The concrete “stones” in the Column Collection of stacking concrete columns are molded from a Civil War–era stone fence to provide a historical look. Stones are 6 inches thick, 14 inches square, and hollow in the middle so they can slip over a wood post. No mortar or special skills are required: Stones are simply stacked one atop the other. Cost is around $900 per column (13 blocks and a cap). Kroy by Ply Gem, 888.300.8208, kroybp.com
