Yes. But it comes pre painted so you only need to corner nail holes.
Up to 16 ft.
I use a small air nailer that uses a small diameter 2 inch nail.
yes, the longest I have seen in the stores were up to 16 footers
If you have a piece you can color match but paint does not adhere nicely to this. Use color matched caulk or nail stick for nail holes. caulk should be available at store , both available on line.
A garage qualifies as “interior”. These have to be painted, a quality gloss will be easy to keep clean.
color is white. any white caulk will work.
It's sold by the foot. I usually cut the length I need for one room at a time so I have little or no waste.
Ben, To better answer your question, please contact our HD.com customer service department at 800-430-3376 call any day between 6 a.m. and 2 a.m. EST, or call your local store, they can either answer your question or transfer you to your local store to answer your specific question.
Thank you for your recent inquiry with The Home Depot. The FINISHED ELEGANCE WG1866 5/8 in. x 5-1/4 in. MDF Base Moulding, White can be cut to length in our local Home Depots causing increase in unsalable product. The other one is only sold as 96 in long so has zero unsalable product. We appreciate your business and look forward to serving you in the future.