Lets talk about the importance of fire ratings on our safes. I'm in the market for a new safe, and fire resistance is a must as this will serve a dual purpose of both projecting my firearms, and other valuables/documents/etc.

Most of what I'm finding has an ETL certified rateing of 1200-1400 degree's for 30 minutes. However, I see some brands/sizes boasting 90 minutes protection.

Specifically, I'm looking at the Stack-On safes sold in my area at Dick's sporting goods, and Cannon brand sold at Tractor Supply Co. (both are local, and both brands have good reviews and similar fire ratings as brand costing 2x the price, both are 28 gun safes). The Stack-On brand has a 1400 degree rating for 30 minutes, the Cannon is 1200 degree for 60 minutes with some models rated at 90 minutes.

At what temperatures (interior) are items damaged? Does anyone have first hand experience with either brand? Does anyone have first hand, or even second hand experience with a safe that's been through a fire?

Go with the Cannon. Amongst all the fires this weekend in CA, I saw a resident who lost his house being interviewed on the news. His house was leveled, and the only thing left was his safe. He kept his titles, deeds, etc in the safe and everything was amazingly intact. Literally the ONLY thing left standing. Cannon has the best warranty and is DOJ approved. The tractor supply deal is killer IMO.