Draw Yours
You can draw your own canvas in one sitting if you fill the blocks in a set order. Then read it for the pair that contradicts, which is the reason to draw it at all.
Work on one blank page or a printed canvas, one short line per block. Two numbers matter more than any wording: what one customer pays you and what it costs to serve them once. Guess them honestly instead of leaving them blank.
Fill the blocks in this order.
One sentence specific enough that a single channel reaches it.
What changes for that customer, in their words, without naming your product.
Channels, relationship and revenue stream, each one following from the promise.
Key activities, then the resources they need, then the partners for what you will not own, then the costs.
What one customer pays and what serving them once costs, side by side.
Costs against revenue, segment against channel, promise against resources and partners. Circle any pair that cannot both be true.
A freelance designer who does this finds her revenue line says $1,500 a website and her cost line says about 40 hours of her own time. At that rate she earns under $40 an hour before software and tax, which tells her to change the price or the scope before she looks for more clients.
You finish your canvas and every block looks reasonable, but you left the two bottom-edge numbers blank because you were unsure. What should you do next?
Estimate both numbers roughly and compare them on one customer
Leave them blank until you have a full year of data
Add more detail to the blocks that already look reasonable
Move on, since a canvas with nine reasonable blocks is complete
The bottom edge is the one test that decides whether the rest of the page can work, and a rough guess can be checked and corrected. A blank hides exactly the contradiction the canvas exists to show. Adding detail elsewhere or moving on to a pitch leaves the most important question open.