KNOCK ON WOOD by AMII STEWART has sold 600,000 copies in Canada and United States.
KNOCK ON WOOD certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Canada |
100,000 | 1x Platinum | 1979 |
Canada Sales: 100,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1979
|
 United States |
500,000 | 1x Gold | 26 February, 1979 |
United States Sales: 500,000
Certification / note: 1x Gold
Certification Date / sales as of: 26 February, 1979
|
| Total sales | 600,000 | (in 2 countries) |
Total
Sales: 600,000
(in 2 countries)
|
Year-end chart performance for KNOCK ON WOOD
| Chart 1979 | Rank |
| Canadian Albums (RPM) |
21 |
| US Albums (Billboard 200) |
95 |
| Chart 2019 | Rank |
 Portuguese Music DVD (AFP) |
184 |
| Chart 2020 | Rank |
| Portuguese Music DVD (AFP) |
59 |