I am installing a new, approx 16' support beam in my house, to be held up initially by adjustable jacks, and permanently by 4 4" wooden posts. Some time ago I saw on one of the construction shows an ingenious method of sizing and setting posts, to wit:
- Step 1: Get the beam where you want it with the adjustable jacks
- Step 2: Dig several holes where you want the footings be
- Step 3: install the 4" posts to the beam (using hangers), letting it hang in the air above the holes
- Step 4: Pour concrete in holes, leaving a 1" gap between the concrete and the posts
- Step 5: Wait for concrete to cure
- Step 6: Pour non shrink grout between concrete and 4" wooden post - letting the grout lap over the post by about 1/4" or so
- Step 7: Wait for grout to cure
- Step 8: Remove adjustable posts - thereby transferring all load to 4" wooden posts
This seems like an excellent way of doing it - the posts are the right height automatically, there is much less need for measuring and the posts can be adjusted before there is any load upon them.
However, I have never heard of anyone else doing this - nor using non-shrink grout in structural applications.
- Is is a good idea to do the 4" posts and adjustable posts at separate times?
- Is non-shrink grout useful for structural applications?