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Fiberglass Column Dimensions & Load Bearing Data (Round)

Round Smooth Tapered Fiberglass Column Data

Column Diameter
Nominal Diameter (bottom)
A
Nominal Diameter (top)
B
Available Lengths (ft)
C
Cut at Bead Loss
D
Max Encaseable (round)
Max Encaseable (square)
Max Load (lbs)

6"

6"

4-3/4"

9

 4-1/4"

3-1/2"

2-3/8"

8,000

8"

7-1/2"

6-3/8"

10

4-5/16" 

5-1/8"

3-1/2"

10,000

12"

11-1/2"

9-11/16"

10, 12, 14, 16, 18

6-1/4” 

8-7/16"

5-7/8"

18,000

14"

13-1/2"

11-1/2"

8, 9, 10, 12

(more below)

7-1/2″ 

10"

7"

20,000

14"

13-7/8"

11-7/8"

14, 16, 18, 20, 22

 6-3/4”

10"

7"

20,000

16"

15-5/8"

13-1/2"

8, 10, 12, 14

(more below)

 8″

11-3/4"

8-1/4"

20,000

16"

15-7/8"

13-1/4"

16, 18, 20

7-1/2” 

11-3/4"

8-1/4"

20,000

18"

17-11/16"

14-7/8"

8, 10, 12, 14, 16, 18, 20, 22

 8-7/8”

13-3/8"

9-3/8"

20,000

20"

19-3/4"

17"

12, 14, 16, 18, 20, 22

9-7/16” 

15-1/2"

10-7/8"

20,000

22"

21-7/8"

18-1/4"

16, 18, 20

11-3/16” 

16-7/8"

11-7/8"

20,000

24"

23-1/2"

19-3/4"

14, 16, 18, 20, 22, 24

 12-3/8”

18"

12-5/8"

20,000

28"

27-5/8"

23"

20, 22

12-3/4” 

21-1/4"

15"

20,000

 

 

Round Smooth Non-Tapered Fiberglass Column Data

Column Diameter
Nominal Diameter

A

Available Lengths (ft)

B

Max Encaseable (round)
Max Encaseable (square)
Max Load (lbs)
8" 7-5/8" 6, 9, 10 6-3/8" 4-1/2" 10,000
10" 9-5/8" 6, 8, 9, 10, 12 8-3/8" 5-7/8" 14,000
12" 11-5/8" 6, 8, 9, 10, 12 10-3/8" 7-1/4" 18,000
14" 13-5/8" 6, 8, 9, 10, 12, 14 12-1/8" 8-1/2" 20,000
16" 15-5/8" 6, 8, 9, 10, 12, 14, 16, 18, 20 14-1/8" 9-7/8" 20,000
18" 17-5/8" 6, 8, 9, 10, 12, 14, 16, 18 15-7/8" 11-1/8" 20,000

 

 

Round Fluted Tapered Fiberglass Column Data

Column Diameter

Nominal Diameter (bottom)

A

Nominal Diameter (top)

B

Available Lengths (ft)

C

Cut at Bead Loss

D

Max Encaseable (round) Max Encaseable (square) Max Load (lbs)
8" 7-1/2" 6-3/8" 8, 9, 10  4" 4-7/8"  3-15/32" 10,000 
8" 8" 7" 8 5-1/2″  5-1/2"  3-7/8" 10,000
8" 7-5/8" 6-5/8" 8, 9, 10 4-1/4"  5-1/8"  3-5/8"  10,000 
10" 9-1/2" 8-5/16" 8, 9, 10, 12 5"  6-9/16"   4-5/6" 14,000
10" 10-1/8" 9-1/4" 8 6"  7-1/2"  5-5/16"    14,000
10" 10-1/16" 9" 8, 9 5-7/8″  7-1/4"  5-5/8"   14,000
10" 9-1/4" 8-1/2" 8, 9, 10, 12  5-1/2″  6-3/4" 4-25/32"   14,000
12" 11-1/2" 9-11/16" 8, 9, 10, 12  6" 7-11/16"  5-7/16"   18,000
12" 12-1/16" 10-1/8" 8 5-3/4″  8-5/8"  6-3/32"  18,000
12" 12" 10-1/16" 8, 9 5-3/8″  8-5/16"  5-7/8"   18,000
12" 11-5/8" 10" 8, 9, 10, 12  5-1/4" 8"  5-21/32"   18,000
14" 13-5/8" 11-3/4" 8, 10, 12 7-1/2″  9-3/4"  6-7/8"   20,000 
16" 15-5/8" 13-7/16" 8, 10  8" 11-7/16"  8-3/32"    20,000 
16" 15-7/8" 13-1/2" 8, 10 7-3/4″  11-1/2"  8-1/8"    20,000