can dark oak flooring be lightened?

There's no such thing as Dark Oak without a stain having been applied. So yes, you'd just sand the Dark Stain off and be left with almost white to finish as is or stain as light as you desire.
Reply to

Site Timeline Threads

HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.