Sage 300 Construction and Real Estate, which most of the industry still calls Timberline, is the system a very large share of established American general contractors and developers have been running for twenty years. It sits above Sage 100 Contractor in every dimension: capability, complexity and cost.
What it does well
Depth at scale. Job costing across hundreds of concurrent jobs, subcontract control with compliance tracking that will not release a payment while an insurance certificate is expired, and prevailing wage and union payroll with the fringe calculations that defeat general payroll systems. If you are running federally funded work with certified payroll and multiple unions, there are very few alternatives that handle it honestly.
The property management side is the other half and the reason developers buy it. Lease administration, CAM reconciliation and tenant billing sit in the same system as the construction accounting, so a company that builds and then holds does not run two systems.
Where it fits
US general contractors and real estate developers from roughly fifty to a thousand people, particularly those doing public work.
Where it frustrates people
This is old software and nobody involved pretends otherwise. The interface is genuinely dated, the module boundaries reflect decisions made decades ago, and new staff need weeks rather than days to become useful. Implementation is a long project with a specialist partner and the cost is significant.
The roadmap is the honest concern. Sage is investing visibly in Intacct Construction, and buyers should ask directly where 300 CRE sits over the next five years rather than assuming the answer. The counterweight is that the install base is enormous, people who know it are findable, and it does the hard things correctly, which is why firms stay on it long after they have complained about it.
United States
Canada
