Product Description

Metric reeds have a designation of "xx" dents per 10 centimeters.  For example, a 40-10 designation means 40 dents per 10 centimeters.   LoftyFiber provides charts with sleying pattern setts in both imperial (dents per inch) and metric (dents per centimeter) for the metric reeds on this listing.  These charts are in the learning site, learn.loftyfiber.com under Weaving How-To section, Understanding Sett - Sleying Reeds and Raddles:

https://learn.loftyfiber.com/weaving-how-to/understanding-sett-sleying-reeds-and-raddles

The epcm (ends per cm) and dents per inch (dpi) for each of the metric reeds below are as follows:

20/10  2 ends per cm, 5.08 ends per inch

30/10 3 ends per cm, 7.62 ends per inch

40/10 4 ends per cm,  10.16 ends per inch 

50/10 5 ends per cm, 12.7 ends per inch

60/10 6 ends per cm, 15.24 ends per inch

70/10 7 ends per cm, 17.78 ends per inch

80/10 8 ends per cm, 20.32 ends per inch

The lengths in imperial:

30cm - 11.8" 

40cm - 15.7"

50cm - 19.7"

70cm - 27.6"

90cm - 35.4"

110cm - 43.3"

130cm - 51.2"