Efficient material management reduces construction delays and costs. Materials must be ordered with adequate lead time for delivery. Delivery schedules must be coordinated to avoid congestion and storage problems. Receiving inspections verify materials match orders and show no damage. Damaged materials must be returned immediately. Storage of materials must protect them from weather and damage. Roofing materials must be stored under cover preventing weather damage. Lumber must be stored level and supported preventing warping and damage. Concrete blocks must be stored on level surfaces preventing damage to edges. Metal materials must be stored to prevent corrosion; stainless steel should not contact other metals. Chemicals must be stored in appropriate conditions per manufacturer specifications. Flammable materials require fire-rated storage. The layout of the site must provide adequate space for storage without interfering with work areas. Traffic patterns should avoid storage areas preventing accidents. Security measures protect valuable materials from theft. High-value items should be stored in secure areas. Inventory management tracks material usage and prevents shortages. Bar codes or tagging identifies materials. First-in, first-out (FIFO) rotation ensures older materials are used first. Material handling equipment including forklifts and cranes moves heavy materials. Operators must be trained and certified. Proper sling selection and rigging prevents material drops. Site cleanliness requires regular removal of discarded materials and packaging. Accumulation of trash creates slip hazards and pest problems. Waste disposal areas must be separated from work areas.