ASME Y14.1:2020 pdf download.DRAWING SHEET SIZE AND FORMAT.
4.2 Drawing Sheet Sizes
4.2.1 Metric Drawing Sheet Sizes
(a) Elongated Sheet Sizes. Elongated sheet sizes are formed by combination of the dimensions of the width of an A-size sheet and the length of another A-size sheet. Elongated sheet sizes are designated in the format AX.Y, where X is the width and Y is the length. For example, size Al.O equals size Al width and size AO length. Elongated A4 sheet sizes do not exist because they are equivalent to A3 sizes. The structure of the sheet size system is shown in Figure 4-6.
(b) Segment Compatibility. The minimum and maximum lengths shown for elongated drawing sizes are compatible with segment frame size requirements. See Figure 4-2.
4.2.2 DecimaL-Inch Drawing Sheet Sizes
(a) Drawing Sheet Sizes. Drawing sheet sizes indicated in Tables 4-3 and 4-4 are multiples of the A size except for F, H, and K sizes.
(b) Elongated Drawing Sheet Sizes. Elongated drawing sheet sizes are drawing sheets that, due to their lengths, may be rolled when the drawing is printed on a nondigital medium, e.g., paper or velum. The lengths shown have been selected in recognition of segment frame size requirements. Segments of length are based on multiple zone increments.
(c) G-Size Drawing Sheets. The lengths and increment size of the G-size format will permit full size copies to be bound in 8.5 in. x 11 in. books or flIed in loose-leaf notebooks. See Table 4-4 and Figure 4-4.
(d) H-, J-, and K-Size Drawing Sheets. Segments of lengths are based on multiples of 11 in.
4.3 Computer-Generated Drawings
When copies of computer-generated drawings are produced, sheet sizes may be increased to compensate for output device requirements, providing the copies can be trimmed to the sheet sizes specilled in this Standard. However, the drawing format and content shall conform to the requirements of this Standard. The continuous lines and widths of lines shown in this Standard to form the various features (i.e., the required blocks, columns, and margins) do not have to be used. However, the format sizes, the relative positions of the data headings, and the data contents shall conform to the requirements of this Standard. The data headings and contents created by data processing systems shall be legible when reproduced.
5 FORMATS
5.1 Drawing Sheet One
Drawing sheet one formats shall include the title block from Figure 5-1 or 5-2 and may be used for all sheets of a multiple-sheet drawing. Drawing sheet one formats are defined in Figures 4-1 through 4-5.
5.2 Continuation Sheets
Continuation sheet formats for second and subsequent sheets of a multiple-sheet drawing shall include the title block from Figure 5-3 or 5-4. See para. 6.3 for minimum title block information requirements. The title blocks shown in Figures 5-1 and 5-2 maybe used. Drawing continuation sheet formats are defined in Figures 4-1 through 4-5. All sheets of a multiple-sheet drawing should be the same sheet size.
5.3 BLocks
The sizes of blocks specified herein are minimum size and may be increased to accept size and lettering on drawing formats in accordance with ASME Y14.2. For block content, see para. 6.2. Additional blocks may be added.ASME Y14.1 pdf download.