My First Pyramid Shelter – 9x9x5' – Cat Curve Feedback?

I go with an offset of 1/4″ to 1/2″ per foot depending on what the impact is. I went with a 2″ offset over a 96″ seam (1/4″ per ft) from ground to peak and I have a tight pitch (https://backpackinglight.com/forums/topic/finished-my-tipi-hot-tent-picture-heavy/)

You can certainly have a more aggressive curve but it ends up cutting into the head room, which I why I stuck towards the bottom of my range.

…going from 3″ to 2″ is going to gain a fair bit of headroom for you.

Nice tipi, and thanks for the info! I’ve heard that as the angle of the ridge decreases (ie a pyarmid has a 90 deg ridge angle, a 6 sided tipi has a 60 deg ridge angle) the depth of the cat curve can be reduced, with a similar level of panel tightness being achieved. Any thoughts / experience on this matter?

That does make sense…I still expect that with a 60″ tall mid you’d be fine with 2″ offset so long as your seams are following the curve closely (ie, a curved line…not a wavy line that follows a curve). My tipi is ~80″ so the ratio is still pretty similar after accounting for all of this

Cool – thanks for the info. I think I’ll go with 2″, and I’ve also decided to go with silpoly 1.1oz, instead of silpoly pu4000. Not looking forward to re-doing all the cat curve measurements, though =P