Dull Paint Question – Which is best white matt?

I am painting our hallway next week. Its a very very big room 5m x 6m x 3.5m

On the stairs I previously used Dulux Trade Matt Supermatt. It went on very nicely, but when it dries you can almost see the lines of where its been rollered on, even keeping a wet edge.

Are there any better alternatives? I can currently get the supermatt for £40 for 10l

Ta

Johnstone’s, from one of their trade centres.

^ That. Get the heavy-duty scrubbable stuff.

Johnstone’s Covaplus