Vessels
Timber construction and survey requirements
| Construction | What underwriters focus on |
|---|---|
| Carvel planked | Caulking condition, plank fastenings, seam movement when dried out |
| Clinker / lapstrake | Land fastenings, rivet condition, plank edges |
| Cold-moulded | Glue-line integrity, delamination, sheathing condition |
| Strip plank | Fastening corrosion, glue lines, sheathing |
| Plywood | Delamination, rot at fastenings, encapsulation condition |
Rot and deterioration exclusions
Rot, decay, worm, electrolysis, fastening corrosion and general deterioration are excluded in essentially every marine policy as gradual processes. The consequence matters: a sinking caused by a failed plank fastening may be covered as sudden damage, while the failed fastening itself is not — and an insurer may argue the whole loss was deterioration.
Wooden boat maintenance evidence
- A haul-out schedule you actually keep, with dates recorded
- Bilge condition and pumping arrangements, including alarms
- Fastening replacement history, especially on older carvel hulls
- Anode and bonding arrangements, and shore-power galvanic isolation
- Survey by someone who genuinely knows timber, not a generalist
- Photographs of the hull dried out, taken regularly
Australian timber vessel locations
Australia's timber fleet is concentrated in Tasmania and around traditional boatbuilding centres, where the shipwright skills and surveyor familiarity still exist. That concentration is worth knowing about: local repair capacity materially affects both insurability and the practical outcome of a claim.
Prepare your quote properly
Insurers price what they can verify. Work through the vessel-details checklist before you request quotes, so every quote you get is built on the same facts.
Frequently asked questions
Is rot covered by boat insurance?
No. Rot, decay and deterioration are gradual processes and are excluded in essentially every marine policy. Insurance covers sudden accidental damage; maintenance covers decay.
Are wooden boats harder to insure in Australia?
They are underwritten more cautiously and generally require a current survey from someone experienced with timber. Well-maintained wooden boats with documented haul-out and fastening history are routinely insured.
Related guides
- Classic Yacht Insurance Australia
- Osmosis, Corrosion and Boat Insurance
- Boat Insurance in Hobart
- Boat Insurance Exclusions Explained
- Pre-Purchase Survey vs Insurance Survey
- Steel Yacht Insurance in Australia
- Boat Insurance by Vessel Type