2×4

2×4, two-by-four, or two by four may refer to:

• Two-by-four, a common size of dimensional lumber named for its unprocessed dimensions, usually measuring 1½ × 3½ inches in practice

Film and TV

• 2by4, also known as 2×4, a 1998 film by Jimmy Smallhorne

Sports

• 2×4 Roller Derby, a derby based in Argentina

Vehicles

• 2×4, referring to a pickup truck that is two-wheel drive with a four-wheel drive suspension.

Music

• 2×4 (Guadalcanal Diary album), a 1987 album
• 2×4 (Einstürzende Neubauten album), a 1984 album
• "2×4", a 1996 song by Metallica from their album Load
• "2×4", a 1995 song by Blind Melon from their album Soup
• "2×4", a 1984 song by The Fall from their album The Wonderful and Frightening World of The Fall
• 2/4, a time signature, often used for polka, march, and some Argentine tango
• Two by Four, an album by jazz bassist Marc Johnson