There is the funny story of a man who started building a boat in his basement during the winter with the grand hope of sailing it when the weather turned sunny. To his dismay, though all the pieces easily fit by themselves through the doorway and staircase, when all assembled… the boat could not be moved up and out to the lake.
The moral of the story… be careful not to build a ship in a basement. It may be warm, comfortable and inexpensive to do it that way. But, you will never be able to sail it!