Garage door bottom seals come in two basic categories. There is the bottom astragal and the twin-contact bottom seal. The bottom astragal comes at 1-3/8" and 1-3/4" wide. Both sizes come in solid and foam synthetic rubber. The twin-contact bottom seals are at various widths: 1-3/8", 1-3/4" and 2". The 1-3/8" and 1-3/4" twin-contact garage door seals come with a c-channel or L-shaped design. The 2" wide garage door seal comes in the tongue & groove and C-channel designs. The C-channel is 5/8" high. We also sell grey vinyl and black synthetic rubber garage door seals for steel rolling doors.