Marine Orders - Part 43: Cargo & Cargo Handling—Livestock, Issue 6
24Cattlestrength of pen & stall fittings
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24 Cattlestrength of pen & stall fittings
24.1 Subject to 24.4, rails and stanchions forming a fore and aft boundary of a cattle pen must be capable of withstanding a load per metre length determined by the application of Formula 3, uniformly distributed up to the height of the top of the uppermost rail the centre of which is at a height of not more than 1.40 metres above the pen floor.[35]
Formula 3
F = 3336 B (0.574 + 0.0252 Z) newtons per metre length
where: F = load per metre length of boundary;
B = maximum breadth of pen, in metres; and
Z = the vertical distance from a point 0.75 metre above the pen floor to the ship's water-line corresponding to the anticipated lightest load, in metres.
24.2 Rails and stanchions forming a boundary of a cattle pen, other than a fore and aft boundary referred to in 24.1, must be of substantially the same method of construction and of substantially the same scantlings as determined to be required for the fore and aft boundaries.
24.3.1 Subject to 24.4, any two-thirds of the area of the floor of a cattle pen must be capable of withstanding 100 per cent of the floor load, determined by the application of Formula 4, uniformly distributed over the area.