Estimated from the DTM (bare-earth) model on a ~2 m grid inside the last measured area. Balanced mode sets the level plane where cut equals fill. In-place volumes — no compaction or shrink/swell factor.

Trusses render as a 3D lattice (base slab + gable trusses at ~4:12 pitch) and the crane is a true 3D model scaled to the boom-reach input; both clamp to the DTM. Check Reach colors trusses green within boom reach, red outside. Save Plan exports the polygon, trusses, crane, and cut/fill plane as JSON; Load Plan rebuilds it after a fresh page open.