What is the load capacity of 4 inch schedule 40 pipe columns?

The load capacity of 4-inch Schedule 40 pipe columns can vary based on factors such as the length of the column, the type of load (axial, lateral), and the material properties. Generally, a 4-inch Schedule 40 steel pipe has an outer diameter of 4.5 inches and a wall thickness of 0.237 inches, allowing it to support approximately 7,000 to 10,000 pounds under axial load for short columns. For precise calculations, it's essential to consult engineering tables and consider safety factors, local codes, and specific application requirements.