Measurements of the Double Cab rear sliding window? 2.5 gen

Hopefully upgrading to a Tundra soon and I plan on putting a bed cap on and camping in it. I wasn't sure if id be able to crawl through the rear window from the cap or it'd be too small. No double cab tundras nearby to measure and I didn't see anything online. Anyone know the measurements of the window opening? Thank you.

 

A CrewMax full width power rear window is the only one you'll be able to crawl through with any ease and consistency without being a 100lb kid or a cirque de sole contortionist necessary for the DC slider. I've seen the slider on my buddy's DC and it's small, but I can't give you an actual size opening. Remember too that even if you can "fit" you would be crawling over the rails which would be rather uncomfortable to say the least.

 

Welcome from NY.
There is no way you will be able to crawl thru a DC sliding rear window.