Free deck plans for common sizes, from 10 × 10 to 24 × 12 ft, attached or freestanding: framing, blueprint, 3D model, full materials list with estimated cost, code check and build steps. Ontario rules by default, or pick your province or the US.
Any size or shape, L-shaped, two levels, stairs where you want them: describe it and 16Span draws the plan, checks the structure and prices the materials.