From the Airport:
If you're coming from the airport you can take the Aircoach straight from the airport to Westmoreland street, then jump on the Number 40 'Liffey Valley' bus from Dame Street - this will probably take around 1 hour in total on public transport with these 2 buses. Alternatively you can catch a cab in about 15 mins from the airport to the depot directly.
From the City Centre: Get off at Cherry Orchard Industrial Estate, walk down the street between the petrol station and the LIDL supermarket and in about 300 metres take a left and you will see all the (Wicked) vans. You have arrived!