Is the seventh day of the seventh lunar month a good day? Can you install beams?

The seventh day of the seventh lunar month is a good day to put beams on. The solar calendar analysis: Yi 'an machinery, offering sacrifices, praying for blessings, seeking heirs, bathing, lifting, harvesting, opening the market, building, columns, putting beams on, opening columns, settling, returning to holes, mending walls, blocking holes, dismantling, releasing water and columns. Today is a good day for the balance beam.