Tapered Round Poly-Classic Column Specs

Nominal Shaft Diameter†	Optional Attic Base
	Plinth		Round
	A	B	C	D	E	F	B-F
8"	10-7/8"	1-7/8"	1-1/8"	7/8"	3/4'	1/2"	5-1/8"
10"	13-1/2"	2-3/8"	1-1/4"	1-1/8"	7/8"	5/8"	6-1/4"
12"	16-1/8"	2-3/4"	1-1/2"	1-3/8"	1"	5/8"	7-1/4"
14"	18-1/2"	3-5/16"	1-3/4"	1-21/32"	1-1/4"	1-1/16"	8-21/32"
16"	21-3/16"	3-3/4"	2-7/32"	1-7/8"	1-15/32"	1-3/16"	10-1/8"
18"	23-15/16"	4-7/32"	2-11/32"	2 -1/8"	1-7/16"	1-1/8"	11-1/4"
20"	27-1/16"	4-3/4"	2-11/16"	2-3/8"	1-3/4'	1-7/16"	13"
24"	32-1/2"	5-3/4"	3-5/16"	2-13/16"	2-1/8"	1-3/4"	15-3/4"

Round Tapered Shaft

Tuscan Base

Shaft Profile

Tuscan Cap

Outside Diameter*

Inside Diameter**

Plinth

Torus

Total

Astragal

Echinus

Abacus

Total

Bottom

Top

Bottom

Top

A

B

C

D

B-D

E

F

G

H

I

J

6"

4 3/4

4 3/4

3 3/4

7 31/32

1 1/2

1 1/4

15/32

3 7/32

1/2

31/32

31/32

1 1/16

7 1/2

2 1/32

8"

6 1/2

6 3/4

5 1/2

10 7/8

1 7/8

1 3/4

5/8

4 1/4

1/2

1 3/4

1 5/16

1 3/8

9 7/8

2 11/16

10"

8 1/2

8 3/8

7 3/4

13 1/2

2 3/8

2 1/8

3/4

5 1/4

3/4

1 5/8

1 13/16

1 3/4

12 5/32

3 9/16

12"

10

10 3/4

9 1/4

16 1/4

2 3/4

2 3/8

7/8

6

3/4

1 3/32

1 29/32

2

14 5/8

3 29/32

14"

12

11 1/2

10 1/2

18 19/32

3 11/32

2 31/32

1

7 5/16

1

2 9/32

2 15/32

2 5/16

16 31/32

4 25/32

16"

13 1/2

13 1/2

12

21 5/16

3 27/32

3 11/32

1 1/8

8 5/16

1

2 1/4

2 23/32

2 23/32

19 3/32

5 7/16

18"

15

15

12 3/4

24 1/32

4 7/32

3 31/32

1 3/8

9 9/16

1

2 1/4

2 31/32

2 31/32

21 5/16

5 15/16

20"

17

18

14 7/8

27

4 3/4

4 1/16

1 3/4

10 9/16

1 5/16

2 3/4

3 1/8

3 7/16

24 1/4

6 9/16

24"

20

22

18

32 1/2

5 3/4

5 1/4

2 1/4

13 1/4

1 5/8

4 3/4

3 3/16

4 1/8

28 3/4

7 5/16

* Actual outside diameters are approximately 5/16" to 1/2" less than shown.

** Actual inside diameters my vary by 3/8"

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