Launching a physical product line with custom designs is exceptionally affordable through print-on-demand. The process is simple: you supply the artwork, and the printing provider produces and fulfills each item only as orders arrive. This model removes the need for upfront inventory, warehouse storage, or holding unsold stock in unpopular sizes.
However, this convenience comes with higher unit costs, as printers factor inventory risk management directly into order pricing. Account for this from the start by calculating margins before beginning the design phase. Doing this upfront clarifies which items are financially viable.
Select a single product to offer. For most sellers, a classic unisex T-shirt is a great starting point. Calculate the true expenses behind each transaction:
Your base costs establish a minimum price floor. Any revenue beyond this floor is your profit margin, which must cover expenses like advertising, design fees, sample purchases, and your time. Pricing a shirt at $25 with complimentary shipping sets a base floor around $18.70, yielding roughly $6.30 in profit before marketing expenses. Keep in mind that Printify rates vary by print provider, so compare identical blank garments across vendors.
When analyzing several products at once, enter your supplier’s base costs and delivery rates into Claude using this prompt:
“At what retail price does each of these products clear a 40% margin after shipping and a 2.9% + $0.30 payment fee? Show the math, and mark any product where that price is higher than what similar items sell for on Etsy.”
If an item can’t maintain your target margin at a competitive retail market price, remove it from your lineup immediately.
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