The wood columns forming the entrance to the Concord Library's main branch had considerable rot on their wooden base moldings, which rested on stone base blocks. The challenge was to replace the moldings without removing the columns. We turned out new bases, divided into four sections and split in half. We cut out and removed half of the rotted section and slid in half of the replacement section. We then removed the second half and installed the rest of the new molding. While the original moldings were made of pine, we replaced these moldings with mahogany. Once installed, the entire column was painted, making the wood column restoration repairs invisible.