How many blocks does a Minecraft schematic need?

A schematic is only useful in survival if you can gather what it needs. We ran the real generator for all 13 build shapes at the free size (20 blocks on a side) and the Pro size (48) and converted the block totals into stacks of 64 and 27-slot shulker boxes. The smallest build is 416 blocks; the largest is 104,796.

Free size, 20 × 20 × 20

Pro size, 48 × 48 × 48

How to read the numbers

Blocks is every non-air cell the generator placed, the same figure Litematica shows as total blocks. Stacks divides by 64 and rounds up, which is right for building blocks but too small for items that stack to 16 (signs, buckets) or do not stack. The biggest single material shows where most of the gathering goes: the free castle is 2,211 stone bricks out of 2,762. Water counts as a block here, so the fountain’s biggest entry is water (198), which you place with buckets, not by the stack.

Cells and blocks are different: the free box has 8,000 cells and the free castle fills 2,762; the Pro box has 110,592 cells. If the number is bigger than you want to gather, ask for a smaller footprint in the prompt; sizing words are covered on schematic size limits and prompt wording on prompt tips.

From a count to a shopping list

The materials.csv in every download breaks the total down by block state; see Litematica material list. Placing from the hologram is covered on easy place. Pro only raises the size ceiling and the daily number of generates, so check the table above before you decide a 48-block build is something you want to hand-place; the Pro price is one-time.

How this was measured

On 2026-10-04 we ran the same compile step as the generate button with the prompt 20x20x20 oak <shape> or 48x48x48 oak <shape> and read the block total and the material list from the resulting grid. Stack and shulker figures are arithmetic on those totals (64 per stack, 27 stacks per box), not separate measurements. We also ran all 13 palettes on all 13 shapes at 20 blocks: the totals were identical, only the block names change. The site’s tests re-run the generator and fail if this table stops matching it. These are the default settings for each shape; a prompt that asks for a different footprint produces a different count.

Reviewed 2026-10-04. Not affiliated with Mojang or Microsoft.