This project was originally published in the January 2001 issue of Popular Mechanics. You can find more great projects at Popular Mechanics DIY Central.
Step 1: Demolition and Grading
We removed the entire walkway using a 120-volt electric jackhammer. This tool made short work of it and was well worth the $50 rental fee. When using the jackhammer, start at an outside corner and work in, chipping away 8-in.-wide pieces (see inset photo). About the only pleasant surprise in this job was that once the walk was removed, we found that the soil underfoot was firm and needed no further compaction.
If this is not the case with your walk, you must compact the soil—and you may need to place crushed stone on top of it. Check with your local building department or a concrete supplier to see what materials and methods work best where you live.