler brackets fastened to
every other waler. These provide more secure
alignment and stability.
Place form turnbuckle brace spacing-6 ft. o.c.
Nail to vertical strongback at H/3 from top. Use
on one side only.
