FL18644 – MI Windows and Doors
Florida product approval FL18644-R11 for Windows – Fixed, as listed in ProdApproval’s data as of Sep 29, 2026.
- FL#
- FL18644-R11
- Manufacturer
- MI Windows and Doors
- Code version
- 2023 Florida Building Code
- Status in our data
- Approved
- Products
- 6
Official record on floridabuilding.org →Use on a spec sheet →
Verify approval status on floridabuilding.org before submitting.
Approved products under FL18644-R11
| Approval # | Model | Description | Design pressure | Wind-borne debris | HVHZ | Outside HVHZ |
|---|---|---|---|---|---|---|
| FL18644.1 | 3500 PW | 81x63 Fin Frame | +50/-50 | No | No | Yes |
| FL18644.2 | 3500 PW | 81x63 Finless Frame | +35/-35 | No | No | Yes |
| FL18644.3 | 3500 PW | 60x96 | +50/-50 | No | No | Yes |
| FL18644.4 | 3500 PW | 96x60 | +50/-60 | No | No | Yes |
| FL18644.5 | 3500 PW | 96x72 Fin Frame | +50/-55 | No | No | Yes |
| FL18644.6 | 3500 PW | 72x60 | +50/-75 | No | No | Yes |
Fill a spec sheet with FL18644
On the contractor form, go to the Windows – Fixed row and type 18644 in the Florida Product Approval # box to fill the row. Walton County users can print a PDF that follows the county’s sheet; see the Walton County Product Approval Specification Sheet guide.