There's nothing like a set of stone porch steps to create a rustic accent to a home’s exterior. If you have flagstone and a few good instructions, all you will need to build your stone steps is a little luck so that you don't make some of the mistakes you'll find below.
Setting Your Stone on a Soft Base
Laying your stone on a base of soft dirt can easily result in your steps settling and becoming unlevel. The weight of your stone steps can easily sink your bottom step into the soft soil, especially if the soil is sandy or if your porch is built where water can collect and create a bog. You can avoid this by compacting the soil that will become the base of your steps.
Failure to fill sand or gravel behind your second step space, failure to use polyurethane constructive adhesive to adhere your steps together, or failure to compact the gravel or sand you use for fill can result in your stairs shifting and becoming more uneven.
Creating Too Much Space between Steps
Avoid leaving excessive spaces or voids between the stones that make up your steps. Unless you fill these voids with gravel, your steps are likely to shift.