These racks are approximately 50'-0" high and use a automated retrieval system to load and unload 20'-0" lengths of piping
It will generally depend on what kind of pipe you will sore on the area:
Please have alook on the NFPA 13 if the building will be sprinklered and the NFPA 72 for fire alarm system and NFPA 101 for life protection system.
You might be outside the scope of NFPA 13,
Suggest a Fire Protection Engineer
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