Explainer · 2 min read · Updated October 2026

Yes, you can get French doors with a solid core or solid wood construction. But a French door is defined by its glass, so “solid” means the frame and core, not the whole door.

The core matters most for sound and feel. The chart below compares the three options.

Door core types: hollow core is lightest and cheapest and weak on sound at $30 to $400, solid core has good sound control at $70 to $500, solid wood has the best sound, lasts decades and is heaviest at $160 to $590
Prices are for interior doors in general. Source: This Old House, updated June 2026.

What “solid” means on a glass door

A French door is a hinged door with glass panes that run most or all of its length, says Door to Door Co, a door seller. The glass is the point, so a fully solid door is really a paneled door.

What can be solid is the construction around the glass. That is where the core types below come in.

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I found no source that lists solid-core French doors specifically, so I use general interior door guidance. Ask any maker what the stiles and rails are made of.

The three core types

This Old House describes hollow core as lightweight and the most affordable, with weak sound reduction. It suits closets and pantries.

Solid core is a wood or MDF frame filled with particleboard or similar composites. It sounds quieter, which makes it a fit for bedrooms and home offices.

Solid wood is the most durable, has excellent sound insulation and lasts decades. It is usually the most expensive and the heaviest.

Solid wood paneled door in warm light
Solid wood has heft. Photo: Alexey Demidov on Pexels.

Which one for which room

This Old House’s price table runs $30 to $400 for hollow core, $70 to $500 for solid core and $160 to $590 for solid wood. It lists MDF at $400 to $620 while its text calls MDF mid-range, and it does not resolve that.

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MDF resists warping and shrinking and takes paint well, according to the same page. Door to Door Co says interior French doors come primed for painting or clear for staining.

Which core for which room: closets and pantries use hollow core, bedrooms and home offices use solid core, quiet and long life call for solid wood
Match the core to the room. Source: This Old House.

If privacy or noise is the goal, frosted glass helps with sight lines but a solid core does the work on sound.

My call · James Davis

For a bedroom or home office, I would take a solid core and frosted glass. For a closet pair, hollow core is fine and saves real money.

Before you order

  • Ask what the core and the frame are made of.
  • Match the core to the room: closets, bedrooms or offices.
  • Check the weight against your hinges.
  • Decide how much frosted glass you need.
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For related questions, see how wide French doors open and how to secure them and hollow core bedroom doors built up to feel more like solid wood.