below the step where the side ropes are siezed together. The step fixture shall be designed so that it stays in place when the ladder is rolled or the step is turned.

　

Figure 2 - Typical ladder step showing alternative hole and slot designs for side ropes.

　

4.8　The clear space between the side ropes on one side of the ladder and those on the other side shall be at least 400 mm. This distance shall be uniform throughout the length of the ladder. See Figure 2.

　

4.9　Each side rope shall be arranged so that, when the ladder is in use along the vertical hull of a ship, the side rope can not come in contact with the ship's side.

　

4.10　The spacing from the top of one step to the top of the next step shall be 330 ± 20 mm, and shall be uniform throughout the length of the ladder. See Figure 3.

　

4.11　Each step shall be of one-piece construction. The ladder steps shall be either wood or resilient plastic or rubber material.

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