40 below tent floor???

Has anyone use this? Reviews or recommendations?

https://www.40below.com/products_detail.php?ProductID=10

We made our own from foamorder.com because the dimensions of the 40below sheets were such that we'd have to buy way too much to cover our tent (MH Trango 4). 

Having a tent floor on Denali was a nice luxury. We had 3 guys in a 4-person tent so having the extra floor totally insulated kept the tent extremely cozy. Would recommend for a long expedition where you're camping on snow and weight/space is not a huge issue. They are bulky - fine if strapped to a sled, less fine if strapped to a pack.

We were lucky enough to give ours to some Poles who were moving into our campsite when we left - score!

Ben Taggart wrote:

We made our own from foamorder.com because the dimensions of the 40below sheets were such that we'd have to buy way too much to cover our tent (MH Trango 4). 

Having a tent floor on Denali was a nice luxury. We had 3 guys in a 4-person tent so having the extra floor totally insulated kept the tent extremely cozy. Would recommend for a long expedition where you're camping on snow and weight/space is not a huge issue. They are bulky - fine if strapped to a sled, less fine if strapped to a pack.

We were lucky enough to give ours to some Poles who were moving into our campsite when we left - score!

Did you have a tent floor, foam pad and air mattress 

Or 

Just tent floor and air matress

I have seen cut to fit foam carpet pad in the Himalayas.  We didn't have it but geeee it was nice when visiting the neighbors.  I would think remnants would likely be available from carpet stores, though it would probably not be very durable.  Cheap and replaceable. 

I believe Lou Dawson used them on his Denali trip, or some variant.  Lots of worthwhile reading https://www.wildsnow.com/category/denali-mckinley-ski-climb/

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Skibo wrote:

I believe Lou Dawson used them on his Denali trip, or some variant.  Lots of worthwhile reading https://www.wildsnow.com/category/denali-mckinley-ski-climb/

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Seen this, hoping to hear others expierneces 

We used the 1/8" EVA closed-cell foam from FoamOrder, I believe it is exactly the same foam that 40Below sells. Only marginally cheaper though. 

I think I would have been fine with an X-Therm pad on just the tent floor, but I had a cut-up Z-Lite anyway (Cut 1/3 off a normal length one). The Z-Lite pad is really nice to have for sitting on in the cook tent or outside. I also used it under my torso while sleeping, but I'm not sure if it added any warmth. I was pretty warm with a -30F bag. 

This?

we used it on denali along with a foam pad and an inflatable, and I thought it was great. We had an MH tango 3 and we bought two sheets, taped them together and cut it down to size. It was really nice to not have the floor of the tent all cold and clammy, and I sleep cold so it was a nice addition. The foam weighs nothing and we folded it down to fit in the bottom of our sled.