The Series-n° Z is laid down.
Laying down:
This is the enlarging of the drawing to the full size of the boat, and is necessary in all boat and ship building. For large vessels, the drawing is made on the floor of the "mould loft," either in one continuous length, or in the case of very long vessels, in two portions overlapping each other. For small work a wide board will answer, 16 ft. long and 2 ft. wide, or less, according to the size of the boat.

On this common roll drawing paper is laid and tacked, and it is divided off, as was described for the detail drawing, except that the half breadth plan will now overlap the sheer plan to save room. Referring now to the detail drawing, a "table of offsets" is made. A sheet of paper is ruled in vertical columns, one for each square station, and also in horizontal lines as follows. In this table is set down the heights above base line of the stem, rabbet and sheer, and the half breadth at the deck, on each waterline, and on the diagonals.



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Note added at 11 mins (2004-01-30 06:08:58 GMT)
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Link:http://dragonflycanoe.com/stephens/laying_down.html