TITLE BLOCKS

A title block in drafting serves as a standardized section of a drawing that contains important information about the drawing itself, such as the title, author, date, scale, and other relevant details. Its purpose is to provide essential information for easy identification, organization, and communication of the drawing. Here's what typically should be present in a title block:

• Title: The title of the drawing, which provides a brief description or name of the project, component, or system being represented.

• Drawing Number: A unique identifier assigned to the drawing, often used for referencing and indexing purposes.

• Revision History: A section that documents any revisions made to the drawing, including revision number, date, and a brief description of the changes. This allows users to track the evolution of the drawing and ensures everyone is working with the latest version.

• Author/ Drafter: The name or initials of the person who created the drawing. This helps identify the responsible individual for the drawing's content.

• Date: The date when the drawing was created or revised. It helps in tracking the timeline of the drawing's development and serves as a reference for its currency.

• Scale: The scale indicates the proportional relationship between the size of objects on the drawing and their actual size in the real world. It ensures accurate representation and measurement of objects.

• Sheet Number: If the drawing consists of multiple sheets, each sheet should have a unique sheet number to help organize and reference the different parts of the drawing set.

• Company or Organization Information: The title block often includes information about the company, organization, or project associated with the drawing, such as the company name, logo, address, and contact details.

• Notes and Disclaimers: Any relevant notes, disclaimers, or specific instructions related to the drawing may be included in the title block. This can provide additional guidance or clarify specific aspects of the drawing.

• Sheet Size: The size of the paper that the drawing is plotted on should be included for reference. 

The layout and design of a title block may vary depending on the drafting standards and practices specific to the industry or organization. However, the key objective is to present the necessary information clearly and consistently for effective communication and understanding of the drawing.

PAPER SIZE

In drafting, paper size refers to the specific dimensions of the paper on which the drawings are created or printed. The choice of paper size depends on various factors, including the nature of the project, the intended use of the drawings, and the drafting standards followed. Here are some commonly used paper sizes in drafting:

ANSI Sizes: The American National Standards Institute (ANSI) has established a series of standard paper sizes for technical drawings. The ANSI sizes include:

• ANSI A (8.5 x 11 inches)

• ANSI B (11 x 17 inches)

• ANSI C (17 x 22 inches)

• ANSI D (22 x 34 inches)

• ANSI E (34 x 44 inches)

These sizes are widely used in North America.

ISO Sizes: The International Organization for Standardization (ISO) has defined a set of paper sizes known as the ISO series. The ISO sizes include:

• A0 (841 x 1189 mm)

• A1 (594 x 841 mm)

• A2 (420 x 594 mm)

• A3 (297 x 420 mm)

• A4 (210 x 297 mm)

The ISO sizes are commonly used in many parts of the world, including Europe and Asia.

Architectural Sizes: For architectural drawings, specific paper sizes are often used. The most common architectural size is 24 x 36 inches, also known as Arch D. Other architectural sizes include: 

• Arch A (9 x 12 inches)

• Arch B (12 x 18 inches)

• Arch C (18 x 24 inches)

• Arch D (24 x 36 inches)

• Arch E (36 x 48 inches)

Custom Sizes: In addition to standard paper sizes, drafting may involve the use of custom or non-standard paper sizes based on specific project requirements. These custom sizes are often used for large-scale drawings, specialized applications, or unique design needs.

When selecting a paper size for drafting, it's important to consider factors such as the complexity and scale of the drawing, the level of detail required, and the available printing or reproduction options. Additionally, it's essential to adhere to the relevant drafting standards or guidelines prescribed by the industry or organization to ensure consistency and compatibility with other drawings and documents.