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Please see liters (volume) guide below. Please note the below dimensions are only a guide or indicator, we can custom “fine tune” to your requirements. Contact us for more information . 
| LENGTH | WIDTH | THICKNESS | LITRES |  
| 6'4 | 20 1/4 | 2 3/8 | 34.50 |  
| 6'8 | 20 1/2 | 2 1/2 | 39 |  
| 7'0 | 20 3/4 | 2 5/8 | 43.50 |  
| 7'4 | 20 7/8 | 2 3/4 | 48 |  
| 7'8 | 21 | 2 7/8 | 53 |  
| 8'0 | 21 1/4 | 3 | 58 |  
| 8'4 | 21 1/2 | 3 1/4 | 67 |