Are fire doors hollow or solid?

Jan 25, 2024 Leave a message

Most fire doors have a solid core construction which can include particleboard, flaxboard chipboard, and solid timber. On top of that, they're also fitted with what's called intumescent strips.

Fire doors are typically solid core construction using solid wood to make the bulk of the door. Because of their makeup, they are heavy and they are thick too, averaging 10mm thicker than regular internal doors.

Fire door systems are made of fire doors, fire-rated frames, fire-rated hinges, fire-rated handles and intumescent smoke seals. These seals expand when they get hot and prevent smoke from travelling from one room to the next. 

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