Flitch Beam Calculator to BS 5268-2:2002 & BS 449

This demo version is fixed at 1m clear span & 100mm bearing. The full version allows any size

Is the beam to be used as part of a domestic floor? (Limit allowed deflection to maximum of 14mm)

Yes

Will the beam be fully exposed to the elements? (Calculate as service class 3)

Yes

Automatically calculate suitable sizes

One steel web plate with timber member each side

One timber member with steel web plate each side

Two steel web plates with three timber members

Timber strength class

Steel grade

Enter a specific beam size

One steel web plate with timber member each side

One timber member with steel web plate each side

Two steel web plates with three timber members

Timber sections

Timber strength class

Depth ↕

Width (each) ↔

Width of each individual timber member,
16mm - 147mm

Steel sections

Steel grade

Depth ↕

Must be at least 10mm less than timber depth above to ensure loads and reactions apply to timber members

Width (each) ↔

Width of each individual steel plate,
6mm - 25mm

	Enter dimension to point load ('A' on the diagram) metres (can be zero)
Dead load	Imposed load	Enter a name for this point load
kN	kN
Does this load include a roof load?

Enter a name for this load Does this load include a roof load?
Dead load per square metre	Imposed load per square metre	Width of roof perpendicular to beam
kN/m²	kN/m²	metres

Flitch Beam Calculator