The best size depends on how the space will be used. For simple storage, an 8 × 10 ft or 10 × 12 ft shed works well. If the shed will double as a workshop or hobby space, larger options like 12 × 20 ft or 14 × 24 ft provide more room to move and store equipment. Always measure available yard space and leave at least two feet of clearance around the shed for easy access and maintenance.