Floor Sagging 2 Inches

This house has an 18 inch tall crawl with no access.

Floor sagging 2 inches.

Total cost was less than 200 while a pro would charge 500 1000. Common sense tells you that large floor joists can carry more load and spacing joists closer together also increases the load bearing capacity of a floor. This job took two people one afternoon. You can also use a 4 foot carpenter s level placed on top of a 2 by 4 inch board to check level as well.

A simple way to check floor sag is to set a small rolling object on the floor and watch. If the floor is uneven lift up the board until it is level so you ll know how much flooring compound you ll need to even it out. But larger is not always better when builders are constructing a home or adding a room addition. Floors are rarely perfectly level.

How to fix springy and spongy floors. If the area is very large use a long straight 2 in 4 in 5 1 cm 10 2 cm board and set your level on top of it. Basically they are saying if a floor is sloping over a 1 2 to 1 inch in twenty feet then there is concern. Floors that slant or slope.

Floors that slope 2 or 3 inches in 20 feet would be a very serious concern. We used 18 000 pound screw jacks 4x4 lumber a circular saw power drill driver and cement blocks. We got muddy because we were in a dirt crawlspace doing just that crawling. Floor slopes and slants are common in old houses.

Nearly all will say that if a floor slopes 1 and 1 2 inches in twenty feet or more that there should be further investigation. The extra two inches of vertical distance when a floor is framed with 2 x 10 joists rather than 2 x 12s can be quite important for example. Insert 2 inch decking screws 8 inches apart in the subfloor over each. No one likes the feel of a supposedly solid floor bouncing or sagging underfoot.

A slant slope situation might be one where over the course of 15 or 20 horizontal feet the floor slopes down one or two inches. Thre ways to fix a sagging or sloping floor. I ve remedied this problem before but in a house with a basement. Cost time and skills.