boatbuildlog

13 Sport · restoration

Boston Whaler 13 — transom and foam

by Example Logs · boatbuildlog.com

An example log of the job every old Whaler eventually needs. Shows a restoration where the boat is structurally sound but waterlogged.

This is an example log, not a real project. It exists to show what a useful build log looks like — dated entries, tagged to a step, with hours recorded and mistakes written down. The technique in it is illustrative; don’t follow it as instruction, and check anything structural against your designer’s drawings. Its hours are excluded from the site’s median figures.
4
Entries
31
Hours
98
Days elapsed
4
Photos
Jan 2026
Started
Survey & Assessment 3 h

Weighed it

The give-away on these is weight. Dry hull should be around 320 lb; this one is well over.

Water in the foam, then. Wrote down the weight so I can measure progress by it later.

Illustration — example log, not a photograph.
Illustration — example log, not a photograph.
Teardown 6.5 h

Console and rails off

Everything unbolted and labelled. Photographs of every fastener pattern before removal.

Illustration — example log, not a photograph.
Illustration — example log, not a photograph.
Transom 12 h

Transom out

Cut the inner skin, dug out the old core. Wet, black, and exactly as bad as expected.

The one everybody dreads, and it deserves the reputation. Take the full weekend.

Illustration — example log, not a photograph.
Illustration — example log, not a photograph.
Hull & Plank Repair 9 h

Drying the foam

Drilled a grid of drain holes and left it in the sun for six weeks, weighing it fortnightly.

Still to do: new core bonded in, reglass, then fairing and paint.

Illustration — example log, not a photograph.
Illustration — example log, not a photograph.