boatbuildlog

Zip · new build

Glen-L Zip — garage runabout

by Example Logs · boatbuildlog.com

An example log of a plywood-on-frame runabout, part-built. Shows what an in-progress log looks like when it is kept honestly.

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.
5
Entries
51
Hours
133
Days elapsed
5
Photos
Sep 2025
Started
Plans & Lofting 6 h

Plans and patterns arrived

Full-size patterns for the frames. Spent an evening just reading the drawings before cutting anything.

Worth doing: read the whole manual end to end first. There are decisions in step 40 that change what you do in step 4.

Illustration — example log, not a photograph.
Illustration — example log, not a photograph.
Strongback & Molds 10 h

Frames cut, strongback set up

All frames cut and assembled, set up on the building form and checked for level and square.

Spent longer levelling the strongback than building the frames. Everything downstream depends on it being true.

Illustration — example log, not a photograph.
Illustration — example log, not a photograph.
Hull Panels 12 h

Battens and fairing the frames

Chine logs and sheer battens in. Then faired the frames so the plywood lands flat.

A batten laid across the frames shows every high spot. Plane them down before the ply goes anywhere near.

Illustration — example log, not a photograph.
Illustration — example log, not a photograph.
Hull Exterior 14 h

Bottom on

Bottom plywood on, screwed and glued. A second pair of hands helps here.

Had one panel spring back overnight where I had not used enough screws. Refastened before the epoxy fully cured.

Illustration — example log, not a photograph.
Illustration — example log, not a photograph.
Fairing & Sanding 9 h

Turned her over

Rolled the hull. Genuinely nerve-wracking and genuinely worth photographing.

Next: fairing, then glass. Slower going now that the evenings are cold — the shop needs an hour of heat before epoxy is workable.

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