EXHIBIT 12
 
                              UNITED RENTALS, INC.
 
         STATEMENT OF COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
 


                                                                    
                                                                    
                          PERIOD FROM AUGUST 14,                    
                         1997 (INCEPTION) THROUGH   SIX MONTHS ENDED
                            DECEMBER 31, 1997        JUNE 30, 1998  
                         ------------------------ ------------------
                                                           
Earnings:                                                           
  Income before                                                     
   provision for income                                             
   taxes................         $ 54,138            $13,913,219    
  Interest expense......          454,072              4,936,708    
  Amortization of debt                                              
   issuance cost........           38,332                261,919    
  Interest portion of                                               
   rent expense(1)......          174,917              1,781,833    
                                 --------             ----------    
    Earnings as                  $721,459            $20,893,679    
     adjusted...........         ========             ==========     
Fixed charges:                                                       
  Interest expense......         $454,072             $4,936,708     
  Amortization of debt                                               
   issuance cost........           38,332                261,919     
  Interest portion of                                                
   rent expense(1)......          174,917              1,781,833     
                                 --------             ----------     
    Fixed charges.......         $667,321             $6,980,460     
                                 ========             ==========     
Ratio of earnings to                                                 
 fixed charges..........              1.1x                   3.0x    

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(1) The interest portion of rent expense is estimated to be one-third of rent
    expense.