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African straight grained hardwood timber durable for marine use.

Related Terms

POPPET

1. One of the timber and steel structures supporting the fore and aft ends of a ship for launching from sliding ways. 2. A spring-loaded ball engaging a notch; a ball latch.

POLING BOARD

A timber plank driven into soft soil to support the sides of an excavation.

PILE BENT

A row of timber or concrete bearing piles with a pile cap forming that part of a trestle which carries the adjacent ends of timber stringers or concrete slabs.

NEEDLING

Underpinning the upper part of a building with horizontally placed timber or steel beams.

HOWE TRUSS

A truss for spans up to 80 feet (24 meters) having both vertical and diagonal members; made of steel or timber or both.

HEADING JOINT

1. A joint between two pieces of timber which are joined in a straight line, end to end. 2. A masonry joint formed between two stones in the same course.

ADZE

Shipwrights tool used to face timber (cut surface to shape).

BACKBONE

The stem, keel, stern post & transom set up for timber building.

BALK

A square length of timber substantially dimensioned (e.g.100- 300mm)

ASHCROFT SYSTEM

Timber boat building technique using two layers of overlapping diagonal strip planks with glue barrier between. High strength and low weight.

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