How the canvas works

The wall is one shared canvas that everyone draws on. Here is how space on it actually works, and how to get the piece you want.

5 MIN READ

Free pixels land on the outer band. The middle is kept for pieces someone chose.

One canvas, a million cells

The canvas starts as a single grid of a thousand cells by a thousand — a million in total. A cell is the smallest unit of the wall, and a piece is a rectangle of them that belongs to one owner.

No two pieces can overlap. The server checks every placement against every committed piece before it lets one through, so your rectangle is exclusively yours in the way a plot of land is.

Free pixels versus chosen spots

A free account gets one cell, placed for you on the outer band of the canvas. It is genuinely yours — it just is not somewhere you picked.

Choosing your own spot is what the paid tiers sell. The centre of the wall, the part people screenshot and zoom into first, is deliberately kept for pieces someone decided on rather than pieces that were handed out.

What happens when it fills up

When the canvas gets busy enough, a ring is added around the outside and the world gets bigger. This matters more than it sounds: every existing piece keeps its exact coordinates. Nothing is remapped and nobody's piece moves, ever.

So an early piece stays where it is while the wall grows outward around it — which is why the middle of the canvas is the part worth having.

Two ways to get more space

  • A plan gives you an allowance — the bigger the tier, the bigger the block, and you choose where it goes.
  • Buying cells outright at a dollar each is a one-off purchase. Those cells are permanent property: they stay yours whether or not you keep a plan.
  • Already have a piece and want it bigger? Expanding pays only for the cells you add, and your handle, links and styling all survive the change.
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