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If a timber beam has dimensions of 225 mm by 75 mm and holds a UDL of 3.5 kN/m over a span of 4m. And If Young’s modulus for the timber is 10 kN/mm2, how much will the beam deflect?

A joist bending moment calculation?

A joist has section modulus 187.5 x 103 mm3 and the span is 3.8 m. It carries a Uniformly Distributed Load (UDL) of 1.7 kN/m.

What is the maximum bending moment for the joist