**Exhibit12.1**

** **

**U-Store-It Trust**

**Computationof Ratio of Earnings to Fixed Charges**

**(dollarsin thousands)**

 
| ** **                                                                                 | ** ** | **Year Ended December 31,** | ** ** | **Three Months Ended March 31,** | ** ** |
|--------------------------------------------------------------------------------------------|------------|-----------------------------|------------|----------------------------------|------------|
| ** **                                                                                 | ** ** | **2005**                    | ** ** | **2006**                         | ** ** | **2007** | ** ** | **2008** | ** ** | **2009** | ** ** | **2009** | ** ** | **2010** | ** ** |
| **Earnings before fixed charges:**                                                         |       |                        |       |                             |       |   |   |   |   |   |   |   |   |   |   |
| **Add:**                                                                                   |       |                        |       |                             |       |   |   |   |   |   |   |   |   |   |   |
| Loss  from continuing operations                                                           |       | $                           | (4,576     | )                                | $          | (16,820 | ) | $ | (24,370 | ) | $ | (23,428 | ) | $ | (17,017 | ) | $ | (3,786 | ) | $ | (3,192 | ) |
| Fixed  charges - per below                                                                 |       | 34,229                      |       | 49,695                           |       | 56,192 |   | 54,192 |   | 47,831 |   | 11,899 |   | 11,652 |   |
| **Less:**                                                                                  |       |                        |       |                             |       |   |   |   |   |   |   |   |   |   |   |
| Capitalized  interest                                                                      |       | —                      |       | (35                              | )          | (108 | ) | (99 | ) | (73 | ) | (44 | ) | (43 | ) |
|                                                                                       |       |                        |       |                             |       |   |   |   |   |   |   |   |   |   |   |
| Earnings  before fixed charges                                                             |       | 29,653                      |       | 32,840                           |       | 31,714 |   | 30,665 |   | 30,741 |   | 8,069 |   | 8,417 |   |
|                                                                                       |       |                        |       |                             |       |   |   |   |   |   |   |   |   |   |   |
| **Fixed charges:**                                                                         |       |                        |       |                             |       |   |   |   |   |   |   |   |   |   |   |
| Interest  expense (including amortization premiums and discounts related to  indebtedness) |       | 33,952                      |       | 47,600                           |       | 55,880 |   | 53,943 |   | 47,608 |   | 11,836 |   | 11,590 |   |
| Early  extinguishment of debt                                                              |       | 93                          |       | 1,907                            |       | — |   | — |   | — |   | — |   | — |   |
| Capitalized  interest                                                                      |       | —                      |       | 35                               |       | 108 |   | 99 |   | 73 |   | 44 |   | 43 |   |
| Estimate  of interest within rental expense                                                |       | 184                         |       | 153                              |       | 204 |   | 150 |   | 150 |   | 19 |   | 19 |   |
|                                                                                       |       |                        |       |                             |       |   |   |   |   |   |   |   |   |   |   |
| Total  Fixed Charges                                                                       |       | 34,229                      |       | 49,695                           |       | 56,192 |   | 54,192 |   | 47,831 |   | 11,899 |   | 11,652 |   |
|                                                                                       |       |                        |       |                             |       |   |   |   |   |   |   |   |   |   |   |
| Ratio  of earnings to fixed charges (a)                                                    |       | 0.87                        |       | 0.66                             |       | 0.56 |   | 0.57 |   | 0.64 |   | 0.68 |   | 0.72 |   |
|                                                                                            |            |                             |            |                                  |            |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

 

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(a)  Due to our losses in fiscal 2005, 2006, 2007, 2008, 2009 and2010, the coverage ratio was less than 1:1. The Company must generate additional earnings of $4.6 million, $16.9million, $24.5 million, $23.5 million, $17.1 million, $3.8 million, and $3.2million to achieve a coverage of 1:1 in fiscal 2005, 2006, 2007, 2008, 2009,and the three months ended March 31, 2009 and 2010, repectively.

 

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