Vertical cladding — Hardie Oblique planks run vertically (3.0 m), battens horizontal. Add / edit / delete items (Bunnings). Enter I/N, price & link; tick Del + Save to remove. ~0.50 m² cover per plank → planks ≈ wall m² ÷ 0.50, +10% waste. Shows on external_cladding_materials_bunnings.php.