What are the exact outer and inner dimensions of the 180 - sized square - tube used in the construction of this floor basketball stand?

The 180mm square tubing used in basketball hoops typically has external dimensions of 180mm x 180mm. Internal dimensions vary depending on wall thickness, commonly ranging from 3mm to 5mm, corresponding to internal dimensions of approximately 174mm x 174mm to 170mm x 170mm. Here's a detailed explanation:

External Dimensions: The external dimensions of a 180mm square tubing are typically 180mm x 180mm, meaning each side of the tubing is 180mm.

Internal Dimensions: Internal dimensions depend on the wall thickness of the tubing. Common wall thicknesses range from 3mm to 5mm, therefore, the internal dimensions might be:

With a 3mm wall thickness, the internal dimensions are approximately 174mm x 174mm (180mm - 2 x 3mm).

With a 5mm wall thickness, the internal dimensions are approximately 170mm x 170mm (180mm - 2 x 5mm).

Dimensions in Practical Applications: In practical applications, the dimensions of the basketball hoop square tubing may be adjusted due to differences in manufacturers, design requirements, or safety standards. For example, some basketball hoops may use thicker walls to improve structural stability, which would reduce the internal dimensions accordingly.