Consolidated Statement of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net sales	$ 427.8	$ 362.4	$ 789.3	$ 694.1
Operating costs and expenses:
Cost of sales	359.9	336.3	673.2	631.3
Depreciation and amortization	17.9	20.2	37.0	41.6
Selling and administrative	30.7	27.6	62.0	56.4
(Gain) loss on sale or impairment of long-lived assets, net	0.1	2.5	0.2	8.0
Other operating credits and charges, net	0.2	(0.6)		(1.4)
Non Cash Other Operating Charges And Credits	0.2	(1.5)	0	(1.5)
Total operating costs and expenses	408.8	386.0	772.4	735.9
Income (loss) from operations	19.0	(23.6)	16.9	(41.8)
Non-operating income (expense):
Interest expense, net of capitalized interest	(13.1)	(14.4)	(25.7)	(28.4)
Investment income	3.4	3.5	7.6	7.5
Gains (Losses) on Extinguishment of Debt	(52.2)	0	(52.2)	0
Other non-operating items	(2.6)	0.6	(2.7)	2.4
Total non-operating expense	(64.5)	(10.3)	(73.0)	(18.5)
Income (loss) from continuing operations before taxes and equity in losses of unconsolidated affiliates	(45.5)	(33.9)	(56.1)	(60.3)
Provision (benefit) for income taxes	(11.1)	(8.4)	(12.3)	(15.2)
Equity in loss (income) of unconsolidated affiliates	2.8	7.4	4.6	10.7
Income (loss) from continuing operations	(37.2)	(32.9)	(48.4)	(55.8)
Loss from discontinued operations before taxes	(0.1)	(4.1)	(0.3)	(4.1)
Benefit for income taxes	0	(1.6)	(0.1)	(1.6)
Loss from discontinued operations	(0.1)	(2.5)	(0.2)	(2.5)
Net income (loss)	(37.3)	(35.4)	(48.6)	(58.3)
Less: Net income (loss) attributed to non-controlling interest	0	0.1	0	0.2
Net income (loss) attributed to Louisiana-Pacific Corporation	(37.3)	(35.5)	(48.6)	(58.5)
Net income (loss) per share of common stock (basic):
Income (loss) from continuing operations	$ (0.27)	$ (0.25)	$ (0.35)	$ (0.43)
Loss from discontinued operations	$ 0.00	$ (0.02)	$ 0.00	$ (0.02)
Net income (loss) per share	$ (0.27)	$ (0.27)	$ (0.35)	$ (0.45)
Net income (loss) per share of common stock (diluted):
Income (loss) from continuing operations	$ (0.27)	$ (0.25)	$ (0.35)	$ (0.43)
Loss from discontinued operations diluted	$ 0.00	$ (0.02)	$ 0.00	$ (0.02)
Net income (loss) per share diluted	$ (0.27)	$ (0.27)	$ (0.35)	$ (0.45)
Average shares of stock outstanding - basic	137.0	131.4	136.8	131.3
Average shares of stock outstanding - diluted	137.0	131.4	136.8	131.3
Amounts attributed to LP Corporation common shareholders
Income (loss) from continuing operations, net of tax	(37.2)	(33.0)	(48.4)	(56.0)
Loss from discontinued operations, net of tax	(0.1)	(2.5)	(0.2)	(2.5)
Net loss attributed to Louisiana-Pacific Corporation	$ (37.3)	$ (35.5)	$ (48.6)	$ (58.5)