Garage door bottom seals come in three main fits: T-end and bead-end seals that slide into a retainer on the door's bottom bar, bulb seals that close larger or uneven gaps, and floor-mounted thresholds. To order the right one, measure four things: retainer type, retainer slot width (mm), door width, and the largest gap to the floor. A photo of the old seal's cut end next to a ruler settles most questions.
Which garage door bottom seal types are there?
| Type | Fits | Use |
|---|---|---|
| T-end | Single or double T-slot retainer | Most sectional doors |
| Bead-end | Retainer with round slots | Sectional doors with bead retainers |
| Bulb / U-shape | Retainer or bottom bar | Uneven floors, larger gaps |
| Roll-up / shutter seal | Bottom bar of roll-up doors | Flat or bulb seal |
| Threshold | Glued to the floor | Extra water barrier, uneven floors |
How do I measure a garage door bottom seal?
- Look at the end of the door's bottom bar and note the retainer type.
- Measure the inside width of the retainer slot.
- Measure the full door width.
- Close the door and measure the largest gap to the floor.
- Photograph the end of the old seal next to a ruler.
PVC or EPDM?
PVC is economical and fine in mild climates; it stiffens below about –10 °C. EPDM stays flexible from about –40 °C, so choose it for cold winters and doors in direct sun.
How do I order?
Send the measurements and photo. We supply bottom seals and thresholds from 10 m, in rolls or cut to your door width; indicative FOB prices start from US$0.06/m. See garage door seals.
Quick questions
Can I replace a garage door bottom seal myself?
Yes – open the door to waist height, slide the old seal out of the retainer, spray the slot with soapy water and slide the new seal in from one end.
Need a seal for this?
Send your section, gap size or a photo of the old seal – Dora replies usually within 2 hours. Door bottom seals are available from 10 m.