Definitions of construction and demolition (C&D) debris vary from state to state. However, in general, discarded inert materials include:

• Concrete, cinder blocks, drywall (sheetrock, gypsum, or plaster), masonry, asphalt
  and wood shingles, slate, and plaster

• Forming and framing lumber, plywood, wood laminates, wood scraps, and pallets

• Steel, stainless steel, pipes, rebar, flashing, aluminum, copper, and brass, residential
  and commercial steel framing, structural steel, and steel utility poles

• Brick and decorative blocks

• Siding

• Doors and windows

• Plumbing fixtures

• Electrical wiring

• Non-asbestos insulation

• Wood, sawdust, brush, trees, stumps, earth, fill, and rock/granular materials

Source: U.S. Environmental Protection Agency