This web site gives you the math to figure out the size you need. If your pattern calls for cutting them at 2 7/8 inches (which most people would round up to 3") then you must need 2" finished size.
http://melaniedramatic.com/half-squa...angles-part-2/
If I had to cut that many from the same fabrics I would buy some thangles.
http://www.thangles.com/howtheywork.html
Last edited by dunster; 03-20-2016 at 07:39 AM.
Reason: adding URL