PLEASE NOTE: Our lead time has been temporarily extended to as much as two weeks.

Callout Size

Outside Dimensions

         Rough Opening               (minimum-maximum)      

Free Air

Width

Height

Width

Height

SF

% free

08x10

9.25''

11.25''

6.75'' - 8.5''

8.75'' - 10.5''

0.296

53.2%

08x12

9.25''

13.25''

6.75'' - 8.5''

10.75'' - 12.5''

0.367

55.0%

08x14

9.25''

15.25''

6.75'' - 8.5''

12.75'' - 14.5''

0.438

56.3%

08x16

9.25''

17.25''

6.75'' - 8.5''

14.75'' - 16.5''

0.509

57.3%

08x18

9.25''

19.25''

6.75'' - 8.5''

16.75'' - 18.5''

0.580

58.0%

08x20

9.25''

21.25''

6.75'' - 8.5''

18.75'' - 20.5''

0.651

58.6%

08x22

9.25''

23.25''

6.75'' - 8.5''

20.75'' - 22.5''

0.723

59.1%

08x24

9.25''

25.25''

6.75'' - 8.5''

22.75'' - 24.5''

0.794

59.5%

08x25

9.25''

26.25''

6.75'' - 8.5''

23.75'' - 25.5''

0.829

59.7%

08x26

9.25''

27.25''

6.75'' - 8.5''

24.75'' - 26.5''

0.865

59.9%

08x28

9.25''

29.25''

6.75'' - 8.5''

26.75'' - 28.5''

0.936

60.2%

08x30

9.25''

31.25''

6.75'' - 8.5''

28.75'' - 30.5''

1.007

60.4%

08x32

9.25''

33.25''

6.75'' - 8.5''

30.75'' - 32.5''

1.079

60.7%

08x34

9.25''

35.25''

6.75'' - 8.5''

32.75'' - 34.5''

1.150

60.9%

08x36

9.25''

37.25''

6.75'' - 8.5''

34.75'' - 36.5''

1.221

61.0%

10x08

11.25''

9.25''

8.75'' - 10.5''

6.75'' - 8.5''

0.290

52.3%

10x10

11.25''

11.25''

8.75'' - 10.5''

8.75'' - 10.5''

0.382

55.1%

10x12

11.25''

13.25''

8.75'' - 10.5''

10.75'' - 12.5''

0.474

56.9%

10x14

11.25''

15.25''

8.75'' - 10.5''

12.75'' - 14.5''

0.566

58.3%

10x16

11.25''

17.25''

8.75'' - 10.5''

14.75'' - 16.5''

0.658

59.3%

10x18

11.25''

19.25''

8.75'' - 10.5''

16.75'' - 18.5''

0.750

60.0%

10x20

11.25''

21.25''

8.75'' - 10.5''

18.75'' - 20.5''

0.842

60.7%

10x22

11.25''

23.25''

8.75'' - 10.5''

20.75'' - 22.5''

0.934

61.2%

10x24

11.25''

25.25''

8.75'' - 10.5''

22.75'' - 24.5''

1.026

61.6%

10x25

11.25''

26.25''

8.75'' - 10.5''

23.75'' - 25.5''

1.072

61.8%

10x26

11.25''

27.25''

8.75'' - 10.5''

24.75'' - 26.5''

1.118

61.9%

10x28

11.25''

29.25''

8.75'' - 10.5''

26.75'' - 28.5''

1.211

62.3%

10x30

11.25''

31.25''

8.75'' - 10.5''

28.75'' - 30.5''

1.303

62.5%

10x32

11.25''

33.25''

8.75'' - 10.5''

30.75'' - 32.5''

1.395

62.8%

10x34

11.25''

35.25''

8.75'' - 10.5''

32.75'' - 34.5''

1.487

63.0%

10x36

11.25''

37.25''

8.75'' - 10.5''

34.75'' - 36.5''

1.579

63.1%

12x08

13.25''

9.25''

10.75'' - 12.5''

6.75'' - 8.5''

0.356

53.5%

12x10

13.25''

11.25''

10.75'' - 12.5''

8.75'' - 10.5''

0.469

56.3%

12x12

13.25''

13.25''

10.75'' - 12.5''

10.75'' - 12.5''

0.582

58.2%

12x14

13.25''

15.25''

10.75'' - 12.5''

12.75'' - 14.5''

0.695

59.6%

12x16

13.25''

17.25''

10.75'' - 12.5''

14.75'' - 16.5''

0.808

60.6%

12x18

13.25''

19.25''

10.75'' - 12.5''

16.75'' - 18.5''

0.921

61.4%

12x20

13.25''

21.25''

10.75'' - 12.5''

18.75'' - 20.5''

1.033

62.0%

12x22

13.25''

23.25''

10.75'' - 12.5''

20.75'' - 22.5''

1.146

62.5%

12x24

13.25''

25.25''

10.75'' - 12.5''

22.75'' - 24.5''

1.259

63.0%

12x25

13.25''

26.25''

10.75'' - 12.5''

23.75'' - 25.5''

1.316

63.1%

12x26

13.25''

27.25''

10.75'' - 12.5''

24.75'' - 26.5''

1.372

63.3%

12x28

13.25''

29.25''

10.75'' - 12.5''

26.75'' - 28.5''

1.485

63.6%

12x30

13.25''

31.25''

10.75'' - 12.5''

28.75'' - 30.5''

1.598

63.9%

12x32

13.25''

33.25''

10.75'' - 12.5''

30.75'' - 32.5''

1.711

64.1%

12x34

13.25''

35.25''

10.75'' - 12.5''

32.75'' - 34.5''

1.823

64.4%

12x36

13.25''

37.25''

10.75'' - 12.5''

34.75'' - 36.5''

1.936

64.5%

14x08

15.25''

9.25''

12.75'' - 14.5''

6.75'' - 8.5''

0.422

54.3%

14x10

15.25''

11.25''

12.75'' - 14.5''

8.75'' - 10.5''

0.556

57.2%

14x12

15.25''

13.25''

12.75'' - 14.5''

10.75'' - 12.5''

0.690

59.1%

14x14

15.25''

15.25''

12.75'' - 14.5''

12.75'' - 14.5''

0.823

60.5%

14x16

15.25''

17.25''

12.75'' - 14.5''

14.75'' - 16.5''

0.957

61.5%

14x18

15.25''

19.25''

12.75'' - 14.5''

16.75'' - 18.5''

1.091

62.3%

14x20

15.25''

21.25''

12.75'' - 14.5''

18.75'' - 20.5''

1.224

63.0%

14x22

15.25''

23.25''

12.75'' - 14.5''

20.75'' - 22.5''

1.358

63.5%

14x24

15.25''

25.25''

12.75'' - 14.5''

22.75'' - 24.5''

1.492

63.9%

14x25

15.25''

26.25''

12.75'' - 14.5''

23.75'' - 25.5''

1.559

64.1%

14x26

15.25''

27.25''

12.75'' - 14.5''

24.75'' - 26.5''

1.625

64.3%

14x28

15.25''

29.25''

12.75'' - 14.5''

26.75'' - 28.5''

1.759

64.6%

14x30

15.25''

31.25''

12.75'' - 14.5''

28.75'' - 30.5''

1.893

64.9%

14x32

15.25''

33.25''

12.75'' - 14.5''

30.75'' - 32.5''

2.026

65.1%

14x34

15.25''

35.25''

12.75'' - 14.5''

32.75'' - 34.5''

2.160

65.3%

14x36

15.25''

37.25''

12.75'' - 14.5''

34.75'' - 36.5''

2.294

65.5%

16x08

17.25''

9.25''

14.75'' - 16.5''

6.75'' - 8.5''

0.488

54.9%

16x10

17.25''

11.25''

14.75'' - 16.5''

8.75'' - 10.5''

0.643

57.9%

16x12

17.25''

13.25''

14.75'' - 16.5''

10.75'' - 12.5''

0.797

59.8%

16x14

17.25''

15.25''

14.75'' - 16.5''

12.75'' - 14.5''

0.952

61.2%

16x16

17.25''

17.25''

14.75'' - 16.5''

14.75'' - 16.5''

1.106

62.2%

16x18

17.25''

19.25''

14.75'' - 16.5''

16.75'' - 18.5''

1.261

63.0%

16x20

17.25''

21.25''

14.75'' - 16.5''

18.75'' - 20.5''

1.415

63.7%

16x22

17.25''

23.25''

14.75'' - 16.5''

20.75'' - 22.5''

1.570

64.2%

16x24

17.25''

25.25''

14.75'' - 16.5''

22.75'' - 24.5''

1.724

64.7%

16x25

17.25''

26.25''

14.75'' - 16.5''

23.75'' - 25.5''

1.802

64.9%

16x26

17.25''

27.25''

14.75'' - 16.5''

24.75'' - 26.5''

1.879

65.0%

16x28

17.25''

29.25''

14.75'' - 16.5''

26.75'' - 28.5''

2.033

65.4%

16x30

17.25''

31.25''

14.75'' - 16.5''

28.75'' - 30.5''

2.188

65.6%

16x32

17.25''

33.25''

14.75'' - 16.5''

30.75'' - 32.5''

2.342

65.9%

16x34

17.25''

35.25''

14.75'' - 16.5''

32.75'' - 34.5''

2.497

66.1%

16x36

17.25''

37.25''

14.75'' - 16.5''

34.75'' - 36.5''

2.651

66.3%

18x08

19.25''

9.25''

16.75'' - 18.5''

6.75'' - 8.5''

0.554

55.4%

18x10

19.25''

11.25''

16.75'' - 18.5''

8.75'' - 10.5''

0.730

58.4%

18x12

19.25''

13.25''

16.75'' - 18.5''

10.75'' - 12.5''

0.905

60.3%

18x14

19.25''

15.25''

16.75'' - 18.5''

12.75'' - 14.5''

1.080

61.7%

18x16

19.25''

17.25''

16.75'' - 18.5''

14.75'' - 16.5''

1.256

62.8%

18x18

19.25''

19.25''

16.75'' - 18.5''

16.75'' - 18.5''

1.431

63.6%

18x20

19.25''

21.25''

16.75'' - 18.5''

18.75'' - 20.5''

1.606

64.3%

18x22

19.25''

23.25''

16.75'' - 18.5''

20.75'' - 22.5''

1.782

64.8%

18x24

19.25''

25.25''

16.75'' - 18.5''

22.75'' - 24.5''

1.957

65.2%

18x25

19.25''

26.25''

16.75'' - 18.5''

23.75'' - 25.5''

2.045

65.4%

18x26

19.25''

27.25''

16.75'' - 18.5''

24.75'' - 26.5''

2.132

65.6%

18x28

19.25''

29.25''

16.75'' - 18.5''

26.75'' - 28.5''

2.308

65.9%

18x30

19.25''

31.25''

16.75'' - 18.5''

28.75'' - 30.5''

2.483

66.2%

18x32

19.25''

33.25''

16.75'' - 18.5''

30.75'' - 32.5''

2.658

66.5%

18x34

19.25''

35.25''

16.75'' - 18.5''

32.75'' - 34.5''

2.834

66.7%

18x36

19.25''

37.25''

16.75'' - 18.5''

34.75'' - 36.5''

3.009

66.9%

20x08

21.25''

9.25''

18.75'' - 20.5''

6.75'' - 8.5''

0.620

55.8%

20x10

21.25''

11.25''

18.75'' - 20.5''

8.75'' - 10.5''

0.816

58.8%

20x12

21.25''

13.25''

18.75'' - 20.5''

10.75'' - 12.5''

1.013

60.8%

20x14

21.25''

15.25''

18.75'' - 20.5''

12.75'' - 14.5''

1.209

62.2%

20x16

21.25''

17.25''

18.75'' - 20.5''

14.75'' - 16.5''

1.405

63.2%

20x18

21.25''

19.25''

18.75'' - 20.5''

16.75'' - 18.5''

1.601

64.0%

20x20

21.25''

21.25''

18.75'' - 20.5''

18.75'' - 20.5''

1.797

64.7%

20x22

21.25''

23.25''

18.75'' - 20.5''

20.75'' - 22.5''

1.993

65.2%

20x24

21.25''

25.25''

18.75'' - 20.5''

22.75'' - 24.5''

2.190

65.7%

20x25

21.25''

26.25''

18.75'' - 20.5''

23.75'' - 25.5''

2.288

65.9%

20x26

21.25''

27.25''

18.75'' - 20.5''

24.75'' - 26.5''

2.386

66.1%

20x28

21.25''

29.25''

18.75'' - 20.5''

26.75'' - 28.5''

2.582

66.4%

20x30

21.25''

31.25''

18.75'' - 20.5''

28.75'' - 30.5''

2.778

66.7%

20x32

21.25''

33.25''

18.75'' - 20.5''

30.75'' - 32.5''

2.974

66.9%

20x34

21.25''

35.25''

18.75'' - 20.5''

32.75'' - 34.5''

3.171

67.1%

20x36

21.25''

37.25''

18.75'' - 20.5''

34.75'' - 36.5''

3.367

67.3%



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