When considering which door to choose, we think first and foremost about the door leaf—that is, the part that opens. However, in our analyses and calculations, we cannot overlook the door frame—the stationary frame set into the wall opening, to which the door leaf is attached via hinges.
Door frames, however, come in a variety of types—not only in terms of aesthetics but also in terms of construction. They also vary significantly in price, depending on the locking system used in a given model.
When purchasing Barański Optimo doors, customers can choose between doors:
- with a swing or sliding system,
- on a fixed or adjustable door frame,
- with visible or concealed hinges.
Adjustable door frame. What are its characteristics and advantages?
For interior swing-style doors, adjustable rebated door frames (with visible hinges) are typically used. As the name suggests, this type of door frame can be adjusted to fit the width of the wall in the installation opening. The adjustable door frame covers the entire inner surface of the wall. With Barański Optimo doors, the door frame can be installed on any type of wall with a thickness ranging from 75 to 500 mm. Door frames up to 300 mm are available as a single piece. For dimensions ranging from 300 to 500 mm, they consist of two sections joined by a visible connection.
On both sides of the door leaf, the door frame is finished with a cover strip as standard. The width of the standard cover strip is 80 mm. The cover strips can be joined at a 45° angle or a 90° angle. However, in the Barański Optimo series, Optimo also offers a version with an extended top trim strip measuring 120 mm, which is always joined at a 90° angle. This allows the door frame to be installed in taller building openings.
When considering the aesthetics of a door with a door frame, it’s also worth thinking about whether to choose a rebated or non-rebated door frame. In recent years, the latter has been gaining popularity—it allows the hinges to be concealed, giving the door an attractive, more modern look.

Below, we present the width ranges and detailed dimensions of adjustable door frames from Barański Drzwi, which apply to both rebated and non-rebated versions.



Technical Specifications of the Adjustable Door Frame
Fixed rebated door frame. How does it differ from an adjustable one?
A fixed rebated door frame is a more affordable alternative to an adjustable door frame. It has a specific, fixed width. The door frame does not cover the entire width of the wall at the installation opening and is not finished with decorative trim strips on the sides of the door. It therefore has a much simpler appearance. These types of door frames are used because of their affordable price or in cases of very wide walls where an adjustable frame cannot be used.
Fixed door frames are slightly more difficult to install because they require a perfect fit between the individual components: the vertical stiles and the top horizontal rail, which are joined with screws.
Fixed door frames can sometimes be enhanced with an additional quarter-round molding or a flat trim strip, which must be ordered separately. This allows for an aesthetically pleasing finish on the edges of the fixed door frame. The fixed door frame is available exclusively in the rebated version.
Price List – Fixed Door Frame
Technical Specifications of the Fixed Door Frame
Door frames for single-leaf and double-leaf sliding doors
Door frames designed for sliding doors constitute a separate category. As the name suggests, in such designs the door leaf does not open inward or outward (as is the case with swing systems), but slides along tracks parallel to the wall. There are two main sliding systems: surface-mounted and in-wall.
>>See also: Non-rebated glass door frame—a technological and design innovation from Barański Premium Exterior Doors
The sliding solution offers a number of advantages. In particular, it allows for the installation of doors in rooms where there isn’t enough space to open the door leaf in the “traditional” way. In the wall-mounted sliding door segment, you can choose between two options: single-leaf or double-leaf.
Here is an example of a single-panel sliding door with a door frame

The single-panel set includes:
- door leaf
- tunnel-type door frame
- a cover plate with a sliding system
- stop
- other accessories (such as handles)
Here’s what an example of a double-leaf sliding door with a door frame looks like

The double-leaf set includes:
- door leaves
- tunnel-type door frame
- a cover plate with a sliding system
- other accessories (such as handles)
Below is the wall depth range for the tunnel-type door frame used in sliding door systems.


Technical specifications of the wall-mounted sliding system
Door frames for in-wall sliding doors
A more advanced solution for sliding doors is to conceal the door panel within the wall. This type of construction is not only very convenient in terms of usability but also achieves an attractive aesthetic effect. However, it is more difficult to implement because it requires altering the wall structure, planning space within the wall during its construction, or adding an additional drywall wall to conceal the door.
With in-wall sliding doors, a traditional door frame is not used. It is replaced by a specialized cassette from the Eclisse Plus system. As with the surface-mounted system, two variants are available for the in-wall design: single-leaf and double-leaf.
Here’s what a single-leaf door looks like in the in-wall sliding system.

The set includes:
- door leaf
- frame components with gaskets
- GIPS-KARTON system cassette
- other accessories (e.g., handles)
And here’s what the double-leaf version looks like.

The set includes:
- door leaves
- frame components with gaskets
- GIPS-KARTON system cassette
- other accessories (e.g., handles)

Technical specifications of the in-wall system
Current prices for individual door frames are listed in the current Barański Optimo catalog.


