A fence relies on sturdy posts in order to stand upright. If any posts are leaning, then the nearest fence sections are likely to be leaning too, and one day gravity or a gust of wind could bring them all the way down. Now that the severe storms of winter have passed, consider reinforcing posts that are leaning in any direction. Ideal for both construction and repair, Rapid Set Concrete Mix makes this an easy task to cross off your weekend to-do list. Simply widen the posthole with a shovel, then fill in with the high-strength, rapid-setting concrete, being sure to keep the post plumb. Allow 15 minutes for the concrete to set, and you're done.