@Shannon I do hope you will consider placing an ad here on the ATP Classified Forum with a few photos of the birdhouses you are selling. You can list prices and state "Plus Shipping Charges".
Other than using the free flat rate priority boxes I don't know what shipping charges would be because of trying to find boxes of the right size to hold fully constructed, heavy wood birdhouses.
You can pick up free flat rate boxes from your post office. Large facilities usually have them sitting out somewhere on display. One of our smaller post offices carries them but I always have to ask because they don't have space in front to put them on display; sometimes they don't have all sizes in stock. You can order them for free on-line too, each size comes in bundles of ten:
https://store.usps.com/store/b... and the mailman will drop them off at your house; if you aren't home they leave them by the front door. I don't think any of the flat-rate boxes will hold an assembled birdhouse though, except possibly the shoe box size might hold a small one.
Another suggestion I think someone mentioned earlier would be shipping the birdhouses un-assembled. Your husband could cut the wood to size/shape so that the un-assembled pieces could be packed flat with instructions included for assembly. That way you could definitely use the different size flat rate boxes for different size houses.
AT the U.S. Postal Service website:
https://www.usps.com/ on the left there's an area where you can calculate the cost of shipping from you to someone else by typing in your zip code and the destination zip code but it doesn't matter the distance or where you are shipping to when you use priority flat rate; whatever fits in the box goes for that flat rate. For instance I typed in my zip code of 32119 with shipping to zip code 90210 (California) and also zip code 29605 (South Carolina) and the price for a medium flat rate box was $12.65 to both destinations and the price for a small flat rate box was $5.25 to both locations.
I look forward to your ad and seeing what birdhouses you have for sale,
Lin
