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Phase 5 · Build · Step 5.6

Cabinets, flooring, tile, fixtures, paint

All your visible interior surfaces installed and finished. The longest build stage and the widest cost range — selections can swing 2-3x on the same DADU.

Who
General contractor
How long
6-10 weeks
Cost
$60,000-$120,000
You end up with
DADU substantially complete inside

What's happening

Cabinets install, countertops template and install, flooring goes in, tile work, plumbing fixtures, electrical trim (devices, lights, switches), interior paint, trim, interior doors.

Sequence matters: cabinets before counters, counters before backsplash, flooring decisions interact with cabinet kickplate heights, and so on. A good GC has this locked.

Where cost varies

  • Cabinets: $8,000 (IKEA + assembly) to $40,000+ (custom shop)
  • Counters: $3,500 (laminate) to $12,000+ (slab quartz)
  • Flooring: $4,000 (LVP) to $18,000+ (wide-plank engineered hardwood)
  • Plumbing fixtures: $2,500 builder grade to $10,000+ designer
  • Lighting: $2,500 builder grade to $8,000+ designer
  • Tile: $3,500 standard subway to $12,000+ designer

You can swing the total 2-3x on the same DADU. Pick where you actually want to spend.

What slows this stage down

  • Late finish selections (the part you control)
  • Long cabinet lead times (8-12 weeks custom; 2-4 weeks stock)
  • Counter template-to-install lag (1-2 weeks on quartz, 3-4 on natural stone)
  • Tile setter availability (Portland trades are often booked 4-8 weeks out)

Where this information came from