Ceremony timing?

We had ten groups including myself. That also includes my brother and brother-in-law looping back around after escorting our moms down the aisle because both were in our bridal party and had to escort the person they were paired with as well. We had a non-religious wedding too. Instead of handfasting we did a sand ceremony. We also wrote our own vows. My husband's were rather lengthy. Our ceremony was approximately 20-25 minutes. We had plenty of time for our vows and for the officiant to speak. My vows were about 2-2.5 minutes and my husband's were even longer. The officiant included in the beginning about how we met and how my husband proposed in order to personalize the ceremony to us. In addition to the vows we wrote, we also had to say traditional vows because that was a state requirement. Not sure if you are having any reads, but my grandmother wrote a poem that she read for us. I would say 30 minutes should be plenty of time. I know I was worried, but it worked just fine for us.