Estimate vessel dry docking cost, shipyard spending,
hull coating, steel renewal, repairs, surveys,
dock-day charges and off-hire exposure. Use Advanced
mode to build a detailed drydock budget from vessel
dimensions, unit rates and individual work packages.
Yard Budget
Dock charges, coatings, steel, repairs, surveys and supporting services
Off-Hire
Model the commercial value of time the vessel is unavailable
Overrun Exposure
Stress test drydock duration and unexpected repair scope
Drydock Period & Yard Charges
Build a quick drydock estimate from the planned
yard stay and major project cost buckets.
days
$
/day
$
Major Work Packages
Enter estimated or quoted amounts for the main drydock work.
$
$
$
$
$
$
Commercial Exposure
Keep shipyard cash cost separate from lost
earnings so both numbers remain visible.
$
/day
days
%
%
Vessel & Docking Plan
Dimensions can be used to estimate underwater
hull coating area when a measured area is unavailable.
Enter the planned drydock duration and project
costs to calculate shipyard budget, contingency,
off-hire exposure and total economic drydock cost.
All-In Economic Drydock Cost
—
Shipyard cash budget plus modeled off-hire exposure
Shipyard Cash Budget
—
Direct project cost plus contingency and modeled tax
Direct Project Cost
—
Contingency Reserve
—
Tax / Surcharge
—
Off-Hire Economic Cost
—
Planned Dock Days
—
Economic Off-Hire Days
—
Cash Cost / Dock Day
—
Economic Cost / Off-Hire Day
—
Hull Coating Area
—
Hull Coating Program
—
Steel Renewal Cost
—
Project Labour Cost
—
Drydock Cost Breakdown
Project Cost Detail
Before contingency and tax
Work Package
Estimated Cost
Share of Direct Cost
Drydock Budget Summary
Overrun Sensitivity
Repair scope vs drydock duration
Repair Scope \ Days
-20%
Base
+20%
Scope growth can dominate the final drydock bill:
steel discovered after blasting, machinery opened
for inspection, class findings, coating preparation
and schedule delays can move actual cost materially
above the initial specification. Use the contingency
and sensitivity sections to test that exposure.
Cost method:
direct project cost includes dock charges and entered
work packages. Contingency is applied to direct project
cost, then the entered tax or surcharge is applied to
direct cost plus contingency. Off-hire is calculated
separately from shipyard spending as daily lost
contribution multiplied by planned drydock days plus
any additional off-hire buffer.
Planning estimate only.
Actual vessel dry docking cost depends on ship size,
condition, yard location, specification, class findings,
coating system, steel renewal, machinery inspection,
labour rates, port charges, taxes, exchange rates and
unexpected repairs. The hull-area calculation is a
preliminary geometric estimate rather than a coating
specification or measured surface area. Off-hire value
should reflect the owner's actual expected contribution
or commercial opportunity cost.
