# Common Warehouse Design Mistakes, and How to Avoid Them
Rushing a warehouse fit-out costs a great deal later. These are the mistakes we see most often in the field.
## Mistake 1: Skipping the flow study before choosing racking
Many start shopping for racking before mapping the flow of goods. The result: tangled routes that stretch handling time.
**The fix**: map the process from the moment goods arrive to the moment they ship, then design the layout around it.
## Mistake 2: Ignoring future expansion
Designing the warehouse for day-zero capacity means redesigning it two years later.
**The fix**: reserve 20–25% of design capacity for future expansion, using racking that can be extended.
## Mistake 3: Aisles that are too narrow
The urge to maximise storage area sometimes produces aisles that do not allow safe handling.
**The fix**: decide the forklift type first, then calculate aisle width from it.
## Mistake 4: Inadequate lighting
The picking area does not need one lighting level but several, according to the activity.
**The fix**: use 200–500 lux for general areas and 500+ lux for precision picking zones.
## Mistake 5: Overlooking height clearance
Vertical use is one of the biggest efficiency factors — but not without knowing the forklift's lift height.
**The fix**: ask for the forklift's maximum lift height and leave a 50 cm safety margin below it when setting maximum rack height.
## Mistake 6: Buying racking with no load certification
Some cheap imported racking carries no load certificates.
**The fix**: request a documented load certificate for every racking system, and confirm the safety factor.
## Mistake 7: Designing without a specialist
Saving on engineering consultancy fees can cost you ten times as much later.
**The fix**: RAFY offers a free assessment visit to your warehouse.
Warehouse planning
Common Warehouse Design Mistakes, and How to Avoid Them
Seven mistakes many managers make when planning their warehouses, and how simple engineering decisions can avoid them.