When a new floor is laid, additional height is usually to be expected.
For example, if a carpet flooring is removed and replaced by a hardwood flooring, the subfloor structure grows from 4 mm to 15 mm. To ensure that the doors can continue to be used, the door must be shortened.
In addition, the door frames should be trimmed to a suitable height before the laying of the wooden floor.
Instead of defacing the transition with unsightly silicone joints, the parquet can then be simply pushed under the frame (only partially recommended for click parquet).
- Diving circular saw
- Fine multimaster or door trimmer
- Fine sanding paper
- Stechbeitel & Hammer
Adapt the door frames to the parquet
Video: How to shorten the door frame (door lining)
To find the right height for the door frame, all you need is a piece of the top covering (e.g. a single bar oak parquet).
This piece will not be used later, as it usually gets some scratches.
The parquet rod is now placed directly on the screed on the door frame.
It is important that the parquet rod is directly attached to the frame. If there is a distance between them, the saw blade likes to deviate downwards and the frame is cut off at an angle.
If you don’t have a Multimaster or similar, you can also use a Japanese saw and a little bit of hand feeling.
Once the frame has been sawn through, remove the loose parts with a chisel (“stemmeisen”) and a hammer.
One should be careful not to damage the veneer, for example.
Once the excess is removed, the parquet rod is pushed under the frame for a sample. If everything fits, it goes to the next frame.
Machines for shortening the door frame (door lining)
Shorten the door: Bring the door leaf to parquet height
In order to use the door leaf as usual and so that it does not swipe on the parquet floor, it is facilitated by the additional flooring height.
In most cases, it is only a few millimetres of the door that need to be shortened.
The most common problems with shorten door are
- Finding the right height
- Prevent the guide rail from slipping
- Finding a safe stand for the door leaf
- Prevent the “diswelling” on the saw cut
So that the above problems are no longer any more, proceed as follows:
- When the parquet floor has been installed, the door is hung briefly. The door hinge now measures how many millimetres the door protrudes. This is the height, which must be shortened at least on the door leaf. If the parquet floor or the subfloor is uneven, several adjustments should be expected.
- To prevent the door leaf from slipping, we set up two sufficiently wide folding stands. These must be the same height and should be wrapped with a blanket or similar (to avoid scratches).
- To shorten the door we use not a jigsaw. A plunge-circular saw with guide rail should always be used here. The guide rail of a good dipping circular saw (e.g. Festo, Bosch etc.) can be fixed with a screw clamp. This means that we place the guide rail on the door leaf and then fix it with one screw clamp each on the left and right.
Shortening the door – video guide
To prevent the door leaf fraying out when sawing with the plunge-circular saw, the following possibilities exist:
- Glue the place with a Tesa adhesive tape beforehand (dangerous with painted doors, as the paint can be removed with)
- “Scratching” with a sharp cutter knife, along the rail
- Place the diving circular saw on the rail and start. Then dip the saw blade very easily (2-3mm) and first drive along the rail with the saw. This has a similar effect to scribbled with the cutter, but in any case hits exactly the cutting line. Now the cut can be performed in the second gear and full depth.
Once steps 1 to 4 have been completed, it is necessary to test whether the door leaf is still swiping on the parquet floor. If so, steps 1 to 4 must be performed again.
If not, place the door leaf on the painting blocks one last time anyway. In order to prevent the veneer from fraying or tearing off later, you should now break both cut edges with a fine sandpaper.
That’s it – the door is shortened and now it can be hooked up again.
Machines for shortening the door (door leaf)
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