Vinyl Flooring Direction Change. It locks in by hand either direction I then use a long tapping block and kinda give it a light slap without a hammer on the long side just to make sure its engaged good and tight. So you may choose to lay flooring towards the window area or entryway of your space.
Rule of thumb is to run the planks parallel to the longest wall of the room. Vinyl doenst like underpad you can use a professional grade vinyl underpad SPECIFICALLY designed for vinylwhich is very very expensive. If you have a width wise open concept run the flooring parallel to the longest walls.
If you want the flooring to run the length of the living room.
Done in a higher end type of installation this change. Which in that case would cause a change in pattern. I am looking to install some Mannington Adura LVP Locksolid myself and the layout of my house is that there is a long hallway that is perpendicular to the length of the other rooms I want done. Vinyl flooring is a great way to change the appearance of a room without spending too much money.