#Astrologically Correct Timing - When to Cut Timber and Do Building Projects

We know how the moon affects tides here on earth… when the moon is full, the tides are highest, and when the moon is new, the tides are lowest. Well, the same gravitational pull between our planet and her orb pulls water up not only into the atmosphere, but into our bodies, the trunks of trees, the leaves of plants, and even into solid rock!

It was once common knowledge that if you wanted lumber to last, you harvested the wood on certain days. Or if you wanted your firewood to burn as long as possible, you would harvest that on certain days too. There is a great book called Moon Time – The Art of Harmony with Nature and Lunar Cycles by Johanna Paungger and Thomas Poppe which goes into many chapters worth of detail about these traditional ways of building. But allow us to offer a brief overview here so you can determine whether you might want to use correct timing to fell your wood and build your home. We will not get into all the “whys” - you can grab the book if you would like to know the details! We will at least give you the “whens”!

For me, the biggest benefit of connecting buildings to the movements of the planets is more about connecting to the cosmos than it is about astrology or right timing. The functional benefits are a perk of setting my intentions!

The moon is waning after the full moon and before the new moon. The moon is waxing after the new moon and before the full moon. As with everything, the ideal wood cutting astrology dates may vary slightly by region. Check to see if your area has its own criteria.

If you would like to find out where the moon is today, or for any days this year, please check out our friend Molly Cliborne Gauthier’s Google Plus Moon Calendar at:

Best days for Cutting Wood
 The three days after the new moon each month, in winter when the moon is waning, February evenings when the moon is waning, September 27, December 21.

Non-rotting Hardwood

 New Years, January 7, January 25, January 31-Feb 2, the last two days of the moon on the wane in Pisces (usually in March).

Fire-resistant Wood                         

March 1st after sunset, any day the new moon is in Libra, 48 hours before the new moon in March, the last day before the new moon in December.

Non-Shrinking Wood

 December 21.


The first seven days of the waxing moon in October, after the winter solstice when the moon is on the wane

Planks & Building

 Waxing phase of the moon in Pisces.

Floors & Tools

Scorpio days in August (peel the bark immediately).

Load-Bearing Walls, Concrete & Stone, Stairs, Electrical


Site Inspections & Geotechnical Reports

Moon is waning, close to the full moon if possible so the water table is as high as it should get.


Moon is waning, preferring earth days ruled by Taurus, Virgo, and Capricorn.


Avoiding watery days ruled by Cancer, Scorpio, and Pisces.

Basements & Cellars

During light and warmth signs – days ruled by Gemini, Libra, Aquarius, Aries, Libra, and Sagittarius.

Earth & Concrete Ceilings

Avoid days ruled by Leo.


During the waning moon.

Wooden Stairs, Windows & Doors, Wooden Floors, Setting the Roof Trusses or Vigas, Ceilings, & Paneling, Paving Stones, Verandas, Paths

During the waning moon, preferable on days ruled by Capricorn, avoiding Cancer days.


Cancer, Scorpio, and Pisces days.

Plaster, Exterior Cladding, Floor Coverings

Moon is waning.

Paint, Varnish, Waterproofing, Gluing

Moon is waning, not on Leo or Cancer days, or Scorpio or Pisces Days either when drying is involved.

Turn the Heater on the First Time

Moon is waning, on Aries, Leo, and Sagittarius days.

Best days to ventilate or “air out” the house

 Days ruled by Gemini, Libra, Aquarius, Aries, Leo, Sagittarius.