A 2x4 piece of lumber measures approximately 1 1/2 inches by 3 1/2 inches. Milling techniques and dryness of the material impact the actual, final measurements.
The nominal dimensions of lumber are the size of the lumber before drying and milling. Before those processes, a 2x4 measures 2 inches by 4 inches. The reduction in size happens because drying shrinks the lumber, and milling removes surface material to make the lumber cleaner and smoother but subsequently smaller. The length of a 2x4 is not impacted by these processes, so a 2x4 that is 96 inches in length actually measures 1 1/2 inches by 3 1/2 inches by 96 inches.
11/2.
http://wiki.answers.com/Q/What_is_thickness_of_2_x...

1. Lay a sheet of 1inchthick plywood or MDF measuring 32by50 inches flat on a work surface, rightside down. This is the desk top. 2. Lay two planks of 20inch and two planks
http://www.ehow.com/how_10019158_builddeskout2x...

It is 4 inches wide.
http://www.chacha.com/question/howwideisa2x4

Sorry about the delay ... If a 2x4 were really 2" by 4": If it is 8 feet wide, then since 8*12 = 96, it is 96 inches wide. If a 2x4 we really 2" by 4", and they
http://en.allexperts.com/q/Algebra2061/2013/10/nu...
