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Order Checklist In order to help us avoid any mistakes, please follow this simple guide when preparing your order:  | Where relevant please include project name, contractor, full delivery address and site contact. |  | The intended use of the brick should also be detailed, in case the use denotes different specification requirements. |  | Where different faces are required, than those featured in this brochure, please detail in the order. |  | Detail the brick name, colour and quantities, where relevant, please give the Brochure reference number too. |  | *Where handed bricks are required please state which hand. |  | Please be aware that Cradley Special Brick Company generally manufacture Perforated bricks. However should you require other types such as solid or frogged, please include this in your order. |  | For purpose made, bespoke specials please provide a 3D sketch illustrating dimensions and facing requirements. Timing for manufacture should also be considered in this case. | *Key to Specification Drawings Denotes that the brick is handed due to its shape being asymmetrical Denotes that bricks are handed id the surface has a textured finish. Specification  |  |  |  | | Bucket Handle (Keyed) | Flush | Recessed | Struck or Weathered | Classification of Bricks (by Compression Strength and Water Absorption) | | Class | Compression Strength N/mm2 | Water Absorption % by Mass | | Engineering 1 | >70 | <45 | Engineering 2 | >50 | <70 | | Damp Proof Course 1 | >5 | <45 | | Damp Proof Course 2 | >5 | <70 | | All others | | No Limits | Note: Damp Proof Course. Two Bricks are recommended for use in buildings where damp proof courses are required. Two bricks are recommended for external works. | Durability Designations | | Designation | Frost Resistance | Soluble Salt Content | | FL | Frost Resistant (F) | Low (L) | | FN | Frost Resistant (F) | Normal (N) | | ML | Moderately Frost Resistant (M) | Low (L) | | MN | Moderately Frost Resistant (M) | Normal (N) | | OL | Not Frost Resistant (O) | Low (L) | | ON | Not Frost Resistant (O) | Normal (N) | Note: Guidance on the selection of bricks and mortars for for use in a variety of environments, particularly where brickwork may be subjected to frequent freezing and thawing when saturated is given in BS5628 part 3. | Limit of Size - Metric Bricks | | Work Size | Overall Measurement of 24 Bricks | | Maximum | Minimum | | mm | mm | mm | 215 | 5235 | 5056 | | 102.5 | 2505 | 2215 | | 65 | 1605 | 1515 | Note: Where for special reasons closer limits of size are required this can be achieved by agreement between the specifier and the supplier. |