Find cheap wooden crates by checking at wine stores, pubs and bars for empty wine crates. Also, look for cheap wooden crates in craft stores, such as Michael's, and on websites, such as Save-On-Crafts.com. Check at the nearest Goodwill thrift store and on Craigslist.org regularly for cheap wooden crates.
It is possible to get wooden crates for free by asking for them at places that sell large quantities of wine, such as wine shops and liquor stores. Some store owners charge for these empty crates, but the majority give them away for free. In addition, ask around at pubs or bars to see if they have any empty wooden wine crates to spare.
Another option is to ask a person who has just had a party if he has any empty wooden wine crates that he doesn't need anymore. Likewise, ask a caterer who has worked on a large event, such as a wedding reception, if empty wooden crates are left over from the wine ordered.
Craft stores, such as Michael's and JoAnn Fabrics, and craft websites, such as Save-On-Crafts.com, regularly stock cheap wooden crates for use in various projects. These crates come in several different sizes, colors and styles. As of October 2015, the general price for a small wooden crate at one of these stores or websites was less than $20.