| Construction | 18 Gauge Galvanized Steel |
| Curb Height, Curb Height (In.) | 12 in |
| Curb Inside Dimensions | 24.5 in x 24 1/2 in |
| Curb Inside Length | 24.5 in |
| Curb Inside Width, Curb Square I.D. (In.) | 24 1/2 in |
| Curb Outside Dimensions | 27 1/2 in x 27 1/2 in |
| Curb Outside Length, Curb Outside Width, Curb Square O.D. (In.) | 27 1/2 in |
| Flashing Flange (In.), Flashing Flange Width, Mounting Flange Surface W (In.) | 2 in |
| For Fan Base Size | 29 in |
| For Use With | 29 in Square Base |
| Item | Roof Curb |
| Overall Dimensions H x L x W, Overall H x W, Overall W x L, Overall Width | 31 1/2 in |
| Standards | UL 705 |
| Type | Fixed, Nonventilated |
| Use w/Dayton Ventilators | Having a 29 in Square Base |
