I always charge a flat rate of $29. I have a completely paranoid idea that really high flat rates scare off or bother bidders.
I just shipped an Eastwood P-90 Special in a molded rectangular hardcase from Milwaukee Wisconsin to central Utah for $14.50. Included in the $14.50 was $350 worth of insurance.
I figure that if I make a choice to sell a guitar, I'm not going to stick it to the the buyer because I needed a box. I have a whole week during the ebay auction to stop at a guitar shop and get a free box. I guess that it's as big of a deal as you make of it.
Back to shipping.....
Go to this web site....
Fill out the new customer form and you'll get a FedEx Shipper number. You'll have to give them a credit card number to hold. They will bill that card when you ship something from any FedEx-Kinkos store.
New FedEx registered customers (like you) get an additional 20% off every shipment for the first three months.
A. You get a lower rate as a registered FedEx customer with your own shipper ID number
B. You get the 20% off deal for three months
My initial 3 month period is long gone but again.......I just shipped a 16 pound guitar box from Wisconsin to Utah with $350 worth of insurance for $14.50.
If you use ebay, list a flat rate of $29 or $28.50 so that it sounds calculated and fair. You'll get more attention. I've used free shipping with a high buy it now and I've sold guitars in 12-24 hours.
I paid $399 for my Eastwood and I had a rectangular plastic case that I got free with a Melody Maker (I bought a better fitting case for the Melody Maker).
I listed the Eastwood at an opening bid of $275 with $29 shipping. I added a buy-it-now of $350 with these words....Buy-it-Now includes FREE SHIPPING!
I had the $350 in my paypal account withing 24 hours....someone jumped at it. If you take the $14.50 true shipping cost away from what I made selling, the cost of ownership of the Eastwood came out to $399 - $350 + $14.50 = $63.50. $63.50 to own the Eastwood for over a year.
Don't go nuts with high shipping charges, just get people to bid!