HIGHLANDVILLE, Mo. (AP) The owner of a massive home in southwest Missouri has filed a federal lawsuit claiming that during construction the mansion was shorted more than 70,000 pounds of crucial steel fiber.

Lawyers for Steven T. Huff also said in recent court documents that the steel fiber meant for the 72,000-sq.-ft. home, dubbed “Pensmore,' was used in other construction projects from 2011 to 2014, The Springfield News-Leader reported. The lawsuit claims an employee of the company that mixed the concrete for the home profited from the scheme and threatened to fire workers who raised objections to shorting steel from Pensmore. Huff wants the home torn down and rebuilt.

“The shorting scheme is more widespread than even the whistleblower knew, extending to the highest levels of defendants' companies,' the lawsuit said. “The whisteblower was challenged and tested through harsh questioning. Put simply, Pensmore did not want to believe him.'

Michael Callahan, the attorney for Monarch Cement Company, of Humboldt, Kan., and its Springfield subsidiary, City Wide Construction Products, has disputed the lawsuit's claims.

“[The companies] are known for their high-quality products and longtime commitment to customer service,' Callahan said in an earlier written statement. “They will defend their hard-earned reputations against the plaintiff's allegations all the way through trial, if necessary.'