L1 – roofing, gates, building and finishing materials.
L2 and L7 – log, modular, off-grid houses and other structures.
L3 – building materials, wood and metal products, outdoor furniture, small
architecture, garden machinery, tools, gazebos, storage sheds, playgrounds,
landscaping and greenery.
L4 – heating, water supply and sewage system installations, electrical wiring,
plumbing.
L5 – construction machinery, equipment, tools.