The Triangle's last Borders bookstore is finishing its liquidation sale and is scheduled to close for good on Monday.

The final days at the store on Six Forks Road in North Raleigh will feature discounts of up to 90 percent on all remaining merchandise and store fixtures. All sales are final.

All 359 Borders remaining nationwide are scheduled to close by mid-September. The chain fell victim to weaker consumer spending, and increasing competition from Amazon, Walmart and other powerful rivals.

Borders closed its five other Triangle stores earlier this year after filing for bankruptcy. Another store at Raleigh-Durham International Airport closed recently after its liquidation sale.

RDU officials are still working to find a new tenant for that spot in Terminal 2.

The closures leave large empty spaces across the Triangle for retail landlords to refill during an economic slump.

The last Borders in this region, in the Six Forks Station Shopping Center, is 27,000 square feet. The shopping center's property manager didn't return calls seeking comment.

The Borders bookstore at Raleigh-Durham International Airport, which was spared when the bankrupt chain closed other local stores, has dodged another bullet.

Borders Group on Thursday asked a bankruptcy court for permission to close 51 additional stores. The RDU store was on that list, but late Thursday night, Borders spokeswoman Mary Davis said that the location is no longer in jeopardy because RDU agreed to extend a lease-negotiation period.

She declined to provide further details.

"The caveat to that is we can never guarantee a store will remain open indefinitely, but the landlord agreed to the lease extension," Davis wrote in an e-mail.

There was some delay in receiving paperwork from Borders, but RDU agreed to give Borders more time to decide whether to accept or reject the lease, which runs through 2015, said RDU spokesman Andrew Sawyer.

The Borders in RDU's Terminal 2 opened in 2008 and has been one of the most successful retail spots at the airport, Sawyer said.