How to choose a staircase? Äripäev radio

The topic of Äripäev’s radio show „Construction of a Private House“ was stairs and also windows and doors. What makes the choice of stairs difficult and what type of doors and windows could be preferred. Juhan Viise, the managing director of Aru Grupp AS, and Andres Salusoo, the manager of the window and door factory, spoke on the radio show.

The show can be listened at:
https://www.aripaev.ee/saated/2021/02/16/kuidas-valida-sobivat-treppi