FL21637 – MI Windows and Doors
Florida product approval FL21637-R18 for Windows – Single Hung, as listed in ProdApproval’s data as of Sep 29, 2026.
- FL#
- FL21637-R18
- Manufacturer
- MI Windows and Doors
- Code version
- 2023 Florida Building Code
- Status in our data
- Approved
- Products
- 10
Official record on floridabuilding.org →Use on a spec sheet →
Verify approval status on floridabuilding.org before submitting.
Approved products under FL21637-R18
| Approval # | Model | Description | Design pressure | Wind-borne debris | HVHZ | Outside HVHZ |
|---|---|---|---|---|---|---|
| FL21637.1 | 1620 SH | 48x84 Fin, Flange, Finless Frame | +50/-50 | No | No | Yes |
| FL21637.2 | 1620 SH | 52x63 Fin, Flange, Finless Frame | +50/-63 | No | No | Yes |
| FL21637.3 | 1620 SH Impact | 52x63 Fin, Flange, Finless Frame | +55/-63 | Yes | No | Yes |
| FL21637.4 | 1620 SH Impact | 38 x 75 Fin and Finless Frame, Insulated, Laminated Glass. | +50/-70 | Yes | No | Yes |
| FL21637.5 | 1620 SH Impact | 48x84 Fin, Flange, Finless Frame | +50/-50 | Yes | No | Yes |
| FL21637.6 | 1620 SH Impact | 52 x 75 Insulated Laminated Glass | +50/-50 | Yes | No | Yes |
| FL21637.7 | 1620/1621 SH | 37 x 72 Insulated Glass | +50/-67 | No | No | Yes |
| FL21637.8 | 1620/1621 SH | 48 x 96 Insulated Glass | +35/-45 | No | No | Yes |
| FL21637.9 | 1620/1621 SH | 48 x 84 Fin Frame Insulated Glass | +45/-45 | No | No | Yes |
| FL21637.10 | 1620/1621 SH | 52 x 75 Insulated Glass | +50/-50 | No | No | Yes |
Fill a spec sheet with FL21637
On the contractor form, go to the Windows – Single Hung row and type 21637 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.