a Stiff SubstrateThe most common underlayment for installing vinyl plank flooring is plywood. As an excellent flooring underlayment for a wide range of subfloors, 4×8-foot plywood sheets, typically 14 to 12 inches thick can be used.

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Does vinyl plank flooring require underlay?

Hard, thin underlay is needed because vinyl planks are soft. Installing vinyl plank over a soft product makes for an unstable floor that is more likely to sustain damage, including punctures or tears, over time.

How thick should underlayment be for vinyl flooring?

For vinyl floors, how thick of an underlayment layer is recommended? Underlayment for vinyl plank flooring is typically 2 to 3 millimeters thick, with some going as thick as 6 millimeters and the thinnest being 1 millimeter.

What is the thickest underlayment for vinyl plank flooring?

Vinyl subfloors are typically 1 to 1.5 mm thick. Underlayment offers several advantages when working with click lock vinyl that is 4mm or thicker: It may be able to smooth out some of the imperfections in the subfloor. It will give the floor a softer, more cushioned feel.