Product Data Sheet Show all documents

SQUARE FOOT

The SQUARE FOOT is a uniquely designed, concrete footing form for residential, commercial and industrial use. The exclusive, patented, square shape resists uplift, tipping and tilting. The larger square footprint provides greater bearing capacity. Load is distributed over more surface area for increased stability. The SQUARE FOOT footing form fits all brands of construction tubes.

  • Simple to install; user friendly
  • Saves time and money
  • Building code approved
  • Stronger by design; flexible design
  • 6" (15 cm) minimum thickness base produces a thicker footing; a thicker footing is a stronger footing
  • Footing and column are poured as a monolithic structure; time waiting for the footing to set before pouring the column is eliminated
  • Square shape and tie holes easily accommodate rebar which increases the foundation strength required on any project
  • 4 structural points of contact with the ground make leveling easier; leveling a square is much easier than leveling a circle
  • Excavation, backfill and concrete pouring can all occur in one day; results in a 3 hour process vs. a 3 day process
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Product Data Sheet Show all documents

Usage

Residential applications: decks, porches, seasonal rooms, sheds, play structures, posts, etc.

Advantages

  • Simple to install; user friendly
  • Saves time and money
  • Building code approved
  • Stronger by design; flexible design
  • 6" (15 cm) minimum thickness base produces a thicker footing; a thicker footing is a stronger footing
  • Footing and column are poured as a monolithic structure; time waiting for the footing to set before pouring the column is eliminated
  • Square shape and tie holes easily accommodate rebar which increases the foundation strength required on any project
  • 4 structural points of contact with the ground make leveling easier; leveling a square is much easier than leveling a circle
  • Excavation, backfill and concrete pouring can all occur in one day; results in a 3 hour process vs. a 3 day process

Packaging

SF-22

22" (56 cm) with Flange 23.5" (60 cm)

Fits 8" and 10" tubes

SF-28

28" (70 cm) with Flange 30" (76 cm)

Fits 8", 10" and 12" tubes

SF-32

32" (81 cm) with Flange 34.5" (88 cm)

Fits 12", 14", 16" and 18" tubes

Documents

FAQ

What are the common commercial uses for Square Foot tubes?

Commercial applications: signage, marine (docks, boat houses, moorings), concrete and aggregate wall systems, exterior storage units, electrical towers, green houses, oil/ gas pipelines, water towers, house additions, pole barns, gazebos, flag and lamp poles, benches, bus stops, carports, lally columns, sculptures, and statues, etc.

How does the square design of the Square Foot facilitate the insertion of rebar?

Square shape and tie holes easily accommodate rebar which increases the foundation strength required on any project

What are the common residential uses for Square Foot tubes?

Residential applications: decks, porches, seasonal rooms, sheds, play structures, posts, etc.

What is the minimum base thickness of each SQUARE FOOT?

15 cm (6 in) minimum thickness base produces a thicker footing; a thicker footing is a stronger footing.

What are the different types of projects for which each type of Square Foot is recommended?
  • SF-22: Ideal for residential and light commercial projects
  • SF-28: Ideal for residential and commercial projects
  • SF-32: Ideal for residential, commercial, and industrial projects

What are the Square Foot application steps?

1. Obtain SQUARE FOOT and construction tube.
2. Cut-off excess plastic at top of wedges, to desired construction tube size.
3. Saw construction tube to desired length.
4. Attach construction tube to SQUARE FOOT footing form with a minimum of four 1 in (2.5 cm) screws.
5. Excavate hole to a depth to avoid frost penetration under pier; typically, 5 ft (1.5 m).
6. Place SQUARE FOOT and construction tube on undisturbed soil, or 4 in (10 cm) – 6 in (15 cm) of compacted crushed stone or gravel.
7. Place SQUARE FOOT footing form at desired location.
8. Level/plumb the construction tube/SQUARE FOOT footing form prior to backfilling.
9. Construction tube and SQUARE FOOT footing form, combined, cannot extend 36 in (91 cm) or more above the ground line/grade without being braced.
10. Backfill using a shovel or backhoe.
11. Backfill making sure construction tube remains level/ plumbed at desired location.
12. Invert spare SQUARE FOOT on top of construction tube to act as a funnel prior to concrete pour.
13. Pour concrete in the top of inverted SQUARE FOOT.
14. Remove the funnel and spray SQUARE FOOT off. Trowel concrete.
15. Install anchor bolt to accept bracket as required.

What is the yield of the SQUARE FOOT?

*Yields are approximate; do not under-order. Concrete must have a minimum of 20.7 MPa (3000 psi), at 28 days, compressive strength and consist of no larger than 19 mm (3/4 in) aggregate. Recommended slump is 127 mm (5 in) to 152 mm (6 in)

  • SF-22 56 cm (22 in) with Flange 60 cm (23.5 in) Fits 8 in and 10 in tubes
  • SF-28 70 cm (28 in) with Flange 76 cm (30") Fits 8 in, 10 in and 12 in tubes
  • SF-32 80 cm (32 in) with Flange 88 cm (34.5 in) Fits 12 in, 14 in, 16 in and 18 in tubes

Model Concrete Yield *  66 lb (30 kg) Bags
SF-22 2,0 ft3 (0,06 m3) 4
SF-28 4,5 ft3 (0,13 m3) 9
SF-32 7,0 ft3 (0,20 m3) 13
In what types of industrial projects can Square Foot tubes be used?

Industrial applications: foundation to support solar power arrays and small-scale wind turbines.