Storage changes can change requirements
Rack height, commodity type, packaging, storage arrangement and building use can affect fire-protection and code considerations. A layout that physically fits may still be unsuitable or non-compliant.
Exits and access are not storage
Emergency routes, fire equipment access and required clear areas must not be treated as overflow storage. Congestion planning should include a rule that these areas are never counted as usable capacity.
Sprinkler and fire-protection details are specialized
Required clearances, sprinkler design and commodity classifications can be technical and jurisdiction-specific. Generic web guidance is not a substitute for the authority having jurisdiction or qualified fire-protection professionals.
Build compliance into the project plan
Capacity projects should allow time for code review, permits, engineering and inspections where required. Treating compliance as an afterthought can delay a reconfiguration after equipment has already been ordered.
Practical questions
Should I use one utilization percentage for every warehouse?
No. Inventory profile, storage system, seasonality, staging demand, handling equipment and workflow can make the same percentage perform very differently in two facilities.
Can this guide be used to approve a rack or building change?
No. It is a planning resource. Structural, fire, building, accessibility and workplace-safety requirements must be established for the actual facility by the appropriate qualified parties and authorities.