Technical Documents

Browse our collection of technical specifications, code details, and diagrams

Product Data Sheets

Measurements and specs for each footing form

Technical Specifications

Above Grade/Ground Installation
SF 22Data SheetCSI SpecsDrawing: PDF | DWG | DWF
SF 28Data SheetCSI SpecsDrawing: PDF | DWG | DWF
SF 32Data SheetCSI SpecsDrawing: PDF | DWG | DWF
Below Grade/Ground Installation
SF 22Data SheetCSI SpecsDrawing: PDF | DWG | DWF
SF 28Data SheetCSI SpecsDrawing: PDF | DWG | DWF
SF 32Data SheetCSI SpecsDrawing: PDF | DWG | DWF
Bracing Installation
SF 22Data SheetCSI SpecsDrawing: PDF | DWG | DWF
SF 28Data SheetCSI SpecsDrawing: PDF | DWG | DWF
SF 32Data SheetCSI SpecsDrawing: PDF | DWG | DWF

Bearing Capacity Table

This table lists the Presumptive Load Bearing Values Of Foundation Materials for Models SF 22, SF 28, SF 32

Soil DescriptionAllowable Soil
Bearing Pressure
psf(kPa)
SF 22
Allowable Load
lbs (kN)
SF 28
Allowable Load
lbs (kN)
SF 32
Allowable Load
lbs (kN)
Soft clay1,000 psf
(47.88)
3,360
(14.9)
5,440
(24.0)
7,100
(31.6)
Clay, sandy clay, silty
clay, and clayey silt
2,000 psf
(95.76)
6,720
(29.9)
10,880
(48.4)
14,200
(63.1)
Sand, silty sand, clayey
sand, silty gravel, and
clayey gravel
3,000 psf
(143.64)
10,000
(44.5)
16,320
(72.6)
21,300
(94.7)
Sandy gravel or gravel5,000 psf
(239.40)
16,800
(74.7)
27,200
(121.0)
35,500
(157.8)
Sedimentary rock6,000 psf
(287.28)
20,000
(88.9)
42,600
(189.4)
42,600
(189.4)
Crystalline bedrock12,000 psf
(574.56)
40,300
(179.2)
65,280
(290.4)
85,200
(378.8)

The allowable loads shown conform to BOCA National Building Code, 1996 Section 1804.3

Concrete

Do no under-order, open our Concrete Calculator. Concrete shall have a minimum of 3000psi 28 day compressive strength and consist of not more than 3/4 inch (1.91 cm) aggregate. Recommended slump of 5" (12.7 cm) to 6" (15.24 cm).

Additional Resources

Allowable Loads (officially stamped)

Full CSI product guide specifications

 Rebar guidance

Frost depths map

Product Testing and Evaluation

ICC-ES

SquareFoot™ has ICC-ES Approval

Sound Footings LLC has received confirmation from ICC Evaluation Service, Inc (ICC-ES) that SquareFoot™ is the first and only (6/2006) plastic footing form to comply with the provisions of the EVALUATION GUIDELINE FOR PLASTIC FOOTING FORMS EG292 and SquareFoot™ complies with the following codes; Division 2: Site Construction; Section 02450 - Foundation and Load Bearing Elements and Division 3 - Concrete; 03130 - Permanent Forms. This confirmation, as evidenced in ICC-ES evaluation report ESR-1131, provides guidance to code officials faced with approving the use of SquareFoot™ under these codes. The evaluation report is available here: ICC ESR Report # 1131.

Additional Help

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