Definition: Opus Craticium is a low-cost, Roman wall construction method. Onto a lattice framework, a mixture of whatever is at hand -- pebbles and rocks is added. Herculaneum has the only surviving building made entirely of Opus Craticium. The 2-story half-timber building is sometimes called The House in Opus Craticium. The construction was described by Vitruvius
as Craticii or Opus Craticium. This construction may have been used for the insulae cheap apartment houses in Rome.
Main source: [ www.conservationtech.com/RL's%20resume&%20pub's/RL-publications/Eq-pubs/2006-India-SAHC/sm2LANGENBACH-SAHCplenary.pdf PDF of From "opus craticium" to the “Chicago frame"
Also Known As: infill-frame construction
