Rebuilding a Federal-Period Fence
Meticulous shopwork and careful on-site planning recreate a local landmark.
Synopsis: This account, written by two architectural woodworkers, details the construction of a beautiful fence around an historic Federal-period house in Portland, Maine, adjacent to a museum. The project required 7,000 board feet of Honduras mahogany, all of it meticulously patterned and joined.
The fence in front of the 1800 McLellan Sweat mansion in Portland, Maine (now an annex of the Portland Museum of Art), was a classic of Federal-Period craftsmanship. It incorporated elaborate and finely detailed woodwork, especially in the small moldings and carving that mimicked the portico and roof balustrades of the house. Over the years, the fence had been neglected and vandalized, but when the Portland Museum of Art was funded to build a large modern addition, the architects decided to replace the deteriorated fence with a replica, and to extend it to the corner of the proposed building to draw old and new together. Our shop, the Woodward Thomsen Co., won the contract. We specialize in architectural woodworking, and we’ve done a lot of historic restorations.
Planning and preparation
Working with the project architect, we chose a large and small post, a rail section, and a large and small urn to use as models. To ensure quality and precision, we decided to do as much of the work as possible in our own shop.
The architect specified Honduras mahogany for most of the fence — about 7,000 bd. ft. of it. He also specified that all of the millwork had to be dipped in a 5% pentachlorophenol solution (available under various brand names at most building-supply houses) for at least five minutes. Since this stuff leaves a waxy film on the wood, we had to keep gluing after dipping to a minimum. In order to dip large and long glued-up pieces, we had a 1-ft. by 2-ft.…