What item is recommended to assist in loading casketed human remains into the cremation unit?

The use of a 2½ inch diameter cardboard roller is recommended because it provides a practical means to facilitate the loading of casketed human remains into the cremation unit. The dimensions of the roller strike a balance between being robust enough to support the weight of a casket while still being narrow enough to allow for easy handling and maneuverability. This specific size ensures that the roller can adequately bear the casket load without causing any damage or instability that could occur with a larger or smaller roller.

Given the process of transferring human remains to the cremation unit, the roller's design allows for a smoother transition and reduces the risk of accidents or injuries during the loading process. The cardboard material is also beneficial as it is light and minimizes resistance when moving the casket, making the overall operation more efficient and safer for the staff involved.

In contrast to other options like a wooden ramp or a mechanical lift, which may be more complex and require additional handling or setup, the cardboard roller offers a straightforward, effective solution that aligns with the specific needs of the cremation process. This simplicity is crucial in practical settings where efficiency and safety are paramount.