Mechitzah in a shivah house

Hi,

When people daven in a non-synagogue location which is not open to the public, then there need not be separate spaces for men and women. [This assumes that the men will not see anything which they are prohibited from seeing during prayer. - MT]

A house of mourning is generally considered open to the public, and so there should be separate spaces. However, where those present refuse to separate one may view this as a temporary place of prayer, and separate spaces would not be required.

(Rav Moshe Feinstein, Igrot Moshe Orach Chaim 5:12:1)

Have a great day,
Mordechai