| 4 7/8" Throat 16 Gauge Trimmed Opening Knock-Down Frame | mdisupply.com | 159.5 USD | 709.5 USD | −77.5% |
| 3 3/4" Throat 16 Gauge Knock-Down Frame, 90 Min Fire Labeled | mdisupply.com | 181.5 USD | 709.5 USD | −74.4% |
| 4 7/8" Throat 16 Gauge Knock-Down Frame, 90 Min Fire Labeled | mdisupply.com | 181.5 USD | 709.5 USD | −74.4% |
| 6 1/8" Throat 16 Gauge Knock-Down Frame, 90 Min Fire Labeled | mdisupply.com | 203.5 USD | 709.5 USD | −71.3% |
| ADJUSTABLE Throat Knock-Down Frame, 16 Gauge, ADJ-47 Throat Adjusts 4 1/2-inch - 7 3/4-inch, 90 min Fire Labeled | mdisupply.com | 275 USD | 825 USD | −66.7% |
| Knock-Down HEAD ONLY, 3 3/4" Throat, 16 Gauge, A40 Galv Steel | mdisupply.com | 44 USD | 132 USD | −66.7% |
| Knock-Down HEAD ONLY, 4 7/8" Throat, 16 Gauge, A40 Galv Steel | mdisupply.com | 44 USD | 132 USD | −66.7% |
| Commercial Steel Door, Honeycomb Core, 20 Gauge, Cylindrical Lock Prep, 90 min labeled | mdisupply.com | 293.7 USD | 798.6 USD | −63.2% |
| 7 3/4" Throat 16 Gauge Knock-Down Frame, 90 Min Fire Labeled | mdisupply.com | 264 USD | 709.5 USD | −62.8% |
| 4 7/8" Throat 16 Gauge Welded Frame, 90 Min Fire Labeled w/ DWZ & MAS Wall Anchors (for New Construction) | mdisupply.com | 280.5 USD | 709.5 USD | −60.5% |
| Knock-Down HEAD ONLY, 6 1/8" Throat, 16 Gauge, A40 Galv Steel | mdisupply.com | 55 USD | 132 USD | −58.3% |
| 4 7/8" Throat 16 Gauge Cased Opening Knock-Down Frame Reinforced for Double Acting Traffic Doors | mdisupply.com | 302.5 USD | 709.5 USD | −57.4% |
| Commercial Steel Door, Honeycomb Core, 18 Gauge, 86E Mortise Edge Prep, 90 min labeled | mdisupply.com | 388.3 USD | 798.6 USD | −51.4% |
| Commercial Steel Door, Honeycomb Core, 18 Gauge, Cylindrical Lock Prep, 90 min labeled | mdisupply.com | 388.3 USD | 798.6 USD | −51.4% |
| Commercial Steel Door, Polystyrene Insulated Core, 18 Gauge, 86E Mortise Edge Prep, 90 min labeled | mdisupply.com | 525.8 USD | 798.6 USD | −34.2% |
| Door/Frame Unit: Flush Commercial Steel Door with 10-inch x 10-inch (viewable) Metal Vision Kit, Knock-Down 4 7/8" Throat Steel Frame with Spring Hinges and an Entry Function Cylindrical Lever Lock, 90 min Fire Labeled | mdisupply.com | 852.5 USD | — | — |
| Door/Frame Unit: Flush Commercial Steel Door, Knock-Down Adjustable 4 1/2-inch - 7 3/4-inch Throat Steel Frame with Spring Hinges and an Entry Function Cylindrical Lever Lock, 90 min Fire Labeled | mdisupply.com | 671 USD | — | — |
| Door/Frame Unit: Flush Commercial Steel Door, Knock-Down 4 7/8" Throat Steel Frame with Spring Hinges and an Entry Function Cylindrical Lever Lock, 90 min Fire Labeled | mdisupply.com | 577.5 USD | — | — |
| Knock-Down HM Steel Borrowed Lite Window Frames x 4 7/8" Throat x 16 gauge Galv Steel - Includes HM Glazing Stop Molding & Tek Screws | mdisupply.com | 231 USD | — | — |