subfloor

"My mom spends most of the morning in the kitchen, preparing breakfast for the family. "

"The old plumber worked with lead pipes in the school's plumbing system. "

"Don’t move that beam! It supports the whole platform."

"After the hurricane there was a severe regional shortage of plywood, especially exterior plywood."

"When the sun rises, the world becomes visible."

"The smooth surface of the kitchen table was perfect for setting the dinner plates. "

"The underneath of the aircraft was painted blue."

"The magician was revealing his trick by showing how the disappearing box worked. "

"The birds had built an amazing structure out of sticks and various discarded items."

"floor a house with pine boards"

"Be sure to finish your homework before you go to bed!"

"The heavy box underlying the lighter one caused the whole stack to wobble. "