Can I work on a piece of embroidery in the Nine Days? The article I am working on will be used either as a parochet for our shul or a wall hanging in our new kollel building. It will not be completed within the Nine Days.
Embroidering is not permitted during the nine days. However in your case where the embroidery is being done to beautify a shul or a bais midrash.it is permitted, since it is considered being done for a mitzvah.
O:CH 551-2. Poskim.