An item used for building or repairing is lumber.
When we talk about building something, like a house or a deck, we often need to use wood. This wood is called lumber. It can come from trees that have been cut down and processed into usable planks, boards, or beams. Lumber is what carpenters and builders work with when they're constructing something new. When you go to the hardware store to buy materials for a project, you might see rows of lumber stacked up on the shelves. If someone is talking about renovating their kitchen, they might say "I need to get some new cabinets made from solid lumber."
(Canada, US) Wood sawn into planks or otherwise prepared for sale or use, especially as a building material.
Example: 4 December 1883, Chester A. Arthur, Third State of the Union Address The resources of Alaska, especially in fur, mines, and lumber, are considerable in extent and capable of large development, while its geographical situation is one of political and commercial importance.;
