Updated: August 2026
A build programme is a sequence of gates, not a list of months. Each gate is a point where work should stop until something has been verified, and the value of the programme lies almost entirely in whether those gates are respected. Programmes fail when a gate is passed on optimism rather than on evidence.
- Design freeze is the first and most important gate; everything downstream inherits its quality.
- Structural gates — keel, frames, planking, deck, closing in — are physical and cannot be faked.
- Commissioning and trials need real buffer, because that is where every earlier shortcut surfaces.
Phase one: design freeze
Before any timber is cut, the general arrangement, the specification schedule and the principal systems layout should be settled and signed. This is the least expensive phase to change and the most expensive one to leave open. An owner who signs a contract with the interior “to be finalised later” has effectively agreed to pay whatever those decisions cost when they are eventually made, under time pressure, with the structure already built.
A proper design freeze covers more than looks. It fixes cabin count and layout, engine and generator selection, tank capacities and positions, the electrical load calculation, the anchoring and mooring arrangement, and the intended certification path. Those choices drive structure. Once frames are erected, changing them means cutting out work that has already been paid for.
Phase two: structure
The structural phase runs from keel laying through frame erection, planking, deck beams and decking, to closing in the superstructure. It is the most visible part of the programme and the easiest to verify, which makes it the right place to tie payment milestones. Each of these states can be photographed, dated and inspected, and any competent surveyor can confirm them in a short visit.
It is also the phase where weather bites hardest, particularly in yards that build in the open. A sensible programme aims to have the hull closed in before the heaviest rain months, because a closed hull lets interior work continue regardless of conditions. Where that sequencing is impossible, the programme should carry explicit weather allowance rather than pretending the rain will not arrive.
Phase three: systems and fit-out
Once the vessel is closed in, the work becomes less visible and the schedule becomes harder to police. Piping, wiring, tanks, insulation, machinery installation and joinery all proceed in parallel, often with different subcontractors, and the critical path moves around. This is where owner-side supervision earns its fee, because progress reported as a percentage can be almost meaningless without someone checking what has actually been installed.
Sequencing errors are common here and expensive to correct. Insulation installed before pipework is tested, joinery fitted over an access panel that will later be needed, cable runs completed before a system change is confirmed. Each individually is small; together they produce the classic pattern where a build is reported at ninety per cent for four months.
Phase four: commissioning and trials
Commissioning is where a collection of installed equipment becomes a working vessel. Tanks are filled and pressure-tested, systems are run under load, the engine and gearbox are aligned afloat, steering and controls are proved, and the electrical system is checked with everything running at once. Sea trials then test the vessel in its real environment: handling, vibration, noise, fuel consumption, machinery temperatures, steering response and anchoring.
Programmes routinely under-allocate this phase. A realistic build reserves weeks, not days, and expects a snag list to emerge from trials. That list is not a sign of failure; it is the purpose of trials. What matters is that time exists to close it before the vessel is required in service.
Phase five: handover
Handover should be an event with a document, not a handshake at a jetty. It normally includes an agreed snag list with owners for each item and dates, the delivery of manuals, drawings and equipment documentation, keys and spares, warranty terms confirmed in writing, and the transfer of any registration and certification paperwork. Where a crew is joining, familiarisation and system training belong here too.
The most common handover mistake is accepting the vessel before the documentation exists. Manuals, as-built drawings and equipment serial records are far harder to collect after the yard has moved on to its next hull. Owners who withhold a defined final payment until the document set is delivered generally receive it.
Where programmes actually slip
In practice, slippage clusters in four places: late design decisions, imported equipment lead times, weather during the open phases, and the commissioning tail. Yard speed on the structural phase is rarely the problem, because that is the work yards do best and control most directly. Owners who protect the programme therefore focus on freezing design early, ordering long-lead equipment as soon as the specification is fixed, sequencing around the wet season and refusing to compress trials.
Frequently asked questions
How long does a phinisi build take from contract to handover?
Programmes commonly run between twelve and twenty-four months for mid-size vessels, with complexity of systems and interior finish mattering more than raw length. A simple hull with modest systems can be quicker; a heavily specified commercial vessel with imported equipment will sit at the longer end.
What is a realistic buffer to build into the schedule?
Most experienced owners plan two to three months of margin between expected handover and the date the vessel must be in service. That absorbs a delayed shipment, a weather-affected month and a longer-than-expected commissioning phase without turning the first season into a crisis.
Can I visit during the build?
You should, and the contract should say so. Regular access, whether by the owner or an appointed representative, is the single most effective control on both quality and schedule. Agree the frequency and notice period in advance so visits are routine rather than treated as inspections of trust.
What should trigger the final payment?
Completion of sea trials and closure of the agreed snag list, together with delivery of the documentation package. Tying the final tranche to a calendar date instead removes the yard’s incentive to finish the last and least glamorous ten per cent of the work.
Related reading
Speak to the build desk
If you are writing a programme around a fixed season, the gates matter more than the dates. Send the vessel length, intended operating area and target delivery window to our build desk on WhatsApp at +62 811-3941-4563 or by email at [email protected], and you will receive a written response covering yard options, realistic programme dates and the documents required before any money moves. All figures are quoted in USD.
Who you contract with
Phinisi Shipyard is a specialist maritime brand and digital platform under Juara Holding Group. Construction, new-build project management, supervision, handover and vessel-sale contracts are issued by PT Komodo Galangan Nusantara. Technical and commercial vessel management is contracted separately through PT Komodo Vessel Management, and brokerage, central agency and charter marketing through PT Komodo Bahari Nusantara. Separate contracts, separate fees, separate ledgers, one integrated maritime ecosystem.
