consumed dramatically. >> reporter: building a warehouse like this takes at least nine months, start to finish. and time is just one problem. >> material costs are up exponentially. so steel, the structural steel we see in the warehouses up 260% since january. and it's not just steel, it's roofing tear, it's pre-cast concrete, the major components that go in. >> reporter: warehouse executives can't find workers fast enough. how many more people do you need to hire to get more of this stuff out the door? >> we can probably hire 150 people today. there is sa lot of added pressure on us. >> reporter: and the start and stop of shipping delays only adds to the stress. >> the reality is you have a day where 20 containers show up. >> reporter: a literal logistical nightmare? >> definitely. yeah. that's what we're here for. >> reporter: keeping the supply chain moving the best they can. jolene kent, nbc news, fontana, california. california. still wow... that's so nice!