Which opus type produces a net-like wall surface?

Which opus type produces a net-like wall surface?

• A. Opus Recticulatum
• B. Opus Mixtum
• C. Opus Incertum
• D. Opus Quadratum

Answer: (A)

Opus Recticulatum creates a net-like surface because its tesserae are small square pieces arranged in a regular grid, so the joints form a visible lattice across the wall. The name itself hints at a net or reticulum, reflecting this grid-like pattern. This contrasts with Opus Incertum, which uses irregular stones with no coherent pattern, Opus Quadratum, which shows large square blocks laid in straight courses without a net-like grid, and Opus Mixtum, which combines patterns and would not produce a uniform net across the surface.

Opus Recticulatum creates a net-like surface because its tesserae are small square pieces arranged in a regular grid, so the joints form a visible lattice across the wall. The name itself hints at a net or reticulum, reflecting this grid-like pattern. This contrasts with Opus Incertum, which uses irregular stones with no coherent pattern, Opus Quadratum, which shows large square blocks laid in straight courses without a net-like grid, and Opus Mixtum, which combines patterns and would not produce a uniform net across the surface.