This project started out badly and went down hill from there.
I had an idea, but no plan, which is not the best of ideas.
Got my 1.6 Silpoly from RSBTR and proceeded to cut the fabric in two places while opening the package. Not badly, but this is not my first rodeo. Went with 1.6 for this tarp because it's not for backpacking and it will live in my back yard.
Sewed the two halves together, pushing my way through a couple of nasty problems. The thread was a freebie from Kyle - nice gesture, but my 1957 vintage Emdeco hates Mara thread. Spent some quality time with my seam ripper and will have some touch up work to do when spring rolls around.
The new 58-60" width on fabric wasn't going to cut it so I ordered a different color for the bottom trim to cut in half lengthwise to make a 28" bottom panel. Attached it along with the tie outs with four on each side so I could close off the ends with doors.
Helpful hint: making the sides longer than the ridge line is not a good idea if you don't do it the way a real winter tarp is cut.
Needed a stool to stand on to hang it up and get it suspended properly.
Hauled it back inside and added 2 pole mods. Helped, and I could hang it lower, but still couldn't close the doors all the way. Moved the inside tie outs 6" further from each end and that worked, but the doors were still a bit floppy. Added some omni tape in a few spots along the door edges and that actually worked.
The name and shape of this thing did not take place until I stepped out the back door one morning and thought, "That looks just like an outfitters tent." Those are pretty common around here if you spend any time wandering around in the mountains looking for meat in the fall.
The only good thing about the pix is that you can't see the stitching.