The term âIndigoâ which is to describe the dark purple and blue colors of our Soul Auras. Highlights of violet, green, gold and white are also apparent. Crystal and Rainbow children are also named for their Aura. Typically, it seems, Crystal and Rainbow children are being born to Indigo parents.he term âIndigoâ which is to describe the dark purple and blue colors of our Soul Auras. Highlights of violet, green, gold and white are also apparent. Crystal and Rainbow children are also named for their Aura. Typically, it seems, Crystal and Rainbow children are being born to Indigo parents.
Board foot. A board foot (BF) is the unit of measurement for hardwood lumber. A board foot is 1 foot long x 1 foot wide x 1 inch thick. (1 foot = 0.305 metres, 1 inch = 25.4mm) The formula for determining board feet in a board is: (Width in inches x length in feet x thickness in inches) divided by 12. The percentages of clear wood required for each grade are based on this 12' unit of measure.
Spray foam manufacturers and installers use a unit of measure for spray foam insulation called a âBoard Footâ or âBoard Feetâ. It is a measurement of how much coverage or yield a specific manufacturerâs spray foam will offer. A board foot is a square foot of spray foam insulation at a thickness of one inch. As the industry standard measurement it includes the square footage of the surface that will be sprayed as well as home many inches thick the foam should be. How To Calculate Board Feet. It is easy to calculate the board feet needed for a given project.