We recommend Firefox 2!


HACKER SAFE certified sites prevent over 99.9% of hacker crime.

Vertical Blinds Louver Count and Stack Chart


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. 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).


Vertical Blind Headrail

Louver Qty Finished Blind Width Opening Size Cleared Stack Size
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"


--->