13G Filing: Stadium Capital Management and Builders Firstsource Inc. (BLDR)

Item 1.

(a) Name of Issuer

Builders FirstSource, Inc.

(b) Address of Issuer’s Principal Executive
Offices

2001 Bryan Street, Suite 1600, Dallas, TX 75201

Item 2.

(a) The names of the persons filing
this statement are:

Stadium Capital Management, LLC (“SCM”); Stadium Capital Management GP, L.P. (“SCMGP”); Alexander M. Seaver
(“Seaver”); Bradley R. Kent (“Kent”); and Stadium Capital Partners, L.P. (“SCP”), (collectively,
the “Filers”).

SCP and SCMGP are filing this statement
jointly with the other Filers, but not as a member of a group and expressly disclaims membership in a group.

(b) The principal business office of
the Filers is located at:

199 Elm Street, New Canaan, CT 06840-5321.

(c) For citizenship of Filers, see
Item 4 of the cover sheet for each Filer.

(d) This statement relates to shares
of common stock of the Issuer (the “Stock”).

(e) The CUSIP number of the Issuer
is: 12008R107