What is the meaning of fixtures?

fixtures are items that become attached to real property. Examples are heating and air conditioning systems, wall-mounted shelving, and security alarm systems. Lenders must be extremely cautious about what constitutes a fixture. As a general rule, an item may be considered goods before it becomes attached to a building, but becomes a fixture after it is attached. Once affixed to real property, goods may be subject to laws governing real estate collateral rather than rules under Article 9 of the UCC.