Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

What do people think of this method for excavating a crawl space:


share|improve this question
up vote 2 down vote accepted

I read the article you linked to. Looks like it would work if you have the right soil conditions, a lot of time, a lot of help and the patience of Jobe. One concern I would have is if you ran into large rocks or wet soils. We have excavated several buildings over the years using the railroad ties and jacking method followed by a mini excavator. Here in the glacial soils of the northeast, we often run into large boulders that would be impossible to remove without heavy equipment. The other caution would be to pour concrete or an other stable footings for the new post supports. This would be tricky if they are done one at a time as you excavate deeper under the building, especially if building has already settled and is not level at the start. Some level reference would have to be maintained throughout the process. This is not as easy as it may sound, and would require some jacking, sistering of floor joists, or a new set of carrier beams etc. along the way. This vacuum method may be OK for small buildings, but could be troublesome or dangerous for larger buildings or for inexperienced builders. Be careful.

share|improve this answer
Thanks. Doesn't sound like this would be appropriate for my case. I actually want to excavate only as low as the lower edge of the footings so I have no concerns about foundations. That said there is one column whose footing is higher than that so I'll only dig at 45 degree angle to it. But it looks like all of this digging would be manual... – Peter Q Jan 10 '11 at 18:48

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.