Various projects have used additive manufacturing for architectural applications, with uses ranging from the production of structural joints to molds for concrete casting, façade elements, prefabricated components and in-situ printed structures. However, many of those methods require high energy consumption, use materials that have high CO2 emissions or that are not renewable. This project therefore investigated the use of wood and biodegradable binders for large-scale 3D printing. Different fibers and binders were tested for their extrudability, physical properties, and drying behavior, especially regarding the reduction of shrinkage. Relationships are described for fiber and binder properties to shrinkage and mechanical performance. Suitable material compositions were used for the construction of items ranging in scale from product design to a large architectural column. The lightweight materials, akin to wood foams, are deemed suitable for various architectural applications. While the materials are strong enough for structural applications, further work is required to improve the materials’ safety and durability.