Why the maximum width of a magnetic whiteboard is 120 CM?

Today, the editor will explain why the maximum width of traditional magnetic whiteboard is usually 120 centimeters instead of a larger size?

Traditional magnetic whiteboard is a common auxiliary tool in offices and classrooms, used for writing, drawing, and displaying information. However, you may wonder why the maximum width of traditional whiteboards is usually limited to 120 centimeters? This is because the raw material for making whiteboards - writing iron plates - is usually rolled out of the factory, with a maximum width of 120 centimeters. The following picture shows the rolled iron plate to be processed.

Writing iron plate is a common whiteboard surface material, which has the characteristics of smoothness and easy wiping, suitable for writing and projection. When making magnetic whiteboards, manufacturers usually cut rolled iron plates with a maximum width of 120 centimeters into different lengths for use in making whiteboards. Due to production process and material limitations, the maximum width of the writing iron plate is generally 120 centimeters.

Due to the maximum width limit of 120 centimeters for writing iron plates, the width of traditional whiteboards is usually based on this standard. However, the length of the whiteboard can be customized according to needs, usually up to 180 centimeters, 240 centimeters, or even longer, to meet the needs of different scenarios.

Of course, there are also whiteboards on the market with a length and width exceeding 120 centimeters. The surface of these whiteboards is not actually a complete iron plate, but two or more iron plates spliced together; This type of whiteboard often has discontinuous marks at the interface of the iron plate, making it more prone to bulging, loosening, and warping. The writing effect is not as good as the entire iron plate.

In summary, the design specification of a traditional whiteboard with a maximum width of 120 centimeters is determined by the production process of its raw material, the writing iron plate. Although this restriction exists, it does not prevent whiteboards from playing an important role in the fields of office and teaching.