““The second inexpensive material is wood lath, which is sold in home improvement centers. Believe it or not, they already come 4 feet long with square ends. Sometimes they’re a little crooked, filled with knots, or break easily, so sort through them. But they’re very, very inexpensive—less than a quarter each. Once you lay them out and drill holes at the 12-inch intersections, they’re very easy to connect together with a nut and bolt or some other type of fastener. Because the wood lath is rigid, it can span from one side of the box to the other side in case your Mel’s Mix is not level with the top of the box. Otherwise, it can just lie on top of the soil. If your grid spans across the box sides, keep the grid from moving about by drilling a hole in the ends of the two center slats and screwing them to your wooden box. Some people like to take the wood lath grid up for the winter so it doesn’t get wet and rot as easily. Unscrew the four screws, fold the grid, and hang it on the garage wall. Put the screws in a plastic bag and hang it up with the grid to keep the screws safe and dry over the winter. Attach Your SFG Grid JOINING Drill holes at the intersections of all the grid lath pieces. Next, insert a pin or bolt to hold the grid together. SECURING Drill holes at ends of each lath piece, into the sides of the box. Secure the lath strips to the box with screws driven through the holes. Once the grid is attached, your SFG is ready for planting.””
