Hi Daniel, here's a Houzz thread that gives lots of insight and several good ideas! https://www.houzz.com/discussions/2607008/how-to-insulate-around-garage-door
Have you got weatherstripping installed already? Or a sweep type strip across the bottom of the door?
Those wider rolls of weatherstripping are great for a seal around the garage doors. You can get them at Home Depot.
Weatherstrips would work
weatherstrips will work
Hi! They make thick gaskets just for the garage. Go to any website including Home Depot , Lowes , Walmart or amazon and use their search feature to find what they have in stock. Good luck1
Here is some info for you:
Thanks for all the useful advice.
You could hang some fabric or something in front to block the draft
There are garage door insulation kits available at you local home improvement store.