which of the following decision is mainly a warehousing decision

the ideal quanitity at which to reorder items
whether to shib by rail or boat
the amount of inventory to order
the best locations for storage facilities

The best locations for storage facilities is mainly a warehousing decision.

The main warehousing decision among the options provided is "the best locations for storage facilities". This decision involves determining the optimal locations to store inventory and setting up storage facilities to ensure efficient and effective operations.

The decision that is mainly a warehousing decision is "the best locations for storage facilities."

To arrive at this answer, let's go through each option and analyze its relevance to warehousing:

1. The ideal quantity at which to reorder items: This decision is more closely related to inventory management and supply chain planning rather than warehousing specifically. It aims to determine the optimal quantity of items to be ordered based on factors such as lead time, demand, and storage capacity.

2. Whether to ship by rail or boat: This decision falls under transportation logistics rather than warehousing. It involves choosing the most suitable mode of transport for goods based on factors such as cost, distance, speed, and nature of the shipment.

3. The amount of inventory to order: Similar to the first option, this decision relates more to inventory management and supply chain planning. It entails determining the appropriate level of inventory to maintain based on factors such as demand forecasts, desired service levels, and lead times.

4. The best locations for storage facilities: This decision is directly related to warehousing. It involves selecting the optimal sites for storage facilities based on factors such as proximity to suppliers and customers, transportation infrastructure, labor availability, land costs, and market demands. Choosing the right locations can significantly impact the efficiency and effectiveness of warehousing operations.

Therefore, out of the given options, "the best locations for storage facilities" is primarily a warehousing decision.