I am using a pattern from Handwoven (March/April 2001, p. 46) for my placemats. I have done 3 repeats; the pattern calls for 6 repeats per placemat. The placemat after finishing would be 17 1/2 inches in length. I am already with 3 repeats at 14 inches in length! I think 6 repeats will make this placemat 28 inches long and I don’t think shrinkage and take up will equal 10 inches!
So my adjustment, I think, will be to do only 5 repeats, making the placemat on the loom about 23 inches! That way, if shrinkage and take up is about 17%, as the project indicates, the placemats should be about 19 or so inches.