The National Institute of Standards and Technology (NIST) report on WTC7 is garbage:
During the past two years, the following error and two omissions came to light. The NIST report:
gave an incorrect value for the width of the seat for girder A2001 at column 79
failed to mention stiffeners that provided support for girder A2001
failed to mention lateral support beams which supported beam G3005 (connected "to girder A2001) which allegedly buckled.
Source: Researchers Find Flaws in NIST’s WTC7 Theory, Scientists for 9/11 Truth.