The hidden costs of in-house fulfilment often eat into margins far more than business owners expect. Warehouse Rent and OverheadsThe first major cost is space. In-house costs might look like this:Warehouse rent + utilities: £2,500/monthThree warehouse staff: £6,000/monthSoftware licences: £500/monthPackaging + consumables: £750/monthInsurance, maintenance, misc. Beyond the Numbers: Focus and FlexibilityThe real benefit of working with a 3PL isn’t just cost savings — it’s focus. Warehouse rent, staff wages, software licences, and equipment soon outweigh the benefits of control.