EXHIBIT 12.1

COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES

TEXAS INDUSTRIES, INC. AND SUBSIBIARIES

	Three Months ended August 31,						Year Ended May 31,
In thousands except ratios	2012			2011			2012			2011			2010			2009			2008
Earnings
Income (loss) from continuing operations before income taxes and changes in accounting principles	$	(2,513	)	$	(7,567	)	$	8,472		$	(106,807	)	$	(61,991	)	$	(30,421	)	$	127,359
Fixed charges		18,237			18,425			72,866			70,937			57,686			54,182			35,012
Amortization of capitalized interest		578			579			2,314			2,314			2,314			2,314			1,201
Less: Interest capitalized		(9,310	)		(7,839	)		(33,685	)		(18,694	)		—			(14,394	)		(26,462	)
Adjusted earnings (loss)	$	6,992		$	3,598		$	49,967		$	(52,250	)	$	(1,991	)	$	11,681		$	137,110
Fixed charges
Interest expense	$	7,261		$	8,760		$	32,587		$	43,975		$	45,434		$	28,418		$	1,254
Interest capitalized		9,310			7,839			33,685			18,694			—			14,394			26,462
Net amortization of debt discount, premium and issuance expense		517			700			2,248			3,608			6,806			4,868			1,251
Interest portion of rent expense		1,149			1,126			4,346			4,660			5,446			6,502			6,045
Total fixed charges	$	18,237		$	18,425		$	72,866		$	70,937		$	57,686		$	54,182		$	35,012
Ratio of earnings to fixed charges		.38			.20			.69			—			—			.22			3.92
Deficiency of earnings to cover fixed charges	$	11,245		$	14,827		$	22,899		$	123,187		$	59,677		$	42,501		$	—