ᐅ Interior doors for self-installation: standard size or larger?

Created on: 28 Jul 2019 09:25
B
B.Baumeister
Hello everyone,
I wanted to order the interior doors and just measured the rough opening.
In height, I consistently get around 203 cm (80 inches), sometimes including the subfloor. Normally, this should be a standard opening, meaning about 201 cm (79 inches) for the rough opening. However, with these measurements, on Türenheld the doors are considered a special size, starting at 213 cm (84 inches).
How much tolerance is there when installing the frame and the door? Will I really be short if I order the standard size?
According to Türenheld, the rough opening would be 201 cm (79 inches), and the order size 198.5 cm (78 inches).
Additionally, all doors need to have 1.5 to 2 cm (about 0.75 inches) clearance at the bottom due to the ventilation system.
Thanks in advance for your answers.

Enrico
B
B.Baumeister
1 Aug 2019 20:37
Two centimeters (about 0.8 inches) also seems like a lot to me, and I don’t like that idea either.
That’s how it was stated in the builder’s documents. However, on the ventilation system’s own page, they only mention 5–10mm (0.2–0.4 inches).
Where exactly do you mean the overflow opening? In the door frame? It looked very complicated when I just searched for it online.

Standard-sized doors, including the frame, cost around 200€ together. The additional cost for 211cm (83 inches) tall doors is about 65€.