Testing

In 1970 Portland Stone Ware began fabricating the Portland concrete filled column. After being approved by ICC-Evaluation Service Inc. in 1993, the 16 gauge Portland Columns and caps have been code compliant. Portland Columns have undergone a physical plant inspection and certification annually by an independent auditor hired by ICC-Evaluation Services. It is important to us to comply with ICC and BOCA regulations each year. The value of having third party testing is to guarantee the quality of our products. Portland Columns have been ICC-ES code compliant for more than 23 years.

Please note, Portland Columns strength is listed below in table 1 from our ICC-ES Legacy Report No. 93-36-02. The unit of measure is in kips which is a unit of force used by architects and engineers to measure engineering loads. One kip is about 1000 pounds.

Resources To Guide You

ICC-ES Legacy Report

2017 Inspection Report

2019 Inspection Report

2020 Inspection Report

2021 Inspection Report

2022 Inspection Report

2023 Inspection Report

2024 Inspection Report

Column Length (in feet)	Design Compressive 3 1/2-Inch Column	Strength (In KIPS) 4-Inch Column
Table 1 (from ICC-ES Legacy Report No. 93-36.02) 3 1/2-INCH and 4-INCH PORTLAND COLUMN DESIGN COMPRESSIVE STRENGTH¹
6.0	25.1	33.3
6.5	23.6	31.8
7.0	22.2	30.3
7.5	20.7	28.8
8.0	19.3	27.2
8.5	17.8	25.7
9.0	16.4	24.1
9.5	15.1	22.6
10.0	13.8	21.0
11.0	11.3	18.1
12.0	9.1	15.3
13.0	N.D.	12.8
14.0	N.D.	10.6

Notes to Table 1:

1. The compressive strength of the columns given above are based on factored load design. These values shall be used to determine the columns ability to resist the design loads given in the BOCA National Building Code/1999, when multiplied by the factors given in the AISC Load and Resistance Factor Design Specifications for Structural Steel Building, 1998 edition.

2. N.D. = Not Determined

Portland Columns are fabricated and distributed by Portland Stone Ware Co.

Testing

Resources To Guide You

Table 1 (from ICC-ES Legacy Report No. 93-36.02)

3 1/2-INCH and 4-INCH PORTLAND COLUMN DESIGN COMPRESSIVE STRENGTH¹

Notes to Table 1:

Portland Column Components

Portland Column

Column Plates

Testing

Custom Columns

Table 1 (from ICC-ES Legacy Report No. 93-36.02)

3 1/2-INCH and 4-INCH PORTLAND COLUMN DESIGN COMPRESSIVE STRENGTH1

Notes to Table 1:

Portland Column Components

Portland Column

Column Plates

Testing

Custom Columns

3 1/2-INCH and 4-INCH PORTLAND COLUMN DESIGN COMPRESSIVE STRENGTH¹