Investors interested in Furniture stocks are likely familiar with American Woodmark (AMWD) and WillScot (WSC). But which of these two companies is the best option for those looking for undervalued stocks? Let's take a closer look.There are plenty of strategies for discovering value stocks, but we have found that pairing a strong Zacks Rank with an impressive grade in the Value category of our Style Scores system produces the best returns. The proven Zacks Rank emphasizes companies with positive estimate revision trends, and our Style Scores highlight stocks with specific traits.Right now, American Woodmark is sporting a Zacks Rank of #2 (Buy), while WillScot has a Zacks Rank of #3 (Hold). This means that AMWD's earnings estimate revision activity has been more impressive, so investors should feel comfortable with its improving analyst outlook. However, value investors will care about much more than just this.Value investors also tend to look at a number of traditional, tried-and-true figures to help them find stocks that they believe are undervalued at their current share price levels.Our Value category grades stocks based on a number of key metrics, including the tried-and-true P/E ratio, the P/S ratio, earnings yield, and cash flow per share, as well as a variety of other fundamentals that value investors frequently use.AMWD currently has a forward P/E ratio of 15.43, while WSC has a forward P/E of 27.75. We also note that AMWD has a PEG ratio of 1.71. This metric is used similarly to the famous P/E ratio, but the PEG ratio also takes into account the stock's expected earnings growth rate. WSC currently has a PEG ratio of 1.85.Another notable valuation metric for AMWD is its P/B ratio of 2.90. Investors use the P/B ratio to look at a stock's market value versus its book value, which is defined as total assets minus total liabilities. By comparison, WSC has a P/B of 3.31.Based on these metrics and many more, AMWD holds a Value grade of A, while WSC has a Value grade of D.AMWD is currently sporting an improving earnings outlook, which makes it stick out in our Zacks Rank model. And, based on the above valuation metrics, we feel that AMWD is likely the superior value option right now.Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report To read this article on Zacks.com click here.