DD240 Durasteel 4 Hour Access Hatch
| Leaf | Overall thickness | 28mm |
| Material: | 9.5mm thick Durasteel sheet | |
| Jointing construction: | Mitred and welded | |
| Frame: | Overall frame depth: | 60mm (FR7) |
| Material: | 60 x 60 x 6mm thick | |
| Jointing: | Mitred and welding | |
| Type and configuration | Single rebate/4-sided frame | |
| Finish: | Frame and leaf: | Standard shop applied zinc based primer, ready for site painting (P3) |
| Ironmongery: | 2 no.hook and ride hinges per leaf and recessed pull handle | |
| Certification: | BS 476: Part 22: 1987 |
| Dimensional Details | Ref | Single Leaf Doorset | Example Calculation |
| Structural opening width | A | A | 900mm |
| Structural opening height | B | B | 1000mm |
| Overall frame width | C | (A – 8 = C) | 892mm |
| Overall frame lengyh | D | (B – 8 = D) | 992mm |
| Door leaf width | E | (A – 25 = E) | 875mm |
| Door leaf length | H | (B – 26 = F) | 974mm |
Note: For maximum leaf sizes, configurations and options, please refer to Promat Technical Services Department Calculations based on standard specification.
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