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Bile tO TABLES FOR THE BUILDING OF STEEL VESSELS. PRIMARILY INTENDED FOR DOUBLE-BOTTOM STEEL VESSELS. FOR IRON VESSELS, SEE SEC. 1, PAR. 3. SECTION 7. PRINCIPAL DIMENSIONS. 1. The measurement of principal dimensions will be taken as follows: LENGTH. 2. The length to be taken from the forward side of the stem to the after side of the sternpost, measured on the deep load line, calculated at 2% inches of free- board to each foot moulded depth of hold. BREADTH. 3. The breadth to be taken at the widest part of the vessel outside of frames. DEPTH. 4. The depth to be the moulded depth taken from the upper side of the garboard strake to the upper side of the upper deck beam at midships, and mid- length in all vessels (except awning deck vessels). 5. In vessels fitted with awning decks, the depth for scantling requirements is to be taken from the top of the flat plate keel or garboard strake, to the under side of the deck next below the awning deck at midship and midlength except for equipment tonnage where it will be measured in accordance with the preceding paragraph. PROPORTIONS. 6. The proportions covered by the rules and tables are for vessels whose beam to length is not less than six or more than ten, and whose depth to length is not less than nine or more than sixteen. Vessels exceeding these proportions to be specially considered. 23 NAME OF DECKS. ONE, TWO AND THREE-DECK VESSELS. SPAR-DECK VESSELS. UPPER DECHA. ih w S£COVDB OLECHA. UPPER DECK BECOVD. asck- TAHIRAO. DECHA. THI/AO QDECAs 2 Jes AWNING-DECK VESSELS. SHADE-DECK VESSELS. os eect et 2 1k. AWNING DECK. SHAOE DEC, aS GPPER, DECI. SRC ER: ELK Sécowe. DECK. SE€Ccowo BECCA. -- mo Cie cl Aste.