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Although the canonical should solve the issue, try adding a ? after your url and before your variables - that is the default way variables are declared and couple help solve problems. http://www.cyrusrugs.com/bridge-traditional-area-rug-item-7636&category_id=270&sizes=12x15,12x18&click=sizes to http://www.cyrusrugs.com/bridge-traditional-area-rug-item-7636**?**category_id=270&sizes=12x15,12x18&click=sizes You should also try Sam's suggestion.. although I too don't think should make a difference.

What you're seeing is normal. What you want to check is that the number of pages is the number you expect. From the SEOMoz FAQ on the Crawl Report: We are still seeing duplicate content on SEOmoz even though we have marked those pages as "noindex, follow." Any ideas why? SEOMoz is not a search engine index, it uses a crawler. If those pages are not blocked by the robots.txt file, then SEOMoz will crawl them. They ignore the noindex tag because they don't index anything. Search engines will honor the noindex tag and not index a page if you specify with the robots meta tag. However, to remove pages from the crawl, disallow them in the robots.txt or metarobots. (http://www.seomoz.org/help/crawl-diagnostics) Hope this helps.

What did you find out?