Scantling

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Scantling is a measurement of prescribed size, dimensions, or cross sectional areas.

Shipping

In shipbuilding, the scantling refers to the collective dimensions of the various parts, particularly the framing and structural supports. The word is most often used in the plural to describe how much structural strength in the form of girders, I-beams, etc. is in a given section. The scantling length refers to the structural length of a ship.

In shipping, a "full scantling vessel" is understood to be a geared ship, that can reach all parts of its own cargo spaces with its own gear.

Timber and stone

In regard to timber the scantling is (also "the scantlings are") the thickness and breadth, the sectional dimensions; in the case of stone the dimensions of thickness, breadth and length.

The word is a variation of scantillon, a carpenter's or stonemason's measuring tool, also used of the measurements taken by it, and of a piece of timber of small size cut as a sample. Sometimes synonymous with story pole. The Old French escantillon, mod. chantillon, is usually taken to be related to Italian scandaglio, sounding-line (Latin scandere, to climb; cf. scansio, the metrical scansion). It was probably influenced by cantel, cantle, a small piece, a corner piece.

References

•  This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). Encyclopædia Britannica (11th ed.). Cambridge University Press 
• Oxford English Dictionary