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Inventories
9 Months Ended
Oct. 01, 2022
Inventory Disclosure [Abstract]  
Inventories Inventories
The Corporation's residential building products inventories, and a majority of its workplace furnishings inventories, are valued at cost, on the "last-in, first-out" (LIFO) basis. Remaining inventories are generally valued at the lower of cost, on the "first-in, first-out" (FIFO) basis, or net realizable value. Inventories included in the Condensed Consolidated Balance Sheets consisted of the following:
October 1,
2022
January 1,
2022
Finished products$156.0 $137.2 
Materials and work in process123.8 92.0 
LIFO allowance(57.6)(47.6)
Total inventories, net$222.2 $181.6 
Inventory valued by the LIFO costing method90 %84 %

In addition to the LIFO allowance, the Corporation recorded inventory allowances of $15.0 million and $19.9 million as of October 1, 2022 and January 1, 2022, respectively, to adjust for excess and obsolete inventory or otherwise reduce FIFO-basis inventory to net realizable value.