12:44PM | 06/01/01
Member Since: 05/31/01
2 lifetime posts
Can I safely re-excavate and lower my basement floor?
I have a 1908 house in Minnesota with a ridiculously bumpy concrete slab in the basement. Some bumps are probably about 3 inches higher than other sections of the floor. The concrete is about 1-2 inches thick, has broken away and exposed dirt in some and some patches apparently were poured at different times. Very scary.
I’d like to rip out the existing surface, lower the 29X29-foot floor by excavation (doing the work myself, if possible), level it all off and pour a new, smooth concrete surface. In short, I’d like turn this dungeon into a finished space with 6-12 inches more head room.
Can I do this without causing any structural problems? Will lowering the floor pose risks to the existing walls or chimney?
Thanks for any advice.


04:31AM | 06/04/01
Member Since: 01/28/01
171 lifetime posts
Excavating down would be no problem if you stay above the footers. Digging below them may cause the footers to slide into the excavation.

Have you figured out how you're going to remove the concrete and soil out of the basement? Where are you going to dispose of the stuff?

When you install the new floor, make sure to install a water barrier, 3" or more of compacted gravel then 3" or more concrete.


09:53AM | 06/06/01
Member Since: 05/31/01
2 lifetime posts
I haven't made a final decision about how to remove the concrete and soil. The basement has four small glass block windows and a steep staircase leading up to the kitchen. There is an old bulkhead door that a previous owner sealed with cinder blocks. I suppose I could reopen the bulkhead door and temporarily remove the deck that has been built above it. That would give us a direct passageway from basement to outside. Does this sound like the best option?
As for disposal, I was thinking of renting a dumpster.



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

Oversize windows let the outside in, even in a cozy cottage bathroom like this one. A roller screen and wraparound shower ... Built on a rocky island in the Drina River, near the town of Bajina Basta, Serbia, this wooden house was cobbled together ... Large steel-framed windows flood the interior of this remodeled Michigan barn with daylight. The owners hired Northworks A... Edging formed with upside-down wine bottles is a refreshing change. Cleverly and artistically involving recycled materials... A Washington State couple called on BC&J Architects to transform their 400-square-foot boathouse into a hub for family bea... Similar to the elevated utensil concept, hanging your pots and pans from a ceiling-mounted rack keeps them nearby and easy... Few projects are more fun than upcycling a vintage piece in a surprising way. Outfitted with a sink and a delicately tiled... The thyme growing between these stepping stones adds a heady fragrance to strolls along this lush, low-maintenance garden ... Decoupage is an easy way to add any paper design to your switch plate, whether it is wallpaper, scrapbook paper, book page... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Reluctant to throw away any of those unidentified keys in your junk drawer? Hang them from a few chains attached to a simp... A stripped-down model, sans screened porch, starts out at $79,000. Add the porch, a heated floor for the bath, and all the... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon