SC 13G


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No Four)

NORBORD INC.
..........................................................................
(Name of Issuer)

COMMON SHARES
........................................................................
(Title of Class of Securities)

65548P403
..........................................................................
(CUSIP Number)

December 31, 2020
.................................................

(Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant
to which this Schedule is filed:

[x] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[ ] Rule 13d-1(d)



*The remainder of this cover page shall be filled out for a
reporting person's initial filing on this form with respect to
the subject class of securities, and for any subsequent amendment
containing information which would alter the disclosures provided
in a prior cover page.

The information required in the remainder of this cover page shall not
be deemed to be "filed" for the purpose of Section 18 of the
Securities Exchange Act of 1934 ("Act") or otherwise subject to the
liabilities of that section of the Act but shall be subject to
all other provisions of the Act (however, see the Notes).

CUSIP No. 65548P403

(1)Names of reporting persons. I.R.S. Identification
Nos. of above persons (entities only)
       LETKO, BROSSEAU & ASSOCIATES INC.

(2) Check the appropriate box if a member of a group (see instructions)
(a)
(b)

(3) SEC use only

(4) Citizenship or place of organization     CANADA
Number of shares beneficially owned by each reporting person with:

(5)Sole voting power   	3,849,712


(6)Shared voting power


(7)Sole dispositive power	3,849,712


(8)Shared dispositive power

(9)Aggregate amount beneficially owned by each reporting person

	3,849,712

(10)Check if the aggregate amount in Row (9) excludes
certain shares (see instructions)

(11)Percent of class represented by amount in Row 9

		4.8%

(12)Type of reporting person (see instructions)

	FI








Item 1.
Item 1(a) Name of issuer: NORBORD INC.

Item 1(b) Address of issuer's principal executive offices:
	1 Toronto Street, Suite 600
	Toronto, ON
	M5C 2W4
	Canada

Item 2.
2(a) Name of person filing:
	Letko, Brosseau & Associates Inc.
2(b) Address or principal business office or,
if none, residence:
	1800 Mc Gill College Av.
	Suite 2510
	Montreal, QC
	H3A 3J6
	Canada

2(c) Citizenship:

	 Canada

2(d) Title of class of securities:

	Common Shares

2(e) CUSIP No.: 65548P403


Item 3.

If this statement is filed pursuant to Rules 13d-1(b), or 13d-2(b) or (c),
check whether the person filing is a:
a. [ ] Broker or dealer registered under Section 15 of the Act.
b. [ ] Bank as defined in Section 3(a)(6) of the Act.
c. [ ] Insurance company as defined in Section 3(a)(19) of the Act.
d. [ ] Investment company registered under Section 8 of the
Investment Company Act of 1940.
e. [ ] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);
f. [ ] An employee benefit plan or endowment fund in accordance with
Rule 13d-1(b)(1)(ii)(F);
g. [ ] A parent holding company or control person in accordance with
Rule 13d-1(b)(1)(ii)(G);
h. [ ] A savings associations as defined in Section 3(b) of the
Federal Deposit Insurance Act (12 U.S.C. 1813);
i. [ ] A church plan that is excluded from the definition of an
investment company under section 3(c)(14) of the Investment Company Act of 1940;
j. [x] A non-U.S. institution in accordance with Rule 13d-1(b)(1)(ii)(J);
k. [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(K).

Item 4. Ownership

Provide the following information regarding the aggregate number
and percentage of the class of securities of the issuer identified in Item 1.
a. Amount beneficially owned: 3,849,712
b. Percent of class: 4.8%
c. Number of shares as to which such person has:
i. Sole power to vote or to direct the vote: 3,849,712
ii. Shared power to vote or to direct the vote
iii. Sole power to dispose or to direct the disposition of: 3,849,712
iv. Shared power to dispose or to direct the disposition of



Item 5.

Ownership of 5 Percent or Less of a Class. If this statement is being
filed to report the fact that as of the date hereof the reporting person
has ceased to be the beneficial owner of more than 5 percent of the class
of securities, check the following [X].



Item 6. Ownership of More than 5 Percent on Behalf of Another Person



Item 7. Identification and Classification of the Subsidiary Which
Acquired the Security
Being Reported on by the Parent Holding Company or Control Person.

Not Applicable



Item 8. Identification and Classification of Members of the Group

Not Applicable



Item 9. Notice of Dissolution of Group

Not Applicable



Item 10. Certification
By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were acquired and
are held in the ordinary course
of business, were not acquired and are not held for the purpose of or
with the effect of changing or influencing the control of the issuer
of the securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose or effect.





Signature

After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true,
complete and correct.


Dated : January 25, 2021



Signature  Isabelle Godin

Name/Title:	Isabelle Godin
       Vice President Operations and Chief Financial Officer