Exhibit 12.1

COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES

TEXAS INDUSTRIES, INC. AND SUBSIDIARIES

	Three Months ended August 31,					Year Ended May 31,
In thousands except ratios	2010			2009		2010			2009			2008			2007			2006
Earnings
Income (loss) from continuing operations before income taxes and changes in accounting principles	$	(38,560	)	$	3,259	$	(61,991	)	$	(30,421	)	$	127,359		$	156,563		$	(8,814	)
Fixed charges		15,635			14,715		57,686			54,182			35,012			32,515			38,929
Amortization of capitalized interest		579			579		2,314			2,314			1,201			1,100			1,100
Less: Interest capitalized		—			—		—			(14,394	)		(26,462	)		(12,855	)		(1,526	)
Adjusted earnings (loss)	$	(22,346	)	$	18,553	$	(1,991	)	$	11,681		$	137,110		$	177,323		$	29,689
Fixed charges
Interest expense	$	12,866		$	11,602	$	45,434		$	28,418		$	1,254		$	12,719		$	29,703
Interest capitalized		—			—		—			14,394			26,462			12,855			1,526
Net amortization of debt discount, premium and issuance expense		1,545			1,642		6,806			4,868			1,251			1,355			1,452
Interest portion of rent expense		1,224			1,471		5,446			6,502			6,045			5,586			6,248
Total fixed charges	$	15,635		$	14,715	$	57,686		$	54,182		$	35,012		$	32,515		$	38,929
Ratio of earnings to fixed charges		—			1.26		—			.22			3.92			5.45			.76
Deficiency of earnings to cover fixed charges	$	37,981		$	—	$	59,677		$	42,501		$	—		$	—		$	9,240