Bay/ Bow Window Projection Charts

Bay Window Projection Chart

Opening Width

Minimum Proj.

Maximum Proj.

Opening Width

Minimum Proj.

Maximum Proj.

Opening Width

Minimum Proj.

Maximum Proj.

Opening Width

Minimum Proj.

Maximum Proj.

48

6 3/4"

11 3/4"

73

10 3/8"

17 7/8"

9813

7/8"

24"

123

17 3/8"

30 1/8"

49

6 7/8"

12"

74

10 1/2"

18 1/8"

99

14"

24 1/4"

124

17 1/2"

30 3/8"

50

7 1/8"

12 1/4"

75

10 5/8"

18 3/8"

100

14 1/8"

24 1/2"

125

17 5/8"

30 5/8"

51

7 1/4"

12 1/2"

76

10 3/4"

18 5/8"

101

14 1/4"

24 3/4"

126

17 7/8"

30 7/8"

52

7 3/8"

12 3/4"

77

10 7/8"

18 7/8"

102

14_3/8"

25"

127

18"

31 1/8"

53

7 1/2"

13"

78

11"

19 1/8"

103

14 1/2"

25 1/4"

128

18 1/8"

31 3/8"

54

7 5/8"

13 1/4"

79

11 1/8"

19 3/8"

104

14 3/4"

25 1/2"

129

18 1/4"

31 5/8"

55

7 3/4"

13 1/2"

80

11 1/4"

19 5/8"

105

14 7/8"

25 3/4"

130

18 3/8"

31 718"

56

7 7/8"

13 3/4"

81

11 1/2"

19 7/8"

106

15"

26"

131

18 1/2"

32 1/8"

57

8"

14"

82

11 5/8"

20 1/8"

107

15 1/8"

26 114"

132

18 5/8"

32 3/8"

58

8 1/4"

14 1/4"

83

11 3/4"

20 3/8"

108

15 1/4"

26 1/2"

133

18 3/4"

32 5/8"

59

8 3/8"

14 3/8"

84

11 7/8"

20 5/8"

109

15 3/8"

26 3/4"

134

19"

32 7/8"

60

8 1/2"

14 5/8"

85

12"

20 7/8"

110

15 1/2"

27"

135

19 1/8"

33 1/8"

61

8 5/8"

14 7/8"

86

12 1/8"

21 1/8"

111

15 3/4"

27 1/4"

136

19 1/4"

33 3/8"

62

8 3/4"

15 1/8"

87

12 1/4"

21 3/8"

112

15 _7/8"

27 1/2"

137

19 3/8"

33 5/8"

63

8 7/8"

15 3/8"

88

12 1/2"

21 1/2"

113

16"

27 3/4"

138

19 1/2"

33 7/8"

64

9"

15 5/8"

89

12 5/8"

21 3/4"

114

16 1/8"

28"

139

19 5/8"

34 1/8"

65

9 1/8"

15 7/8"

90

12 3/4"

22"

115

16 1/4"

28 1/4"

140

19 3/4"

34 3/8"

66

9 3/8"

16 1/8"

91

12 7/8"

22 1l4"

116

16 3/8"

28 1/2"

141

19 7/8"

34 5/8"

67

9 1/2"

16 3/8"

92

13"

22 1/2"

117

16 1/2"

28 5/8"

142

20 1/8"

34 7/8"

68

9 5/8"

16 5/8"

93

13 1/8"

22 3/4"

118

16 5/8"

28 7/8"

143

20 1/4"

35 1/8"

69

9 3/4"

16 7/8"

94

13 1/4"

23"

119

16 7/8"

29 1/8"

144

20 3/8"

35 3/8"

70

9 7/8"

17 1/8"

95

13 3/8"

23 1/4"

120

17"

29 3/8"

 

 

 

71

10"

17 3/8"

96

13 5/8"

23 1/2"

121

17 1/8"

29 5/8"

 

 

 

72

10 1/8"

17 5/8"

97

13 3/4"

23 3/4"

122

17 1/4"

29 7/8"

 

 

 



 

Projection Charts for Bow and Bay Windows

Bow Window (18° to 45°)

Opening

Width

Lites

Minimum

Proj.

Opening

Width

Lites

Minimum

Proj.

Opening

Width

Lites

Minimum

Proj.

Opening

Width

Lites

Minimum

Proj.

48

3

6”

76

4

12 5/8”

92

5

19 3/8”

120

5

25 1/8”

49

3

6 1/8”

77

4

12 3/4”

93

5

19 1/2”

121

5

25 1/4”

50

3

6 1/4”

78

4

13”

94

5

19 3/4”

122

5

25 1/2”

51

3

6 3/8”

79

4

13 1/8”

95

5

20”

123

5

25 3/4”

52

3

6 1/2”

80

4

13 1/4”

96

5

20 1/8”

124

5

25 7/8”

53

3

6 5/8”

81

4

13 3/8”

97

5

20 3/8”

125

5

26 1/8”

54

3

6 3/4”

82

4

13 5/8”

98

5

20 5/8”

126

5

26 3/8”

55

3

6 7/8”

83

4

13 3/4”

99

5

20 3/4”

127

5

26 1/2”

56

3

7”

84

4

13 7/8”

100

5

21”

128

5

26 3/4”

57

3

7 1/8”

85

4

14 1/8”

101

5

21 1/8”

129

5

27”

58

3

7 1/4”

86

4

14 1/4”

102

5

21 3/8”

130

5

27 1/8”

59

3

7 3/8”

87

4

14 3/8”

103

5

21 5/8”

131

5

27 3/8”

60

3

7 1/2”

88

4

14 1/2”

104

5

21 3/4”

132

6

33 7/8”

61

3

7 5/8”

89

4

14 3/4”

105

5

22”

133

6

34 1/8”

62

3

7 3/4”

90

4

14 7/8”

106

5

22 1/4”

134

6

34 3/8”

63

3

7 7/8”

91

4

15”

107

5

22 3/8”

135

6

34 5/8”

64

3

8”

92

4

15 1/4”

108

5

22 5/8”

136

6

34 7/8”

65

3

8”

93

4

15 3/8”

109

5

22 7/8”

137

6

35 1/8”

66

3

8 1/8”

94

4

15 1/2”

110

5

23”

138

6

35 3/8”

67

3

8 1/4”

95

4

15 3/4”

111

5

23 1/4”

139

6

35 5/8”

68

3

8 3/8”

96

4

15 7/8”

112

5

23 1/2”

140

6

35 7/8”

69

3

8 1/2”

85

5

17 7/8”

113

5

23 5/8”

141

6

36 1/8”

70

3

8 5/8”

86

5

18 1/8”

114

5

23 7/8”

142

6

36 3/8”

71

3

8 3/4”

87

5

18 1/4”

115

5

24 1/8”

143

6

36 5/8”

72

3

8 7/8”

88

5

18 1/2”

116

5

24 1/4”

144

6

36 7/8”

73

4

12 1/8”

89

5

18 3/4”

117

5

24 1/2”

 

 

 

74

4

12 1/4”

90

5

18 7/8”

118

5

24 3/4”

 

 

 

75

4

12 1/2”

91

5

19 1/8”

119

5

24 7/8”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


Bay Window
(30° to 45°)

Opening

Width

Minimum

Proj.

Maximum

Proj.

Opening

Width

Minimum

Proj.

Maximum

Proj.

Opening

Width

Minimum

Proj.

Maximum

Proj.

Opening

Width

Minimum

Proj.

Maximum

Proj.

48

6 3/4”

11 3/4”

73

10 3/8”

17 7/8”

98

13 7/8”

24”

123

17 3/8”

30 1/8”

49

6 7/8”

12”

74

10 1/2”

18 1/8”

99

14”

24 1/4”

124

17 1/2”

30 3/8”

50

7 1/8”

12 1/4”

75

10 5/8”

18 3/8”

100

14 1/8”

24 1/2”

125

17 5/8”

30 5/8”

51

7 1/4”

12 1/2”

76

10 3/4”

18 5/8”

101

14 1/4”

24 3/4”

126

17 7/8”

30 7/8”

52

7 3/8”

12 3/4”

77

10 7/8”

18 7/8”

102

14 3/8”

25”

127

18”

31 1/8”

53

7 1/2”

13”

78

11”

19 1/8”

103

14 1/2”

25 1/4”

128

18 1/8”

31 3/8”

54

7 5/8”

13 1/4”

79

11 1/8”

19 3/8”

104

14 3/4”

25 1/2”

129

18 1/4”

31 5/8”

55

7 3/4”

13 1/2”

80

11 1/4”

19 5/8”

105

14 7/8”

25 3/4”

130

18 3/8”

31 7/8”

56

7 7/8”

13 3/4”

81

11 1/2”

19 7/8”

106

15”

26”

131

18 1/2”

32 1/8”

57

8”

14”

82

11 5/8”

20 1/8”

107

15 1/8”

26 1/4”

132

18 5/8”

32 3/8”

58

8 1/4”

14 1/4”

83

11 3/4”

20 3/8”

108

15 1/4”

26 1/2”

133

18 3/4”

32 5/8”

59

8 3/8”

14 3/8”

84

11 7/8”

20 5/8”

109

15 3/8”

26 3/4”

134

19”

32 7/8”

60

8 1/2”

14 5/8”

85

12”

20 7/8”

110

15 1/2”

27”

135

19 1/8”

33 1/8”

61

8 5/8”

14 7/8”

86

12 1/8”

21 1/8”

111

15 3/4”

27 1/4”

136

19 1/4”

33 3/8”

62

8 3/4”

15 1/8”

87

12 1/4”

21 3/8”

112

15 7/8”

27 1/2”

137

19 3/8”

33 5/8”

63

8 7/8”

15 3/8”

88

12 1/2”

21 1/2”

113

16”

27 3/4”

138

19 1/2”

33 7/8”

64

9”

15 5/8”

89

12 5/8”

21 3/4”

114

16 1/8”

28”

139

19 5/8”

34 1/8”

65

9 1/8”

15 7/8”

90

12 3/4”

22”

115

16 1/4”

28 1/4”

140

19 3/4”

34 3/8”

66

9 3/8”

16 1/8”

91

12 7/8”

22 1/4”

116

16 3/8”

28 1/2”

141

19 7/8”

34 5/8”

67

9 1/2”

16 3/8”

92

13”

22 1/2”

117

16 1/2”

28 5/8”

142

20 1/8”

34 7/8”

68

9 5/8”

16 5/8”

93

13 1/8”

22 3/4”

118

16 5/8”

28 7/8”

143

20 1/4”

35 1/8”

69

9 3/4”

16 7/8”

94

13 1/4”

23”

119

16 7/8”

29 1/8”

144

20 3/8”

35 3/8”

70

9 7/8”

17 1/8”

95

13 3/8”

23 1/4”

120

17”

29 3/8”

 

 

 

71

10”

17 3/8”

96

13 5/8”

23 1/2”

121

17 1/8”

29 5/8”

 

 

 

72

10 1/8”

17 5/8”

97

13 3/4”

23 3/4”

122

17 1/4”

29 7/8”

 

 

 

Note: Add projection and wall thickness together to determine total unit depth.