The mosque was built from various types of stone, including black basalt and limestone in red, white, and black. The building's beauty and architectural elegance have been compared to the Masjid al-Haram in Mecca. The Saleh Mosque in Sana'a boasts a remarkable total area of 224,831 square meters, which includes not only the mosque itself but also surrounding facilities such as gardens, pedestrian walkways, and parking lots. With a height of 24 meters, the mosque can accommodate over 50,000 worshippers. A separate prayer area for women was originally designed for 2,000 women but was later expanded to accommodate up to 4,000.