Yes, it won't be as quick as with a smaller branch but doable. Remember these saws aren't like bow saw that has attachment on both ends, so you can pull it almost all the way out with only an inch or two still inside the tree, so this effectively made the saw longer.

I've cut 4" wood with my 7" saw, getting slow but can be done.

GradyT34 mentioned about the possibility of a 10" limb or tree coming through the roof of his home during a hurricane. If this were me and I was planning to cut up any potential fallen trees of this size with a handsaw such as the Genki-Temagari 500 or the Katanaboy, considering their price at close to $200.00 per, I would instead be looking at a good used chainsaw which depending on the area and local supply / demand, can be had for not much more then either of these saws.

Yeah, I don't think I'd buy them either at that price point, but they are a lot easier to pack and use than a chainsaw so I can see their advantages.

Actually, the trees and limbs that crush houses around here during hurricanes are mostly water oaks. They're notorious for falling over (roots and all) or for having humongous limbs splitting off and falling straight down onto a roof. The trunks and limbs most likely to go interloping are from mature, hollow and half rotten 40" and larger (sometimes a lot larger) trees that are already way too close to houses to begin with. Live oak and bald cypress trees in my area are the trees of choice in that they withstand hurricanes much better and are beautiful.

If your going to salvage a house with a tree in it, it's sometimes best to use an industrial back hoe or even in some cases, a track hoe (something like a Cat 320). And it's best to not touch anything until you have an enforceable agreement with the insurance underwriter (which can sadly take months after you get their attention).

I have a number of chainsaws and rotate them to the end that when I'm in the field on crew projects, we start every day with four or five saws that actually run (i.e. start right up) and have been sharpened.

As to preparing for the occasional hurricane, I test and then set several mid-range Stihls on my kitchen floor relative to helping out later if someone is struggling.

Trust me, after a major storm passes through (Rita, Andrew, Audrey, Ike, Camille, Gustav, Betsy and Katrina come to mind) you'll be grateful for every chain saw and any other kind of saw, ax, hatchet or sharp object you can get your hands on.

I ordered one of these yesterday from Amazon, it was on sale (Price drop 22% since I Wish-Listed it), and since I needed something to get me over $25 for free shipping, I jumped on it.

Can't wait to get it... There's some tree's growing up in my Alley I'm gonna take care of once and for all!