Filed pursuant to Rule 424(b)(3)
Registration Statement No. 333-142472

PROSPECTUS SUPPLEMENT NO. 6
(to prospectus dated April 30, 2007)

3,927,120 Shares
First Industrial Realty Trust, Inc.
Common Stock

     This prospectus supplement supplements the prospectus dated April 30, 2007 (the “Prospectus”), relating to the potential offer and sale from time to time of up to 3,927,120 shares of common stock of First Industrial Realty Trust, Inc.

     The table under the Selling Stockholders Section of the Prospectus is amended to replace the information regarding Old Lane US Master Fund L.P., Old Lane HMA Master Fund L.P. and Old Lane Cayman Master Fund L.P. with the information set forth opposite their names below, and to add the information set forth below regarding Old Lane GMA Master Fund L.P.:

Percentage

Number of

of shares

Number of Shares

Number of

Shares owned

owned after

owned

shares

after the

the offering

Name

before the offering

offered hereby

offering (2)

(2)(3)

Old Lane US Master Fund L.P. (14)

431,532

431,532*

0

+

Old Lane HMA Master Fund L.P. (15)

171,988

171,988*

0

+

Old Lane Cayman Master Fund L.P. (16)

492,696

492,696*

0

+

Old Lane GMA Master Fund L.P. (34)

139,786

139,786*

0

+

     This prospectus supplement is not complete without, and may not be delivered or used except in connection with, the Prospectus dated April 30, 2007, including any supplements or amendments to such Prospectus. The date of this prospectus supplement is October 12, 2007.