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Permissible Weight Table

Permissible Weight Table

This table provides a guide to determine the maximum legal weight on any group of two or more consecutive axles. The table may be applied to inner axle groups such as the drive axles and the trailer or trailers, or the entire combination of axles from the steering axle of the power unit to the last trailing axle of the trailer.
The number for gross weight in pounds is the required distance in feet between the extremes of any group of two or more consecutive axles. The remaining column indicates the maximum weight for various numbers of axles in the group of axles being considered.
The maximum weights shown in the table are based on either of these formulas:

  • W=500 [(LN/(N-1)) +12N+36]
  • L=length and N=number of axles
 Distance in Feet       Axles
  2 3 4 5 6 7
4  34,000          
  34,000          
  34,000          
  34,000          
  34,000 34,000        
8+   38,000 42,000        
 39,000 42,500        
10   40,000 43,500        
11    44,500        
12    45,000 50,000      
13    45,500 50,500      
14    46,500 51,500      
15    47,500 52,000      
16    48,000 52,500 58,000    
17    48,500 53,500 58,500    
18    49,900 54,000 59,000    
19    51,400 54,500 60,000     
20    52,800 55,500 60,500  66,000  
21    54,000 56,000 61,000  66,500   
22    54,000 56,500 61,500  67,000   
23    54,000 57,500 62,500  68,000  
24    54,000 58,700* 63,000  68,500 74,000
25    54,500 59,650* 63,500  69,000  74,500 
26    55,500 60,600* 64,000  69,500  75,000 
27    56,000 61,550* 65,000  70,000  75,500 
28    57,000 62,500* 65,500  71,000  76,500 
29    57,500 63450* 66,000  71,500  77,000 
30    58,500 64,000* 66,500  72,000  77,500 
31    59,000 65,350* 67,500  72,500  78,000 
32    60,000 66,300* 68,500 73,000  78,500 
33      67,250* 68,500 74,000 79,000 
34      68,200* 69,000 74,500 80,000 
35      69,150* 70,000 75,000  
36      70,100* 70,500  75,500   
37      71,050* 71,050  76,000   
38      72,000* 72,000*  77,000   
39      72,000* 72,500  77,500   
40      72,000* 73,000 78,000   
41      72,000* 73,500 78,500   
42      72,000* 74,000  79,000   
43      72,000* 75,000 80,000   
44      72,000* 75,500    
45      72,000 76,000     
46      72,500 76,500    
47      73,500 77,500    
48      74,000 78,000    
49      74,500  78,500    
50      75,500  79,000     
51     76,000  80,000     

*These figures were carried forward from Article 6701d-11, Section 5(a)(4) when Senate Bill 89 of the 64th Texas Legislature amended it on December 16, 1974. The amendment provided that axle configurations and weights that were lawful as of that date would continue to be legal under the increased weight limits.

+These figures apply only to an axle spacing greater than 8 feet but less than 9 feet.

 

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