| LIFE IN YEARS |
| BUILDINGS AND STRUCTURES: |
| Fireproof Construction - Walls are constructed of brick, stone, iron or other hard combustible materials. |
50 |
| Non-fireproof Construction, portable classrooms, concession stands, garages |
33 |
| IMPROVEMENTS OTHER THAN BUILDINGS: |
| Fence: |
|
| - Brick or Stone |
25 |
| - Chain link |
20 |
| - Wire |
10 |
| - Wood |
15 |
| Flagpoles |
20 |
| Signs |
10 |
| Yard and athletic field lighting |
20 |
| Bleachers, fixed |
20 |
| Playground equipment |
15 |
| Goalposts |
20 |
| Shrubs,
lawns and trees |
10 |
| Retaining
walls |
25 |
| Paving (including roadways, walks and parking) |
| - Asphalt |
10 |
| - Concrete |
15 |
| - Gravel |
5 |
| Undergroundsprinklers |
15 |
| Athletic track |
10 |
| Football field |
20 |
| INFRASTRUCTURE: |
| Underground sewer and water lines |
20 |
| Roads |
20 |
| Bridges |
30 |
| Drainage Systems |
25 |
| Dams |
40 |
| Street Lights |
20 |
| EQUIPMENT: |
| A |
| Adding
machines |
10 |
| Addressing
machines |
10 |
| Air
compressors |
10 |
| Air
conditioning units, casement |
10 |
| Air
hoists |
10 |
| Alidades,
telescopic |
10 |
| Alignment
gauges, chamber, toe-in, etc. |
10 |
| Anatomical
models |
10 |
| Andirons |
10 |
| Anemometers |
10 |
| Answering
machines |
5 |
| Anvils |
10 |
| Apparatus
cabinets |
15 |
| Aquariums |
10 |
| Arc
welding apparatus |
10 |
| Armature
growlers |
10 |
| Astrographs,
wall |
10 |
| Athletic
uniforms |
10 |
| Audiometers |
10 |
| Autoclaves |
10 |
| Automobile
lifts |
10 |
| AV mixer |
10 |
| B |
| Balances,
Beam |
10 |
| Baling
presses, compression molding |
10 |
| Band
instruments |
15 |
| Band saws |
10 |
| Band
uniforms |
10 |
| Barber
shop tools, electrical |
10 |
| Barber
type furniture Barographs |
10 |
| Barometers |
10 |
| Bars,
horizontal, portable |
10 |
| Battery
chargers |
10 |
| Beaters,
egg, electric |
12 |
| Beauty
class furniture |
10 |
| Beds |
15 |
| Bellows,
power |
10 |
| Benches |
20 |
| Bicycle
racks, portable |
20 |
| Bicycles |
10 |
| Billing
machines |
10 |
| Binders,
agricultural |
10 |
| Biological
models |
10 |
| Blackboards,
portable |
15 |
| Bleachers,
portable |
20 |
| Blood
analysis apparatus |
10 |
| Blood
plasma cabinets |
10 |
| Blood
pressure apparatus |
10 |
| Blue
print machines |
10 |
| Boards,
bulletin, portable |
10 |
| Boat or
canoes |
10 |
| Bodies,
bus |
10 |
| Bodies,
truck |
10 |
| Book
trucks |
10 |
| Bookbinding
machinery |
10 |
| Bookcases,
sectional |
10 |
| Bookkeeping
machines |
10 |
| Books,
hardcover library |
10 |
| Boring
machines, precision table or vertical |
10 |
| Boyles
law apparatus |
10 |
| Brake
lining machines |
10 |
| Brakes
and folders, hand or power |
10 |
| Bread
slices, mechanical |
12 |
| Bread
Toasters, electric |
12 |
| Bridges,
whetstone and similar |
15 |
| Broilers,
electric |
12 |
| Brooms,
power driven |
10 |
| Buffers,
electric |
10 |
| Bulletin
boards, portable |
10 |
| Bus
wagons |
10 |
| Buses |
10 |
| C |
| CD Player |
10 |
| Cabinets,
apparatus |
10 |
| Cabinets,
beverage cooling, ice or electric |
10 |
| Cabinets,
filing |
10 |
| Cabinets,
frozen food storage |
10 |
| Cabinets,
ice cream, ice or electric |
10 |
| Cabinets,
laboratory |
10 |
| Cabinets,
lantern slide |
10 |
| Cabinets,
print, drafting |
10 |
| Cabinets,
printers, galley |
10 |
| Cabinets,
printers, type |
10 |
| Cabinets,
supply |
10 |
| Calculator |
10 |
| Calorimeters,
continuous flow |
10 |
| Calorimeters,
electric |
10 |
| Cameras |
5 |
| Camcorders |
5 |
| Canners |
10 |
| Canoes |
10 |
| Card
racks |
10 |
| Card
tables |
10 |
| Carpets |
10 |
| Cassette
Recorder |
10 |
| Cases,
display |
10 |
| Cases,
file |
10 |
| Cases,
laboratory |
10 |
| Cases,
supply |
10 |
| Cash
registers |
10 |
| Centering
machines |
10 |
| Centrifuges |
10 |
| Chain
hoists |
10 |
| Chairs |
10 |
| Chairs,
folding |
10 |
| Chalk
board, portable |
10 |
| Chargers,
battery |
10 |
| Chart
stands |
10 |
| Chassis,
bus |
10 |
| Chassis, truck |
10 |
| Check handling
machines |
10 |
| Check writers |
10 |
| Chisels, in sets |
10 |
| Choppers, food, power |
10 |
| Cleaners, steam vapor |
10 |
| Cleaners, vacuum |
10 |
| chinometers,
photoelectric |
10 |
| Clippers, hair,
electric |
10 |
| Clocks, wall |
10 |
| Cloth cutting
machines |
10 |
| Clothes dryers |
10 |
| Clutch rebuilding
apparatus |
10 |
| Coffee grinders |
12 |
| Coffee percolators,
electric |
12 |
| Coffee urns |
12 |
| Coin, currency and
check handling machines |
10 |
| Collapsible tables |
10 |
| Colorimeters |
10 |
| Compasses, magnetic |
10 |
| Computers, printers,
screen, and accessories |
5 |
| Computer scanner |
5 |
| Compressors, Air |
10 |
| Computer Desk |
10 |
| Connecting rod
aligners |
10 |
| Connecting rod boring
machines |
10 |
| Connecting rod
rebabbiting jogs |
10 |
| Conveyors |
10 |
| Cookers, pressure |
12 |
| Cooking stoves |
12 |
| Corkboard |
10 |
| Coolers, water |
10 |
| Copy Machines |
5 |
| Costumers |
10 |
| Cots |
10 |
| Couches |
10 |
| Counter freezers |
12 |
| cubicles |
10 |
| Cupboards |
15 |
| Cylinder boring
machines |
10 |
| Cylinders, gas |
10 |
| D |
| Dating machines |
10 |
| Deep fat fryers |
12 |
| Deep Freezers |
12 |
| Desks |
10 |
| Dictating machines |
10 |
| Dictionaries,
large unabridged |
10 |
| Dictionary
stands |
10 |
| Dies, in
sets |
10 |
| Diesel
engines for use in classrooms |
10 |
| Discs,
optical |
10 |
| Dish
trucks |
10 |
| Dishwashing
machines |
12 |
| Display
cases |
10 |
| Distilling
apparatus |
10 |
| Ditto
machines |
10 |
| Drafting
Machines |
10 |
| Drawing
tables |
10 |
| Drift
meters |
10 |
| Drill
presses, bench, floor or radial |
10 |
| Drills,
power |
10 |
| Drinking
water coolers, electric or ice |
10 |
| Drums,
bass, kettle, snare |
15 |
| Dryers,
clothes |
15 |
| Dryers,
hair |
10 |
| Drying
units, infra-red |
10 |
| Duplicating
machines |
10 |
| Dry erase
board |
10 |
| DVD's |
5 |
| E |
|
| Easels |
10 |
| Egg
beaters, electric |
12 |
| Electric
clippers, sheep, horse |
10 |
| Electric
dishwashers |
12 |
| Electric
floor scrubbers |
10 |
| Electric
hot plates |
12 |
| Electric
irons |
10 |
| Electric
mixers |
12 |
| Electric
sanding machines |
10 |
| Electric
toasters |
12 |
| Electric
tube testers |
10 |
| Electric
Vacuum cleaners |
10 |
| Electric
waxing machines |
10 |
| Electric
Welding apparatus |
10 |
| Electrolysis
apparatus |
10 |
| Electronic
frequency meters |
10 |
| Electronic
deviation meters |
10 |
| Electronic
power supply and voltage |
10 |
| Electronic
recording devices |
10 |
| Electronic
volt-ohmmeters |
10 |
| Embossers |
10 |
| End
tables |
10 |
| Engine
flushing machines |
10 |
| Engines,
for use in classrooms |
10 |
| Enlargers |
10 |
| Envelopes
sealers |
10 |
| Erasers,
electric Exhibit cases |
10 |
| Exposure
meters, camera |
10 |
| Extensometers |
10 |
| Extinguishers,
fire |
10 |
| Extractors |
10 |
| F |
|
| Falling
weight rammers |
10 |
| Fans, electric,
portable |
10 |
| Fax machines |
10 |
| Figures, geometrical,
models in sets |
10 |
| Filing cabinets |
10 |
| Filing machines |
10 |
| Fire extinguishers |
10 |
| Fireplace fixtures |
10 |
| Flat irons, electric |
10 |
| Floor scrubbers,
electric |
10 |
| Folding chairs |
10 |
| Folding tables |
10 |
| Forges |
10 |
| Forms, dress |
10 |
| Forms, geometrical
model |
12 |
| Foundry machinery |
12 |
| Frames, blueprint |
10 |
| Freezers |
12 |
| Freezers, ice cream |
12 |
| Frequency meters |
10 |
| Furnaces, heat
treating |
15 |
| Furnaces, laboratory |
10 |
| Furnaces, remelting |
10 |
| Furniture |
10 |
| G |
|
| Galvanometers |
10 |
| Galvanoscopes |
10 |
| Gas compressors |
10 |
| Gas cylinders |
10 |
| Gas meters,
laboratory |
10 |
| Gas plates |
10 |
| Gas stoves |
10 |
| Gasoline dispensing
pumps |
10 |
| Gear cutting machines |
10 |
| Gelatin duplicators |
10 |
| Generators |
10 |
| Globes |
10 |
| Grass shears, power
operated |
10 |
| Grinders, power
operated |
10 |
| Guns, starting |
10 |
| H |
|
| Hair clippers,
electric |
10 |
| Hair dryers |
10 |
| Hall trees |
10 |
| Hammers, autobody,
pneumatic,etc. |
10 |
| Hammers, electric,
hand |
10 |
| Hand tools, in sets |
10 |
| Hand tools, power
driven |
10 |
| Hand trucks |
10 |
| Harnesses |
10 |
| Heaters, portable |
10 |
| Hoists, Electric or
pneumatic |
10 |
| Holders, dictionary |
10 |
| Horses,
gym equipment |
10 |
| Hot
plates |
12 |
| Hurdles |
10 |
| Hydraulic
jacks, garage type |
10 |
|
I |
|
| Ice cream
freezers |
12 |
| Instruments,
band and musical |
15 |
| Instruments,
musical |
15 |
| Instruments,
recording, electrical |
15 |
| Irons,
electric |
10 |
|
J |
|
| Jacks,
garage type, hydraulic |
10 |
| Jointers |
10 |
| Juice
extractors, electric |
10 |
|
K |
|
| Key racks |
10 |
| Kilns |
10 |
| Kitchen
Tables |
15 |
|
L |
|
| Laboratory
balance, beam |
10 |
| Laboratory
furniture |
10 |
| Laboratory
models |
10 |
| Laminator |
10 |
| Lamps,
electric floor |
10 |
| Laser
Disk Player |
10 |
| Lantern
slide cabinets |
10 |
| Lathes,
brake drum |
10 |
| Lathes,
engine |
10 |
| Lathes,
turret, or automatic screw machines |
10 |
| Lathes,
wood turning |
10 |
| Lawn
mowers |
10 |
| Lawn
rollers |
10 |
| Lead,
slug and rule casting machines |
10 |
| Lecterns |
10 |
| Letter
presses |
10 |
| Library
books |
10 |
| Library
furniture |
10 |
| Library
trucks |
10 |
| Lifts,
vehicle and handicap |
10 |
| Lighting
Units, blueprinting |
10 |
| Line
markers, large push type |
10 |
| Linotypes |
10 |
| Lockers,
not built-in |
10 |
|
M |
|
| Machine
tools |
10 |
| Machinery,
canning |
10 |
| Machinery,
cement making |
10 |
| Machines,
adding |
10 |
| Machines,
addressing |
10 |
| Machines,
billing |
10 |
| Machines,
bookkeeping |
10 |
| Machines,
brake lining |
10 |
| Machines,
calculator |
10 |
| Machines,
check handling |
10 |
| Machines,
coin handling |
10 |
| Machines,
coin operated |
10 |
| Machines,
dating, power |
10 |
| Machines,
dictating |
10 |
| Machines,
dishwashing |
12 |
| Machines,
drafting |
10 |
| Machines,
dry cleaning |
10 |
| Machines,
duplicating |
10 |
| Machines,
fax |
10 |
| Machines,
laundry |
10 |
| Machines,
mimeograph |
10 |
| Machines,
mixing |
12 |
| Machines,
numbering, power |
10 |
| Machines,
polishing |
10 |
| Machines,
pressing |
10 |
| Machines,
sanding |
10 |
| Machines,
scrubbing |
10 |
| Machines,
sewing |
10 |
| Machines,
stamping, power |
10 |
| Machines,
tabulating |
10 |
| Machines,
washing |
10 |
| Machines,
waxing |
10 |
| Maps,
wall |
10 |
| Mats,
wrestling |
10 |
| Medicine
cases |
10 |
| Metal
working machinery |
10 |
| Microfilm
readers and viewers |
10 |
| Micro-projectors |
10 |
| Microscopes |
10 |
| Microwave
Oven |
12 |
| Milling
machines |
10 |
| Millivoltmeters |
10 |
| Mimeograph
machines |
10 |
| Mirrors,
large wall |
10 |
| Miter
boxes |
10 |
| Mixers,
electric |
10 |
| Models,
shop and laboratory |
10 |
| Mop
trucks |
10 |
| Motor
analyzers |
10 |
| Motor
generator sets |
10 |
| Motor
vehicles |
10 |
| Motorcycles |
10 |
| Motors,
not integral parts of larger units |
10 |
| Mowers |
10 |
| Musical
instruments |
15 |
|
N |
|
| Nets,
steel |
10 |
| Noise and
field strength meters |
10 |
|
O |
|
| Office
furniture |
15 |
| Ohmmeters |
10 |
| Optical
discs |
10 |
| Organs |
15 |
| Oscillographs |
10 |
| Output
meters |
10 |
| Ovens |
12 |
|
P |
|
| Peelers,
electrical |
12 |
| Percolators,
coffee, electric |
12 |
| Permanent
waving machines |
10 |
| Phonographs
|
10 |
| Photocopying
apparatus |
10 |
| Photoengraving
apparatus |
10 |
| Photometers |
10 |
| Pianos |
15 |
| Pictures,
large wall |
10 |
| Pipe
dies, in sets |
10 |
| Planers,
power |
10 |
| Planning
machines, photoengravers |
10 |
| Plaques,
permanent |
10 |
| Plates,
bench |
10 |
| Plates,
hot |
10 |
| Platforms |
10 |
| Plows,
field |
10 |
| Plows,
snow |
10 |
| Polarimeters |
10 |
| Polariscopes |
10 |
| Popcorn
Popper |
12 |
| Postal
meters |
10 |
| Potato
peelers, large machine |
12 |
| Power
sprayers and dusters |
10 |
| Presses,
arbor |
10 |
| Presses,
books, bookbinders |
10 |
| Presses,
engraving |
10 |
| Presses,
letter |
10 |
| Presses,
lithographic or offset printing |
10 |
| Presses,
power |
10 |
| Presses,
punch |
10 |
| Printing
cases |
10 |
| Printing
frames |
10 |
| Printing
presses |
10 |
| Projector,
overhead |
10 |
| Projector,
slide |
|
| Projection
screen |
10 |
| Pruners |
10 |
| Public
address system, portable |
10 |
| Push
carts |
10 |
|
R |
|
| Radios |
10 |
| Ranges,
cooking |
12 |
| Record
players |
10 |
| Recorders,
Sound |
10 |
| Reference
books |
10 |
| Refracting
apparatus |
10 |
| Refrigerators |
12 |
| Registers, cash |
10 |
| Rollers, lawn
Routers, plate, photo engraving |
10 |
| Rowboats |
10 |
| Rugs, room size |
10 |
|
S |
|
| Safes |
10 |
| Sanding machines |
10 |
| Saws, band |
10 |
| Saws, circular |
10 |
| Saws, power hack |
10 |
| Scales, beam balance |
10 |
| Screens, projection,
portable |
10 |
| Scrubbing machines |
10 |
| Sealers, envelope |
10 |
| Seats |
10 |
| Sectional bookcases |
10 |
| Servers, routers and
accessories |
5 |
| Sewing machine |
10 |
| Shapers, bench and
floor |
10 |
| Shapers and routers |
10 |
| Shear, power |
10 |
| Slicers, bread,
mechanical |
12 |
| Socket wrench sets |
10 |
| Software -
only that created in house |
10 |
| Soil penetrometers |
10 |
| Soil test molds |
10 |
| Spark plug cleaning
machines |
10 |
| Spectroscopes |
10 |
| Sprayers, power |
10 |
| Spreaders, tire |
10 |
| Stacks, book |
10 |
| Stamping machines,
power |
10 |
| Stands, chart |
10 |
| Stands, engine repair |
10 |
| Stands, umbrella |
10 |
| Staplers, foot or
power operated |
10 |
| Stereoscopes |
10 |
| Sterilizers |
10 |
| Stitchers |
10 |
| Stones, printers |
10 |
| Stools |
10 |
| Stoves |
12 |
| Supply cases |
10 |
|
T |
|
| Tables |
10 |
| Tanks, bulk storage |
10 |
| Television sets |
10 |
| Tennis court nets,
steel |
10 |
| Tents, wall |
10 |
| and tripods |
10 |
| Thermographs |
10 |
| Toasters |
12 |
| Tool sets, hand |
10 |
| Tractors |
10 |
| Transmissions |
10 |
| Trimmers,
hedge, power |
10 |
| Tripods,
camera |
10 |
| Truck,
motor |
10 |
| Tunnels,
models, wind |
10 |
| Typewriter
desks |
10 |
| Typewriters |
10 |
|
U |
10 |
| Uniforms,
athletic and band (initial purchase) |
10 |
|
V |
|
| Vacuum
cleaners |
10 |
| Vacuum
type voltmeters |
10 |
| VCR |
10 |
| Vending
machines |
10 |
| Vises,
bench |
10 |
| Voltmeters |
10 |
|
W |
|
| Wagons |
10 |
| Washers
and dryers, photographic |
10 |
| Washing
machines |
10 |
| Watchmen's
time clocks |
10 |
| Water
coolers |
10 |
| Water
meters, laboratory type |
10 |
| Watt
meters, laboratory type |
10 |
| Wave
meters and wave analyzers |
10 |
| Waxing
machines |
10 |
| Weighing
scales, beam |
10 |
| Weight
benches |
10 |
| Weight
machines |
10 |
| Weight
sets |
10 |
| Welding
apparatus |
10 |
| Wheel
straightening apparatus |
10 |
| Wheelbarrows |
10 |
| Wheels,
pottery |
10 |
| Work
benches\Work tables |
10 |
| Wrenches,
in sets |
10 |
|
Y |
|
| Yard
benches |
10 |
