We will advise you on which door is right for you

Only 4 steps

It’s easy. All you have to do is choose the placement of the door, whether you want a single-wing or double-wing door, which security class you prefer and which properties you would like your new door to have. We will explain everything in each step and show you appropriate products at the end of the process.

The bestselling entry doors for apartments. These doors are suitable especially as entry doors for apartments with metal doorframes. In the case of installing a new doorframe, we recommend the added security of NEXT SF1 doorframes.



The only security door for which security class 4 applies also in the case of installation in an original doorframe. This model is suitable especially as an apartment entry door if you have an original metal doorframe. In the case of replacing your doorframe, we recommend the special NEXT SF1 reinforced security doorframe.

This entry door enables installation for outward opening from a protected space while, preserving security class 3.



The most robust entry door for houses in this category on the market, the SD 102 is suitable for use as an exterior entry door. We also offer double-wing and glazed variants enabling the production of security replicas of historical doors. The SD 102 is installed in a special two-piece NEXT SF 2A security doorframe. Thanks to its solid construction in combination with this doorframe , the SF 102 fulfils the highest requirements for security and thermal insulation.


The most robust double-wing entry door in this category on the market, the SD 102D is suitable for use as an exterior entry door. We also offer a glazed variant enabling the production of security replicas of historical doors. The SD 102D is installed in a special two-piece NEXT SF 2A security doorframe. Thanks to its solid construction in combination with this doorframe, the SF 102 fulfils the highest requirements for security and thermal insulation.


The NEXT SD 104 represents a completely new generation of concealed security doors in concealed security doorframes . Thanks to the unique non-rebated design solution, this model enables the use of countless non-traditional design variants. The door was designed with respect to comfortable thermal insulation properties.
This model’s parameters place it at the absolute top in the field of security doors.



The NEXT SD 121 is suitable for use as an exterior security entry door for a house. We offer this model in numerous modern designs. It can also be manufactured as a security replica of historical doors. The SD 121 is installed in a special two-piece NEXT SF 2A security doorframe. Thanks to its robust construction in combination with this doorframe, the SF 121 fulfils the highest requirements for security and thermal insulation.



An externally inconspicuous repair or renovation of a door is much more effective than a mere additional lock or deadbolt. The door is secured in important places, such as the hinges, lock, doorframe and door surface. On houses subject to historical preservation requirements, this is the least expensive and often the only possible security solution. Installation is certified for doors with metal and wooden doorframes.


Protection of your existing double-wing door provided by the NEXT SD 23 add-on security door mounted on the interior side of your original door. This completely inconspicuous door renovation is much more than a separate additional security lock or deadbolt. The door is secured in all critical places such as hinges, the lock, doorframe and door surface. This is the most affordable security solution for buildings subject to historical preservation requirements. The NEXT SD 23 can be installed on doors with metal or wooden doorframes.