I generally charge one flat rate for shipping all furniture kits and 3D printed accessories:
United States = $4.50
Canada = $12.75 UP TO 8 OUNCES (Actual cost but includes an additional free gift from me)
Rest of the world (except UK) = Actual postage cost (approx. $16.00)
Shipping for the Structure Kits is a little bit more because of the weight (starting at $5.50 US) but I will combine everything and ship at the least possible actual cost.
Because of the change in the VAT collection regulations, I cannot ship orders under $200 US to the UK. Once I have my Etsy store established I will be able to ship smaller orders again.
For larger orders I also offer free or reduced shipping charges or I include free gifts.
Please feel free to ask if your order qualifies for a discount. I am always willing to do whatever I can.