Manchester is easily accessible via train from the rest of the UK, with services from London taking just over two hours on Virgin Trains.
If you're flying into Manchester, you can reach the city centre by boarding either a Northern Rail or First TransPennine Express service into Manchester Piccadilly. This should take approximately 15 minutes and cost around £5. Alternatively, you can take Tram line Met6 into the centre from the airport, however, this would take around 40 minutes.
Store Street warehouse is located just a few minutes walk from Piccadilly Station, where most rail services will arrive into.