wooden_flower Volunteer Community Mentor.
Turn on combined payments so that your buyers can put their items in their cart and then request a total and you can send an invoice.
To turn on combined payments -
On the Manage shipping settings - opens in new window or tab page, select Edit beside Allow combined payments and shipping.
Choose the time period during which you're willing to combine payment for purchased items and select Save. 3 days is good unless you run auctions and want to give buyers more time.
You can set up a calculated shipping rule, but I'm not sure it will help since your fabric is already in the 5 - 8 oz range. The rule doesn't work well when it needs to cross over from first class to priority, but you could set one up and play with it to see if you can get some good results. To set up your calculated shipping rule go here and click edit by calculate rule - https://www.ebay.com/ship/prf
Combined shipping rules work better with flat rate shipping, but again with your starting weight, it only takes a few additional yards before you move into priority.
So I would start with getting your buyers to use the cart and request a a total so that you can send an invoice with the correct shipping. To get the shipping right, you will have to look up the zip on the zone chart, then find the price for that weight/zone on the usps chart.
Look up the zone here - https://postcalc.usps.com/domesticzonechart
then use either the first class package or priority rate charts here - you charge the buyers the retail rates, you pay the commercial rates -
https://www.usps.com/business/prices.htm
I assume fabric buyers are used to asking for a combined total, but it can help to add a line in your listings asking them to use the cart and then request total form seller.
