Shipyard Cash Budget • Dock Days • Hull & Steel • Work Packages • Contingency • Tax • Off-Hire • Overrun Exposure

Ship Drydock Cost, Yard Budget & Off-Hire Exposure Calculator

Build a defensible vessel drydock budget without mixing yard spending and lost earnings. Simple mode gives a fast project estimate. Advanced mode develops coating and steel quantities, itemizes additional work packages, exposes critical-path day additions, stress-tests scope growth and schedule overrun, and shows the commercial cost of every extra day in the yard.

Figures represent Currency
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Need coating area, steel tonnage, detailed work packages or overrun scenarios? Click Advanced above.Simple keeps the yard cash budget separate from vessel off-hire exposure, then combines them only in the all-in economic view.
CashShipyard budget
CommercialOff-hire exposure
RiskOne-extra-day cost

Simple Drydock Budget

Enter the major quoted or budgeted cost buckets. All values should use the selected display currency.

Scheduled yard/dock duration.
Commercial opportunity cost, not yard cash.
Applied to direct project cost.

Drydock Plan & Commercial Basis

Per economic off-hire day.
0 disables budget ceiling check.
0 disables all-in economic check.

Underwater Hull & Coating Builder

Use measured coating area when available. Otherwise the geometric estimate is a planning approximation only.

m.
m.
m.
Applied to L × (B + 2D).
m². 0 uses geometric estimate.
per m².
per m².
per m².

Steel & Additional Labour

tonnes.
per tonne.
hours.
per hour.

Additional Work-Package Register

Use quoted/budgeted amounts for packages not already captured by hull, steel or labour builders. Scope growth adjusts each row. Critical-path add-on days are incremental days beyond the base docking plan.

UsePackageBase amountScope growth %Critical-path add-on days

Overrun Stress Register

Stress the base budget with additional scope growth, extra dock days, yard-rate movement and changes in vessel opportunity cost.

UseCaseScope growth %Extra dock daysYard rate %Off-hire value %

Drydock Readiness Checks

Planning limitation: This tool is a budgeting and commercial-exposure screen. Actual drydock cost depends on vessel condition, yard location, repair specification, coating system, steel findings, class/statutory scope, exchange rates, labour/productivity, subcontractors, tax, weather, parts availability and discoveries after opening or blasting. Hull area is a preliminary estimate unless replaced by measured or quoted area.
Planning basis: Good survey preparation can reduce unplanned work and costly yard delay by exposing class scope and repair needs before the vessel enters dock. Keep shipyard cash spending separate from commercial off-hire value, then combine them only for the owner all-in economic view. Detailed steel-renewal acceptance, coating specification, class findings and survey scope remain subject to the vessel's approved documents and attending surveyor.
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