1/4" is the smallest we manufacture.
Yes. Ours was a bit long even after leaving enough to tuck in. Cut easily with household scissors.
Worked great fit well easy install
no this fits in the bottom of the garage door which just closes on a flat surface. there is a small lip inside the garage floor.it was very easy to install and you can look how to install on u-tube.
yes, tuck it in
Yes, just remove old seals and slide into place. Cut to length as needed.
no, I didn't need it
Make sure you check to see what size channels you have for the T-shaped ends. Look at what is in your door now and measure that seal. I guessed and went with a 1/4" seal and it is a bit small - it works OK however. Also, measure the length of your door to make sure you get the proper seal length. My doors are standard 10' and the seal was almost an extra foot long, so plenty of length.
3 inch width when laid flat before installing