Square Foot® gives concrete footings increased stability, greater bearing capacity, high tensile strength and more.
What is Square Foot®?
It's plastic -- it's bright orange -- it's square. It's a concrete footing form that's revolutionizing the way do-it-yourselfers and contractors construct their footings. Remember when you could expect three days just to get your footings in? Those days are gone. You can install your footings in just one to three hours when you use Square Foot®.
How does Square
Foot® work?
The Square Foot® has a square base
that tapers up to a conical shape that allows for Sonotube® brand forms and other standard fiber construction tube forms to be attached to the top of the footing
form. The footing form has a uniform height, each model with
a different number of flanges at the top to accommodate the
different sized construction tubes. The construction tube is
attached to the conical section of the footing form using four
3/4“- 1“(1.9cm - 2.54cm) wood screws. It is then set
into the ground on undisturbed soil or 4“- 6“(10.16cm
- 15.24cm) compacted crushed stone. The footing form is then
plumbed, backfilled and is filled with concrete making a monolithic
pier and footing unit. The construction tube and plastic footing
form remain in place after the concrete is cured Quick
Installation Instructions, Installation Video.
Square Foot® Product Models
- SF22 is designed to work in conjunction with 8“ and 10“ construction tubes (6 flanges).
View SF22 Product
Spec
- SF28 is designed to work in conjunction with 8“, 10“ and 12“ construction tubes (9 flanges).
View SF28 Product
Spec
- SF32 is designed to work in conjunction with 12“, 14“, 16“ and 18“ construction tubes (5 flanges).
View SF32 Product Spec

Top Reasons why Square Foot® is the Best!
Product Guide Specifications
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Square Foot vs. Conventional Method
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Installation Video