SDKO, operated by S. Danielius ir Ko, is a Lithuanian woodworking and timber construction company offering wooden structures, log houses, frame houses, joinery products, doors, stairs and custom wood solutions.

The company works with design, production, drying, processing and sale of timber, serving customers who need a complete package of wood-based building and interior elements. Its focus is practical craftsmanship, durable materials and flexible execution for individual residential or leisure projects.