Kiln Shelf Calculator

Plan your kiln loading by calculating how many pieces fit per shelf and total kiln capacity.

Kiln Interior Dimensions

Piece Dimensions

Clearance above tallest piece on shelf (posts usually 0.5" to 1" taller than pieces)

Total Kiln Capacity
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pieces per full load
Pieces per Shelf
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Number of Shelves
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Shelf Level Height
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Space Efficiency
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Layout

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Kiln Loading Tips

Efficient kiln loading saves energy and ensures even firing. Leave adequate spacing between pieces for heat circulation, and avoid placing pieces too close to elements.

Loading Guidelines

  • Leave 1/2" to 1" between pieces for bisque firing
  • Glaze-fired pieces must not touch - leave at least 1/2" gap
  • Keep pieces at least 1" from kiln walls and elements
  • Use kiln wash on all shelves to prevent glaze drips from bonding
  • Place heavier pieces on lower shelves

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