Cradle-to-Grave Life-Cycle Assessment of Wooden Pallet Production in the United States
13
Table 9—Inputs and outputs for the pallet assembly–
nailing unit process for 100,000 lb (45.4 metric tons) of
pallet loads of product delivered
Unit
Weighted
average
Allocation
(%)
Products/coproducts
Wood pallet, assembled p 2.13 100
Materials/fuels
Wood boards, at pallet facility p 2.13E+00
Fasteners g 5.58E+02
Greases g 2.32E–01
Motor oil g 6.20E–01
Hydraulic fluid g 2.42E+00
Lubricating fluid g 1.07E+00
Plastic wrapping g 1.46E–02
Cardboard packaging g 1.40E–01
Natural gas L 1.17E+01
Liquefied petroleum gas L 3.47E–03
Diesel L 5.82E–03
Gasoline L 7.10E–04
Wood fuel OD kg 1.96E–03
Diesel, forklift L 2.35E–02
Diesel, truck L 1.03E–02
Gasoline, truck L 1.05E–04
Propane, forklift L 7.42E–02
Electricity/heat
Electricity kWh 6.96E–01
Waste
Cardboard packaging g 3.549
Hydraulic fluid g 0.160
Motor oil g 0.023
Greases g 0.003
Lubricants g 2.087
Table 10—Inputs and outputs for the treatment–stamping–
painting for 100,000 lb (45.4 metric tons) of pallet loads of
product delivered
Unit
Weighted
average
Allocation
(%)
Products/coproducts
Wooden pallet final, pallet facility p 2.13 100
Materials/fuels
Wood pallet, assembled p 2.13E+00
Natural gas L 4.15E+00
Liquefied petroleum gas L 5.56E–02
Fungicide g 1.12E–01
Paint g 4.90E+00
Ink g 1.62E–03
Electricity/heat
Electricity kWh 0.05
