Type IA Wood Extension Ladder
Hemlock Rails: 1?" x 3"
Ash Rungs: 1¼"
• Spring Locks
• Rung Braces (Top & Bottom)
* 36' & 40' have 1?" x 3½" Hemlock Rails.
19½" Overall Width
| MODEL | LENGTH | TOTAL LENGTH | WORKING WT. |
| NBE16 | 16 ft. | 12 ft. | 44 lbs. |
| NBE20 | 20 ft. | 16 ft. | 51 lbs. |
| NBE24 | 24 ft. | 20 ft. | 62 lbs. |
| NBE28 | 28 ft. | 24 ft. | 73 lbs. |
| NBE32 | 32 ft. | 28 ft. | 80 lbs. |
| *NBE36 | 36 ft. | 32 ft. | 99 lbs. |
| *NBE40 | 40 ft. | 35 ft. | 108 lbs. |
| * 36' & 40' have 13⁄8" X 31⁄2" hemlock rails | |||
American National Ladder Institute | Occupational Society and Health Act |