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KNOWN PROBLEMS · POWERBOATS

Grady-White problems: what to check on a used Grady-White

UPDATED 8 NOVEMBER 2026 · 3 FINDINGS · 3 SOURCES

Known problems on used Grady-White boats and where to look: plywood transoms and stringers on some models, aluminium fuel tanks that can't be reached, and screws through the foredeck, from a surveyor's reviews and the builder's construction.

AT A GLANCE
Grady-White
BUILDER
Grady-White, a North Carolina builder of outboard fishing boats
COVERS
Plywood transoms and stringers on some models, foam cored structure on others; aluminium fuel tanks; the 272 Sailfish
DOCUMENTED BY
Surveyor David Pascoe's reviews, Soundings on how the boats are built, and BoatTest
CHECK FIRST
Moisture and sounding on the transom and stringers; fuel tank and its hatch covers; the deck joint; foredeck fasteners

Grady-White has a reputation for strong, stiff sea boats, and Soundings says the company builds them with proven techniques. The problems to check follow from those methods: plywood in the structure on some models, and aluminium tanks that live under deck hatches.

Plywood transoms and stringers

Soundings describes stringers cut from Perma Panel pressure treated plywood and glassed in while the hull is in its mould, with closed cell foam sprayed between them. Transoms are several layers of the same plywood laminated with fibreglass, with an aluminium brace to spread engine torque. Larger Gradys got foam cored fibreglass stringers.

Some models have no wood at all. BoatTest's review of the Fisherman 216 says it has "no wood in the structural components", with stringers and frames of fibreglass over foam and a transom cored with high density foam.

So the transom on a Grady can be plywood or foam, depending on model and year. Plywood rots once water gets in through a fastener or fitting.

Where to look. Meter and sound the whole transom, inside and out, paying most attention around engine bolts, transducer screws and trim fittings. Push on the engines to check for transom flex. Lift the hatches to see the stringers where you can, and meter them.

Fuel tanks

Grady-White fits painted aluminium tanks and, according to Soundings, doesn't foam them in, so moisture isn't trapped against the metal. On a 272 Sailfish, Pascoe found neither tank could be reached for inspection, although there was a removable deck section.

Where to look. Every hatch and inspection cover over the tank for seals and standing water. As much of the tank top and straps as you can see for white corrosion and pitting. On boats where the tank can't be seen, say so in the report.

Deck joint and decks

Soundings describes a shoebox joint: the deck over a hull flange, held with stainless screws and blind fasteners, adhesive sealer and sealant, with the rub rail screwed over it. On the 272 Sailfish, built from 1995, he found the foredeck held down with four screws through the deck, which risks water in the core, and a battery charger mounted in the wet bilge.

What to check on a Grady-White

Area What to look for Source of the concern
Transom Moisture, soft spots, flex under engine load Soundings on plywood transoms
Stringers Moisture and rot on plywood stringers Soundings construction notes
Fuel tank and hatches Access, corrosion on the tank top Pascoe, 272 review
Foredeck fasteners Water in the deck core at screws Pascoe, 272 review

Writing it up

"Transom, around the upper engine bolts: moisture readings well above the dry reference and a dull sound on tapping over about 300 x 200 mm. Plywood core suspected wet. Recommend core samples to confirm the extent, and repair of the transom core before the engines are next run hard." Give the readings and the reference so the yard can check them.

Findings to look for on a Grady-White

Each page shows how the defect is found, what decides the grade and example findings written up at A, B and C.

HULL AND STRUCTURE

Wet transom core

How water gets into a cored transom, how a surveyor finds it with a hammer and a moisture meter, what the sounds and cracks mean, what repair involves and three example findings graded A, B and C.

How to find and write it up
ENGINE AND FUEL

Fuel tank corrosion

Why aluminium fuel tanks corrode under foam, straps and bilge water, what a surveyor can and can't see, what replacing a tank involves and three example findings graded A, B and C.

How to find and write it up
HULL AND STRUCTURE

Wet deck core

How water gets into a cored deck, how a surveyor maps it with a moisture meter and a hammer, which readings to trust, what recoring costs and three example findings graded A, B and C.

How to find and write it up

Frequently asked

Do Grady-Whites have wood transoms?

Soundings describes Grady-White transoms built from layers of pressure treated plywood laminated with fibreglass, and plywood stringers glassed into the hull. BoatTest's review of the Fisherman 216 says that model has no wood in its structure, with foam cored stringers and transom. Which one you have depends on model and year, so meter and sound the transom on any Grady.

What goes wrong with Grady-White fuel tanks?

The tanks are painted aluminium. Soundings says Grady-White leaves them unfoamed to avoid trapping moisture. On a 272 Sailfish, Pascoe found neither tank could be reached for inspection.

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