Toolbox

Material weight

Estimate how heavy a diorama base or wall will be in concrete, plaster, XPS foam, MDF, plywood, resin or 3D-printed PLA, and how much material to buy.

Volume
Estimated weight
Buy at least
Shelf check

Why weight matters

A diorama has to survive being moved, filmed, shipped to a show and put on a shelf. My Mad Max garage sits on a real poured concrete slab of 80 × 60 cm, and it is heavy. It looks great on camera, but plan for it.

Lighter ways to get the same look

  • Pour a thin skin of concrete or plaster over an XPS foam core. You keep the texture and lose most of the weight.
  • Use MDF or plywood only as a frame, not a solid slab.
  • For 3D-printed floors, 10–15% infill is plenty. The surface does the work.

Need wall sizes for the same base? Run them through the brick generator.