They built three crosses, two 3′x5′ and one 3′x7′. To make the wood fames stable, they created “feet” for the base of their frames. This helps them because they’re a portable church. They simply attach the frames to the floor using wood screws and unscrew them quickly when it’s time to tear down.
They covered the frames with off-white fabric from Hobby Lobby ($2.49/square foot). The total cost of their stage design was around $100 (minus the gelled par cans they used for lighting).