The inner measurement of the Holy of Holies was twenty cubits squared * . The Ark rested in the center of the Holy of Holies, and on both sides of the Ark were poles used for carrying. These poles were ten cubits long, and yet they protruded outwards towards the curtain. Regarding this phenomena, the Talmud states that the Ark was above the natural realm of space. 
Holiness
Contents:   Part I,    Part II,    Part III,    Part IV,    Part V,    Part VI,    Part VII