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Canal Boat Fittings and Fixings
Canal Boat Fittings and Fixings
2 min read · Updated 2025-12-21
Canal Boat Fittings and Fixings
What this covers
The hardware that holds a boat together and makes it work day-to-day: stainless and brass bolts, screws and fasteners; mushroom vents and dorade boxes; portholes, windows and hatches; cleats, T-studs, dollies, fairleads and mooring rings; rubbing strakes and corner rubbers; chimney coolies and collars; door and hatch hinges, handles, locks and bolts; brass and stainless decorative work.
What to look for
- Marine-grade stainless (typically 316 for fasteners exposed to water, 304 acceptable inside) and solid brass for traditional fittings — not plated mild steel that rusts within a year.
- Sized correctly: window cut-outs, vent diameters and porthole bores have a few common standard sizes; substituting close-but-not-identical fittings causes leaks.
- For windows and portholes: glazed units that match boat vintage and aesthetic, with reliable seals and a clear position on replacement glass availability years later.
- Mushroom vents in the right size and number — the BSS specifies minimum ventilation areas relative to gas appliance and accommodation, and meeting these is non-negotiable.
- Hardware that can be rebuilt or re-keyed (better locks especially), not sealed-for-life cheap units.
- Red flags: zinc-plated steel fittings sold for marine use, decorative-only door bolts on cabin doors, plastic vents where steel or brass is wanted.
Common questions
304 or 316 stainless? 316 for anything exposed to weather and water; 304 is fine for indoor and lower-load applications. The price difference is small.
Brass or chrome-plated? Solid brass weathers gracefully and can be polished back. Plated items eventually pit and lose their finish.
Will any porthole fit any cut-out? Most portholes follow a few standard bore diameters but trim flange size and bolt-hole pattern vary. Always template before ordering.
Do I need a particular grade of fastener for the cabin? Stainless for any fastener exposed to weather; brass for decorative or where electrolytic compatibility with surrounding brass matters.
Mushroom vents — how many? BSS sets minimum free ventilation areas based on the appliances on board and the volume of the accommodation; check current BSS guidance for the specific calculation.
When you need this
Building or fitting out a boat, replacing failed hardware, upgrading window or porthole units, adding a hatch or vent, after a break-in (lock and bolt upgrade), at re-paint when you want to refit polished brass.