In order to achieve a proper and successful installation you must leave an expansion gap between the installed planks and the wall. ... If the proper expansion gap is not left during installation, and the planks on the sides push up against the wall, the pressure will cause planks elsewhere in the room to buckle.

Do you need spacers for vinyl plank flooring?

Click-Lock vinyls need an expansion gap to expand and contract as a floating floor. Use shims or spacers along the perimeter walls. Do check your subfloor with a level. Lumps and dips are hard to see with the naked eye.

Is 1 set of planks enough?

As a general guideline, Doug Sklar, a certified personal trainer and founder of PhilanthroFIT in New York City, recommends striving to do three sets of up to 60 seconds. “It's OK to start with shorter sets and work up to 60 seconds,” he says. Plus, shorter planks can still give you a solid workout, Sklar says.