Material price changes from March 2008 to April 2008

Percent changes from March 2008 to April 2008/ April 2007 to April 2008

Gasoline β€” +3.2/ +23.0

No. 2 Diesel fuel β€” +2.7/ +53.4

Crude petroleum β€” +4.5/ +87.4

Plastic construction products β€” -0.1/ +0.9

Hardwood lumber β€” -0.8/ -2.8

Plywood β€” +0.1/ +0.8

Steel mill products β€” +5.5/ +10.2

Aluminum mill shapes β€” +3.2/ +2.4

Copper and brass mill shapes β€” +0.4/ +4.0

Fabricated structural metal products β€” +3.1/ +7.1

Cement β€” -0.8/ -0.2

Concrete products β€” +1.3/ +3.4

Asphalt felts and coatings β€” +2.4/ +4.7

Gypsum products β€” +0.2/ -16.7

Iron ore β€” +8.1/ +12.6

Iron and steel scrap β€” +32.2/ +57.3

Copper base scrap β€” +7.8/ +8.3

Construction sand, gravel, and crushed stone β€” -0.4/ +6.5

Construction machinery and equipment β€” 0/ +3.2

Tire, tube, thread, etc. β€” -0.1/ +7.0

Light motor trucks β€” +0.3/ +1.6

Heavy motor trucks β€” +0.1/ +0.7

Truck trailers β€” +0.1/ +3.3