Preparation of the doorway and insert of a steel door

How to prepare a doorway for an insert of a steel door

It is better of course that the new door is with the same size as the doorway. But if we missed the size, it does not matter if the opening turned out to be a small punch to the rescue, if there is nothing terrible, then the installation foam will help us. If you still have to increase the doorway, take care of the ceremony, since this work is very dusty. The opening should be more than a door box of 4-6 cm, so that during installation a gap of 2-3 cm is formed on each side.

After the doorway is prepared, you need to try on the door frame. As they say, try on seven times, once cut. And in order not to break the paintwork, it must be sealed with a painting, sticky tape.