What is the difference between first cost and life cycle cost in material decisions?

• A. First cost is upfront price; life cycle cost includes maintenance, operation, replacement, and disposal costs over the product’s life
• B. Life cycle cost includes only disposal costs
• C. First cost includes maintenance and operations
• D. Life cycle cost is always equal to upfront price

Answer: (A)

The key idea is distinguishing the upfront price from the total cost you incur over the product’s life. First cost is the initial price paid at purchase. Life cycle cost, however, includes all costs over the product’s life: operations and energy use, maintenance and repairs, replacements if needed, and eventual disposal or end-of-life costs. This broader view helps you compare options that may look similar at purchase but differ in long-term expenses due to durability, upkeep, energy efficiency, and replacement frequency. For example, a material with a higher upfront price can pay off with lower maintenance and a longer lifespan, reducing overall spending.

The other choices don’t fit because disposal costs are only part of life cycle cost, maintenance and operations aren’t included in the first cost, and life cycle cost isn’t just the upfront price—it’s the total cost across the product’s life.