Selecting an correct thickness for a door is a necessary step in the construction of a home. The thickness of a door will determine in what ways that the door will perform and for how long that door will last. Should the thickness of the door be incorrect, the door may draft from within the home, and the hardware for the door may not align corectly to the door.
The thickness of the door can impact the sound insulation of the door, the security of the door, and how resistant the door is to weather condition outside the home. Interior doors is typically used within closets in the home or within guest rooms. People often select hollow-core interior doors for these locations due to the fact that hollow-core interior doors are lightweight and relatively inexpensive to purchase.
How to Choose the Right Door Thickness
Solid-core interior doors, however, are best used within bedrooms in the home or home offices. Solid-core interior doors offer more better sound blocking properties, and the solid core of the door creates the sensation of a solid door when it is closed. People may prefer solid-core interior doors for these reason.
Exterior doors must meet different standards than interior doors. Exterior doors must be resistant to weather conditions outside the home, as well as have heavy security hardware to provide security for those outside the home. Exterior doors are typically thicker than interior doors; such thickness allow for the doors to contain insulation, which prevents the transfer of heat through the door.
Additionally, the thicker walls of exterior doors can provide support for the heavy hinges that the door require. An exterior door that is too thin may not be able to prevent water from entering the home in heavy rains, or it may not have enough security to protect the home for those outside. Fire-rated doors must be of a certain thickness.
The test evaluates fire-rated doors as a set; the door itself, the frame, the hinges, and the seals must all be fire-rated to ensure that the fire resistance property of the door are maintained. Fire-rated doors may have a twenty-minute fire rating for a bedroom, but may have a higher fire rating for a stairwell. The hardware for the door must be compatible with the fire rating of the door; otherwise, the fire protection of the door may be voided.
The thickness of the door influences sound performance by a door. Sound performance is, however, also influenced by how well the door seal. A thick door will block more sound than a thin door, but sound will still be able to pass through any gap in the door.
Thus, to improve the sound performance of a door, acoustic seals may be added to the door to seal those gaps. Adding seals to a solid-core door may provide more improved sound performance than purchasing a door with a thicker slab of solid wood. The hardware for a door must be compatible with the thickness of the door.
Hardware that is not compatible with the thickness of the door may result in alignment problems with the hardware. The hardware for a heavy door will have longer screw, wider hinges, and a more robust door closer. Thus, the builder must select the hardware in relation to the type of door being construct to avoid any mistake in construction; otherwise, the purchase of door hardware prior to the selection of the thickness of the door could result in the purchase of door hardware that is incompatible with the door.
The door frame should also be of a thickness that complement the thickness of the wall. If the door frame is too shallow for the thickness of the wall, the door will sit proud of the wall. If the door frame is too deep for the thickness of the wall, the trim for the door will not be installed at the proper angle to the wall.
Extension kits can be purchased for the door frame if the walls is thick; extension kits allow the door frame to be adjusted for the thickness of the wall. However, you should of measured the thickness of the wall prior to purchasing a door frame of any type to ensure that the frame and trim will be installed correctly to the door.