When choosing doors for a building, it\’s essential to understand the differences between interior and exterior doors. These differences impact functionality, durability, and aesthetics, which are crucial for door wholesalers and their clients.

Exterior doors are typically thicker (45mm) and made from durable materials like wood, steel, or fiberglass to provide security and insulation. In contrast, interior doors are thinner (35mm) and lighter, often featuring a hollow core to separate indoor spaces efficiently.

Is there a difference between interior and exterior doors?

Interior doors serve to open up and close off rooms inside the house. They are usually made of a single material like wood or fiberboard. Exterior doors, however, are designed for durability and security, typically featuring a combination of materials such as a metal or steel frame with a heavy wooden door.

Do interior doors have to match exterior doors?

Internal doors don\’t need to match your front door. This decision is purely aesthetic and based on personal preference. Either choice can work well, depending on your design goals.

What is the difference between a front door and an internal door?

Interior doors are generally around 35mm thick, sufficient for indoor use where extreme durability is not required. Exterior doors, on the other hand, are around 45mm thick, providing better insulation and security against external elements.

Is there a difference between interior and exterior door knobs?

Interior door handles and knobs are lighter and more compact since they do not need to provide as much security. They often lack locking mechanisms, unlike exterior door knobs designed for security and durability.

Exterior Door vs. Fiberglass Door

Exterior doors made from materials like wood or steel offer robust security and insulation. Fiberglass doors are an excellent alternative for exterior use, combining the strength of steel with the aesthetic appeal of wood. They are resistant to warping and cracking, providing long-lasting durability with minimal maintenance.

Contrast a Solid Core with a Hollow Core Door

Interior doors often have a hollow core, making them lighter and easier to handle. Solid core doors, typically used for exterior applications, offer better sound insulation and security due to their denser material.

How to Tell if a Door is Interior or Exterior

The primary indicators are thickness and material. Interior doors are usually thinner (35mm) and lighter, often made from a single material. Exterior doors are thicker (45mm) and constructed from multiple layers for enhanced security and insulation.

Summary
Selecting the right door for each application involves understanding the key differences between interior and exterior doors. This knowledge helps in making informed decisions, ensuring that each door meets its functional requirements while complementing the overall design. If you have any questions or need assistance in choosing the right doors, feel free to reach out to us.