TERRIBLE, TERRIBLE DOORS AND CUSTOMER SERVICE DO NOT BUY!
If I could leave one star, I would. These doors come with cover splines which are supposed to be glued to the doors. Glueing them in place does not work and the splines fall off repeatedly. Whilst the doors might be "treated with a water-repellent system for long-term stability and durability" this is compromised when the splines come off and pulls the coating off too. They are not fit for purpose.
I've been trying to resolve this with Travis Perkins since June and have had draughty and unsightly doors for the whole time.