One of the great weaving questions is ‘How much yarn is left on that cone?’
I can’t answer that but what I can answer is, how much does that cone weight empty? I started to keep a spreadsheet on how much the empty cones weight and the dimensions of the cone and I thought I'd share my data with you.
I have found that Brassards from Plessisville, Quebec Canada uses the same tube for most of their 8 oz products – Average Weight is 0.40 oz.
2/8 Cotton Unmercerized
Webs in Easthampton MA, USA is another supplier that we use. The 1 lb cones that they use are different sizes and shapes but I use this weight for a rough idea.
2/8 Tencel on 8 oz tubes is 0.25 oz
2/8 Tencel on 1 lb cones is 1.18 oz
2/20 Tencel on 1 lb cones
Sometimes weavers pick up cones and tubes from Guild Sales and you don’t know where they are from but maybe knowing the dimensions of the tube you can use these mystery cones as a reference.
Silk 2/6 weight is 0.90 oz
Mystery Blue Plastic Cone that contained 2 ply linen is 3.00 oz
I hope that this information helps you I know it helps me.