softwood (n.)

• beam
• billet
• board
• boarding
• clapboard
• cord
• cordwood
• deal
• driftwood
• evergreen
• firewood
• hardwood
• lath
• log
• lumber
• paneling
• plank
• planking
• plyboard
• plywood
• pole
• post
• shake
• sheathing
• sheeting
• shingle
• sideboard
• siding
• slab
• slat
• splat
• stave
• stick
• timber
• two-by-four
• weatherboard
• wood