Join is a collaborative preconstruction and design‑phase management platform that unites contractors, owners, design teams, and trades around cost, timeline, and design clarity through a single interface. It centralizes all decisions, cost data, and stakeholder communication in real time, enabling users to visualize cost trending with rapid reporting, track decision history and assignments, compare cost and design scenarios side‑by‑side, and manage project risks, contingencies, and allowances without siloed emails or spreadsheets. Built to support thousands of decisions per project, Join aligns design concepts with preconstruction milestones to help teams hit budget, schedule, and vision targets. Its highly visual dashboard adapts to workflows such as Design‑Build, CMAR, IPD, IFOA, and TVD, while executive‑level views allow portfolio monitoring, precise future job estimation, risk mitigation, and performance benchmarking.