What Is a Door Core

Hollow core doors are not completely hollow, but rather house a cardboard honeycomb inside. Hollow cores are lightweight and easy to transport and install. They can be less susceptible to expansion and contraction than a solid wood door, but that is where the advantage ends.

What hollow core door means?

Despite their name, hollow core doors aren’t completely hollow inside. They have a honeycomb cardboard interior that’s wrapped by veneer or fiberboard. These doors are easy to install, lightweight, and cost-effective. They’re so lightweight that one person can easily handle and install them.

How can you tell if a door is hollow or solid core?

An average hollow-core door usually weighs around 25 to 30 pounds, so if you can lift or swing the door with minimal effort, it is probably hollow-core. Solid-core doors are usually 25 to 30 pounds heavier than their hollow counterparts, so if the door has some heft to it, it’s probably solid-core.