through the wall, and set them so they butt tightly together. As you progress, you can strengthen the wall by placing one stone over two, then two stones over one. Save the broadest, flattest stone’s for the wall’s cap. For freestanding walls, you’ll be building two walls with their presentable faces in opposite directions. The void between the walls should be filled with smaller stones of alternating sizes. Fill gaps in the wall face with small stones, and add any necessary filler stones as chinking to keep pieces from wobbling. The wall should be capped with a top course of large flat stones that overhang the edges of the wall. Lay a 1- to 2-in. thick
Before breaking ground on a major landscaping project, be sure to call your local municipality for the appropriate permits. Also, call 811, the national “Call Before You Dig” number, designated by the FCC to protect American homeowners and profes- sional excavators from the injuries, expenses and penalties caused by digging-related accidents that result in damages to underground utilities.
PHONE BEFORE YOU DIG
Make sure to plan for drainage around your walls. Shown here is the inlet for a drainpipe that runs beneath the wall so water can exit without pushing against the wall.
This photo shows the drain outlet that exits beneath the wall, so water can easily run downhill toward the lake rather than accu- mulate hydrostatic pressure behind the wall. This photo shows construction of the second wall, and the void between that will be backfilled with tightly packed stone. Note the tie stone at the end that spans the width of the wall.
After the void is packed with stone, the top of the double wall is filled with concrete and smoothed in preparation for the top course.
Cap the wall with large flat stones that overhang the edges.
Mortar the capstones onto the wall and fill between the joints.