MapDimensioning names the operator through which Socioplastics converts accumulated material into an architecturally intelligible field, treating nodes, texts, images, DOIs, platforms, indexes, and relations not as undifferentiated data but as a constructed environment with scale, depth, strata, thresholds, circulation, and load-bearing elements. Its decisive proposition is that a corpus only becomes governable when it can measure itself: quantity must be transmuted into sectional awareness, topographic order, and infrastructural legibility. At high intensity, MapDimensioning effects an ontological shift from expansion to field-consciousness, making scale a form of intelligence rather than a symptom of growth. At medium intensity, it mediates between VerticalSpine, MasterIndex, StructuralCoherence, MeshEngine, and ThresholdClosure, supplying the coordinates, extents, hierarchies, and sectional logic that allow indexing, sequencing, and stabilisation to operate with precision. At low intensity, it is grounded in practical audits: node counts, Century Packs, tome strata, DOI anchors, repository maintenance, platform mapping, metadata calibration, and duration tracking. In the case of Core IV · Field Conditions, Socioplastics [2505] demonstrates how the corpus is dimensioned like a building or urban territory, with access points, edges, load paths, public routes, and maintenance protocols. Consequently, MapDimensioning prevents gravitational density from collapsing into fog or pure rhizomatic dispersion. It renders the epistemic environment habitable for HomoEpistemologicus, adaptable for UnstableInstallation, and navigable through public syntax. Its conclusion is exact: measurement is not administrative supplement but spatial intelligence, the act by which knowledge locates, calibrates, governs, and preserves its own plastic architecture. Lloveras, A. (2026) MapDimensioning — Socioplastics [2505]. Zenodo. https://doi.org/10.5281/zenodo.19889238