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Approximate Louver Count and Stack Chart for Vertical Blinds
All sizes shown below are APPROXIMATE. The Louver Quantity is the number of louvers/vanes, also known as slats for that vertical blind size,
the Finished Blind Width is the overall size you would order, the Opening Size Cleared is the portion of glass/view exposed after
verticals are drawn open and the Stack Size is the overall size of stack when drawn back, including the control side end cap. For a split draw track always round odd numbers up (must have same number of louvers on BOTH sides).
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7 |
22" |
16" |
6" |
8 |
25" |
18 1/2" |
6 1/2" |
9 |
28" |
21 1/8" |
6 7/8" |
10 |
31" |
23 5/8" |
7 3/8" |
11 |
34" |
26 1/8" |
7 7/8" |
12 |
38" |
29 3/4" |
8 1/4" |
13 |
41" |
32 1/4" |
8 3/4" |
14 |
44" |
34 3/4" |
9 1/4" |
15 |
47" |
37 1/4" |
9 3/4" |
16 |
50" |
39 7/8" |
10 1/8" |
17 |
53" |
42 3/8" |
10 5/8" |
18 |
56" |
44 7/8" |
11 1/8" |
19 |
59" |
47 1/2" |
11 1/2" |
20 |
60" |
48" |
12" |
21 |
66" |
53 1/2" |
12 1/2" |
22 |
69" |
56" |
13" |
23 |
72" |
58 5/8" |
13 3/8" |
24 |
75" |
61 1/8" |
13 7/8" |
25 |
78" |
63 5/8" |
14 3/8" |
26 |
81" |
66 1/4" |
14 3/4" |
27 |
84" |
68 3/4" |
15 1/4" |
28 |
88" |
72 1/4" |
15 3/4" |
29 |
91" |
74 3/4" |
16 1/4" |
30 |
94" |
77 3/8" |
16 5/8" |
31 |
97" |
79 7/8" |
17 1/8" |
32 |
100" |
82 3/8" |
17 5/8" |
33 |
103" |
84 7/8" |
18 1/8" |
34 |
106" |
87 1/2" |
18 1/2" |
35 |
109" |
90" |
19" |
36 |
113" |
93 1/2" |
19 1/2" |
37 |
116" |
96 1/8" |
19 7/8" |
38 |
119" |
98 5/8" |
20 3/8" |
39 |
122" |
101 1/8" |
20 7/8" |
40 |
125" |
103 5/8" |
21 3/8" |
41 |
128" |
106 1/4" |
21 3/4" |
42 |
131" |
108 3/4" |
22 1/4" |
43 |
134" |
111 1/4" |
22 3/4" |
44 |
138" |
114 7/8" |
23 1/8" |
45 |
141" |
117 1/8" |
23 7/8" |
46 |
144" |
119 7/8" |
24 1/8" |
47 |
147" |
122 3/8" |
24 5/8" |
48 |
150" |
124 5/8" |
25 3/8" |
49 |
153" |
127 1/2" |
25 1/2" |
50 |
156" |
130" |
26" |
51 |
159" |
132 5/8" |
26 3/8" |
52 |
163" |
136 1/8" |
26 7/8" |
53 |
166" |
138 5/8" |
27 3/8" |
54 |
169" |
141 1/8" |
27 7/8" |
55 |
172" |
143 3/4" |
28 1/4" |
56 |
175" |
146 1/4" |
28 3/4" |
57 |
178" |
148 3/4" |
29 1/4" |
58 |
181" |
151 1/4" |
29 3/4" |
59 |
184" |
153 7/8" |
30 1/8" |
60 |
188" |
157 1/8" |
30 7/8" |
61 |
191" |
159 7/8" |
31 1/8" |
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