The I-beam, also called the H-beam, wide beam, W-beam, universal beam (UB), and rolled steel joist, is the shape of choice for structural steel builds.
I-beam, nke a na-akpọkwa H-beam, obosara, W-beam, beam zuru ụwa ọnụ (UB), na ihe a na-akpọ ígwè, bụ ụdị nhọrọ maka nchara arụpụta.