Supplying doors across 50+ construction projects has shown us that underestimated lead times, specification mismatches, and poor communication are some of the most common causes of costly delays. Doors may seem like a small detail, but mistakes—like wrong swing direction, hardware conflicts, or off-size openings—can halt entire schedules. These issues often arise late, when correction is difficult and expensive. The best way to prevent them? Early coordination with all trades, accurate site measurements, consistent documentation, and clear, proactive communication with clients and suppliers. When door planning is done right, it saves time, prevents rework, and keeps the entire project on track.