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How Long Will It Last?

Predictable life expectancies (in years) for a number of home components:

ITEMLIFE
APPLIANCES  
Clothes dryer 14
Clothes washer 13
Dishwasher 10
Microwave oven 11
Range, electric 17
Range, gas 19
BATHROOM FIXTURES  
Cast-iron tub 50
Fiberglass tub/shower 10-15
Toilet 50
COUNTERTOPS  
Ceramic tile lifetime
Granite 20+
Plastic laminate 10-15
Wood 20+
DOORS  
Exterior, protected by overhang 80-100
Exterior, unprotected and exposed 25-30
Garage door 20-50
Garage-door opener 10
Interior, hollow core 30
Interior, solid core 30 to life
Screen 25-50
FLOORS  
Oak or pine lifetime
Slate flagstone lifetime
Vinyl sheet or tile 20-30
ITEMLIFE
HEATERS & AIR CONDITIONERS
Air conditioner, central unit 15
Air conditioner, window unit 10
Furnace, gas- or oil-fired 18
Heat exchanger 24
Water heater, electric 14
Water heater, gas 11-13
LANDSCAPING  
Deck, wooden 15
Driveway, asphalt 10
Fence 12
Patio, brick or concrete 24
Walkway, concrete 24
Walkway, gravel 4
ROOFING  
Asphalt 15-30
Sheet metal 20-50
Slate 50-100
Tile 50
Wood shingles and shakes 15-30
SIDING  
Aluminum 20-50
Metal 50 to life
Vinyl 30
Wood 10-100*
*10 years if constantly moist; 100 years if properly maintained.
 
- Source: Gopal Ahluwalla and Angela Shackford,
"Life Expectancy of Housing Components,"
Housing Economics, August 1993.

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