Automatic Door Bottoms
Overview
Automatic Door Bottoms provide effective sealing of under-door gaps.
Intastop Automatic Door Bottoms provide an effective barrier against draughts and weather, insects, rodents and other vermin, noise, light and smoke, odours and fumes. They also improve security by protecting against under door gap attack at a vulnerable position beneath the door leaf.
Activated by the opening and closing action of the door, Intastop Automatic Door Bottoms employ low-force, which does not conflict with lock/latch/closer operation, and do not require costly electrical connection or threshold obstruction to operate. They are self-levelling in the closed position.
411 Automatic Door Bottom is now available to suit Double Swing Hinges in single door situations.
Benefits:
• Tested to BS476: Part 20 & 22 for 30 & 60 minutes
• Works on smooth, hard and uneven surfaces
• Easy to install, non-handed and fully reversible
• Exceeds Building Regulations and DETR requirements
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Technical Information
Order Details
| Order Code | Description | Size (mm) | Gap Seal (mm) |
| 4301CRL | Non-handed Surface and Semi Mortice* | 838, 915, 1000, 1200 | up to 19 |
| 4131CRL | Non-handed Surface and Semi Mortice* | 838, 915, 1000, 1200 | up to 19 |
| 434ARL | Non-handed Full Mortice* | 838, 915, 1000, 1200 | up to 19 |
| 411ARL | Non-handed Full Mortice* | 838, 915, 1000, 1200 | up to 19 |
| 411ARL/DS | Automatic Door Bottom suitable for Double Swing Hinges* | 838, 915, 1000, 1200 | up to 19 |
*Morticed installations - measure full width of door. Surface mounted installations - measure between the stops.
Downloads
Colours & Finishes
Standard finish is Mill Aluminium.