If you own 1700 stores, closing 20 of them is nothing more than aligning yourself with the market. Walmart do much the same. They close older stores and build new ones. Refit some of them etc. Where I live (metro ATL) there's a stretch of US-41 of say 5 miles. In that 5 miles, there's a closed Walmart, now a nightclub, a newly refitted regular Walmart that used to be a Supercenter, only about 10 years old, half of it closed down in the refit and downgrade from Supercenter, and a Brand spanking new Supercenter at the end of the 5 mile stretch. They just aligned themselves with the market.
HD did much the same a year or so ago. Closed a few stores, announced a few new ones.
Of course ATL is HD-ville. I must have 10 of them within 10 miles, so don't go to Lowes much, but they have a store right in the middle of the 5 mile stretch I was talking about.