Suggested EPI for Cotton,
Silk, Wool & Linen
 

Suggested Setts/Ends per Inch (EPI)
for Balanced Cotton Weaves*
 
Cotton Thread Size Yards per Pound Wide Sett EPI Medium Sett EPI Close Sett EPI
3/2 1,260 10 11 12
5/2 2,100 15 16 18
8/2 3,200 18 22 24
10/2 4,200 20 24 28
12/2 5,040 20 24 30
14/2 5,880 20 24 30
16/2 6,720 24 30 36
18/2 7,560 24 30 36
20/2 8,400 24 30 36
50/2 21,000 48 75 80

Suggested Setts/Ends per Inch (EPI)
for Balanced Silk Weaves*
 
Silk Thread Size Yards per Pound Wide Sett EPI Close Sett EPI Twill Sett EPI
2/12 (pearle) 2980 15 20 22
2/5 (pearle) 1250 10 12 14

 
Silk Thread Size Wide Sett EPI Close Sett EPI Twill Sett EPI
8/2 20 28 22
12/2 20 18 22
20/2 26 24 28
30/2 32 30 34
60/2 72 66 70

 

Suggested Setts/Ends per Inch (EPI)
for Balanced Wool Weaves*
 
Wool Thread Size Yards per Pound Wide Sett EPI Close Sett EPI Twill Sett EPI
4 ply rug yarn 300 4 5 6
1 ply bulky 485 6 8 9
7/2 wool 1,640 12 15 17
Harris tweed 1,700 12 16 18
2 ply shetland 2,000 15 18 20
12/3 worsted 2,160 15 18 20
brushed mohair 800 4 8 9

Suggested Setts/Ends per Inch (EPI)
for Balanced Linen & Cottolin Weaves*
 
Linen Thread Size Yards per Pound Wide Sett EPI Close Sett EPI Twill Sett EPI
22/2 cottolin 3,250 15 20 22
20/2 linen 3,000 20 24 26
16/2 2,400 15 20 22
8/2 1,180 10 12 14

*Not definitive, compiled from many sources and some guess work. Use at your own descretion.
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