Internal Door Frames

(8 Products)

Internal door frames are the structural components that surround and support an internal door within a wall opening. Their primary role is to ensure the door is securely hung, correctly aligned, and operates smoothly, whether opening, closing, or latching. Beyond their practical purpose, internal door frames provide a clean, finished transition between the door and the wall, allowing for seamless integration into any interior design scheme. Whether painted, stained, or left in their natural state, door frames can be tailored to complement existing decor, adding a touch of cohesion to any room.

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What Are Internal Door Frames?

An internal door frame is a structural assembly that houses an interior door, facilitating smooth operation while reinforcing the integrity of the surrounding wall. The frame consists of vertical and horizontal elements, which work in conjunction to provide the necessary support and stability. 

A well-constructed door frame prevents issues such as misalignment, uneven gaps, and operational difficulties, all of which can arise when the frame is improperly installed or of substandard quality.

Internal door frames come in various configurations, with specific types designed to accommodate different door weights, wall thicknesses, and aesthetic preferences. 

Components

  • Two vertical side pieces (jambs) - These are the upright sections on either side of the door.
  • A horizontal head piece - This connects the two jambs at the top of the frame.
  • A threshold (optional) - Some internal doors include a bottom threshold for added support or sealing properties.


Key Differences Between Door Casing, Linings, and Frames

  • Purpose: The door casing is primarily decorative, enhancing the appearance of the door and hiding the transition between the door frame and the wall. On the other hand, the door lining and door frame are functional elements designed to support and secure the door in place.
  • Placement: The door casing is placed around the door opening on top of the lining and frame, forming a visual frame around the door. The door lining is the actual part of the door setup that fits within the door opening and serves as the base for the door's hinges and latch. The door frame is the overall structure that surrounds the door, providing a support system for both the lining and casing.


Door Linings

  • Provides a simple, lightweight framework for standard internal doors.
  • Available in whitewood or redwood, offering variations in strength and finish.


Door Casings

  • Trims the edges of a door opening, providing a finished, decorative look around the door.
  • Available in redwood, offering strength and a premium finish.


Materials and Finishes

Whitewood 

  • A cost-effective and versatile choice for door linings, ideal for painting or staining to match your interior decor. 
  • Whitewood is generally more affordable than redwood due to its abundance and ease of harvesting. 


Redwood 

  • Often chosen for higher-end doors.
  • Redwood is slow-growing and takes decades to reach maturity, which contributes to its higher cost. 
  • It can be stained or left to age naturally to develop a more weathered, rustic look.

Frequently Asked Internal Door Frames Questions

What Is A Door Frame Reveal?

A door frame reveal is the visible portion of the door frame that is exposed between the door and the surrounding wall when the door is closed. The reveal can be adjusted to change the depth of the frame, giving a more recessed or flush appearance. 

The width of the reveal can also influence the aesthetic, with wider reveals typically giving a more traditional or rustic feel and narrower reveals complementing modern designs.

What Should I Do If My Door Frame Is Not Level?

If your door frame is not level, it may cause the door to malfunction, making it difficult to open or close properly. The first step is to check the frame for any visible signs of warping or structural damage. If the frame is misaligned, it may need to be adjusted or replaced. 

For minor misalignment, a professional installer can re-level the frame and ensure that it is properly anchored to the surrounding wall. If the issue persists, it may be necessary to replace the frame to maintain door functionality.

What Is The Trim Around An Interior Door Called?

The trim around an interior door is commonly called casing. Door casing is the decorative moulding or frame that surrounds the door opening, covering the gap between the door frame and the wall.

What Is The Difference Between Door Sill And Threshold?

The door sill is a structural part of the door frame, typically integrated into the floor to provide a sturdy foundation. It supports the threshold, which is the strip that sits on top and serves as a protective barrier against drafts, moisture, and debris.  

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