Prophetic Tabernacle measurements:

Outer Court
"300 cubits/ 450' perimeter or 5000 square cubit/ 11,250 square feet 
Width + length + height= 1500 cubits

Possibly, Prophetic of Moses to Jesus--1500 years.

Inner Court or Holy Place
60 cubits / 90' perimeter or 200 square cubit/ 300 square feet
Width + length + height= 2000 cubits

Prophetic of 2000 year church age (2030AD?)

Holy of Holies or Most Holy Place
40 cubits / 60' perimeter or 100 square cubits / 150 square feet
Width + length + height= 1000 cubits

Prophetic of the 1000 year millennium reign?