The difference between solid core vs hollow core doors comes down to what is inside the door. Solid core doors have a dense, wood-fiber center that blocks sound and feels heavy. Hollow core doors have a lightweight honeycomb structure inside, which makes them cheaper and easier to install. Solid core is better for bedrooms and bathrooms. Hollow core is better for closets and pantries.
When you are picking interior doors for your home, the choice usually comes down to two options.
Solid core or hollow core.
They look almost the same from the outside. They cost very different amounts. And they perform very differently once they are installed.
If you are trying to figure out solid core vs hollow core doors and which one fits your project, here is what to know before you buy.
Solid core doors have a dense center filled with engineered wood material.
That core is usually made of wood fibers, particleboard, or MDF. The outside is covered with a smooth or molded surface that you can paint or stain.
Solid core doors feel heavy when you carry them. They feel substantial when you close them. And they sound quiet when you knock on them.
This is the door style most builders use for bedrooms and bathrooms when quality matters.
Many solid core options today are MDF doors with a dense wood-fiber core. They give you the look and feel of a real wood door without the cost of hardwood.
Hollow core doors have a frame around the outside and a lightweight structure on the inside.
That structure is usually a honeycomb pattern made of cardboard or thin fiberboard. The outer surface is the same kind of paint-grade or stain-grade material you see on solid core doors.
Hollow core doors are light. They are easy to carry. They are easy to install. And they cost less than solid core.
The trade-off is what you would expect. They do not block sound as well. They feel less substantial when you close them. And they can dent or damage more easily than solid core.
Here is how the two compare across the things that matter most.
Weight. Solid core doors are heavy. A standard 30-inch solid core door can weigh 50 pounds or more. Hollow core doors weigh about half that.
Sound. Solid core blocks far more sound. Hollow core lets sound pass through more easily.
Durability. Solid core handles bumps, kicks, and wear without much damage. Hollow core can dent or punch through if it gets hit hard.
Cost. Hollow core is the budget-friendly option. Solid core costs more, often two to three times as much.
Feel. Solid core feels like a quality door. Hollow core feels lighter and less substantial.
Installation. Hollow core is easier to install because of the weight. Solid core needs stronger hinges and careful handling.
Some rooms benefit more from solid core than others.
Best for solid core:
If you spend a lot of time in a room, or if you need to block sound coming in or going out, solid core is worth the extra cost.
Other rooms do not need a heavy, sound-blocking door.
Best for hollow core:
Using hollow core in these spaces and saving solid core for the bedrooms and bathrooms is how most homes balance cost and quality.
Sound is one of the biggest reasons people upgrade to solid core.
Sound Transmission Class ratings measure how well a door blocks noise between rooms. The higher the number, the better the door blocks sound.
Hollow core doors usually rate in the low 20s. That is enough to muffle voices but not enough to block them.
Solid core doors usually rate in the high 20s to low 30s. That is enough to block normal conversation, TV noise, and most household sounds.
For a bedroom or home office, the difference is noticeable the moment you close the door.
Hollow core doors cost less upfront. That is a real benefit if you are replacing many doors at once or working with a tight budget.
Solid core doors cost more, but they hold up longer and add value to the home.
A few things to think about.
If you are flipping a house or finishing a basement on a budget, hollow core may be the right call for most rooms.
If you are remodeling your forever home, solid core in the rooms that matter is usually worth the cost.
If you are building new, most homeowners use a mix. Solid core where it matters. Hollow core where it does not.
We carry a full range of interior doors in both solid core and hollow core options.
Before you order doors for a project, ask the supplier these questions.
A good supplier will walk you through the trade-offs without pressure. They will help you figure out where to spend more and where to save.
If you are planning a larger remodel, our homeowner resources section covers other common questions.
If you are weighing solid core vs hollow core doors for your project, the best next step is to come see them in person.
Stop by our showroom or give us a call. We can walk you through your options, talk through where each one makes sense, and help you figure out the right mix for your home. No pressure. Just honest guidance from people who know the materials.
