Looking for bed cap/camper shell need best dimensions

Have been looking through the forum to find exact bed measurement of my Tacoma to get a bed cap/camper shell. Looking into the contractor caps with side doors and access to bed for extra secure storage for camping trips etc. I have been looking around on Craigslist but before pulling the trigger was hoping I could get some measurements to find best fit.

What is best length and width for a bed cover for a 2009 regular/single cab 2.7L 4x4 Taco?

Here is a link to the current cap I am looking into. https://indianapolis.craigslist.org/tls/d/swiss-caps-contractor-truck/6295916447.html

Thank you in advance for your help.

 

A bed cap that fits a Nissan Titan won't fit a Tacoma. There are hundreds of different sizes. Have you measured your own truck? It's rare for a seller to post measurements for some reason, most common is cap make/model and the exact truck it came off of.