What type of dimensions can generally be read from the bottom of a print?

Unidirectional dimensions are indeed the type of dimensions that can generally be read from the bottom of a print. This dimensioning style ensures that all measurements are oriented in a consistent manner, allowing for readability from a specific viewpoint—often this is from the bottom of the print, where the dimensions are displayed horizontally.

Unidirectional dimensions present measurements with the dimension numbers facing the same direction, which is usually towards the operator, to enhance clarity. This approach avoids confusion and makes it easier for welders and fabricators to interpret the dimensions without needing to flip the print.

Other dimension styles, such as horizontal or vertical dimensions, might not consistently align with this readability principle. Multidirectional dimensions, by contrast, involve dimensions oriented in multiple directions, making them less straightforward to read from a single viewpoint.