Can I use reclaimed old-growth cedar from a Vancouver demolition for my new deck build?

Yes, reclaimed old-growth cedar from Vancouver demolitions can make exceptional decking material, but it requires careful inspection, proper preparation, and realistic expectations about additional costs and timeline.

Reclaimed old-growth cedar is arguably the finest decking material available in Metro Vancouver. The tight grain structure, high density, and natural oils in old-growth timber make it extraordinarily durable and beautiful. Many Vancouver heritage homes built in the 1920s-1940s used old-growth Douglas fir and cedar framing that's superior to today's second and third-growth lumber. However, turning demolition lumber into deck-ready material involves significant preparation work that many homeowners underestimate.

Inspection and preparation are critical steps that determine whether your reclaimed cedar is suitable for decking. All demolition lumber must be thoroughly inspected for structural integrity — look for splits, checks, rot, insect damage, and embedded nails or metal. Old-growth cedar is naturally rot-resistant, but decades of exposure in a building envelope may have compromised some boards. Any piece with soft spots, extensive checking, or structural damage should be rejected for decking use. The lumber will need to be denailed (removing all fasteners), planed or sanded to remove surface weathering and achieve consistent thickness, and cut to remove damaged ends. This preparation work is labor-intensive and typically costs $3-8 per board foot depending on condition.

Metro Vancouver's building codes and permit requirements still apply to reclaimed lumber decks. The lumber must meet structural grade requirements for decking applications — old-growth cedar typically exceeds these requirements due to its density and strength, but you may need to provide documentation or engineering approval for permit applications. Building inspectors are familiar with reclaimed lumber projects in Vancouver given the city's active heritage demolition and renovation market. The deck's structural design, footings, and connections must still meet current BC Building Code requirements regardless of the decking material's age.

Cost considerations often surprise homeowners planning reclaimed cedar projects. While the lumber itself may be free or low-cost from the demolition, the preparation, transportation, and installation costs typically exceed new cedar decking. Professional denailing, planing, and preparation can cost $2,000-5,000 for enough lumber for a 300 sq ft deck. Installation takes longer because each board may have slightly different dimensions and characteristics. The total project cost often runs $60-100 per square foot installed — comparable to premium composite decking but with the unique character and environmental benefits of reclaimed old-growth cedar.

Practical tips for success include working with a contractor experienced in reclaimed lumber projects. Not all deck builders are comfortable with the additional preparation and installation time required. Source your lumber from reputable Vancouver demolition companies or architectural salvage yards that can provide documentation about the building's history and lumber species. Plan for 20-30% waste factor due to unusable pieces. Consider having the lumber kiln-dried after preparation to ensure consistent moisture content — this prevents excessive movement and checking after installation.

When to hire a professional includes all aspects of this project beyond sourcing the lumber. Lumber preparation requires industrial planers, denailing equipment, and experience identifying structural defects. Deck construction with reclaimed lumber requires additional time for fitting and installation. The structural engineering, permits, and building code compliance remain the same professional requirements as any elevated deck project.

The environmental and aesthetic benefits of reclaimed old-growth cedar make this an excellent choice for homeowners committed to sustainable building practices and unique character. Just ensure you budget appropriately for the preparation work and extended timeline compared to new lumber installation.