Grillustration: Snake Method
Wood Sticks    
If you like to go big, you likely have a big stick burner. This is typically a horizontal offset cooker with a dedicated firebox. The drier, the better. Find a local source for hickory, oak, pecan, or mesquite wood, and get smokin’. To locate a source near you, a Google search usually turns up great prices when you key in firewood. Craigslist or Facebook marketplace are also great places to purchase wood locally.
Wood Chips and Chunks  
If you are working with backyard grills, you’ll likely be working with wood chips and chunks. I find it is easy to keep these fully stocked year-round, at least in the south. Hickory is almost universally good, but you’ll be able to find cherry, oak, mesquite, and applewood at most any Walmart. I recently noticed they keep a wide selection in various sized bags during the spring and summer months. I also keep a current list of exotic wood providers on the resources page at BarbecueTricks.com.
Wood Pellet Magic
Pellet grills are one of my favorite tricks. The compressed sawdust pellets burn cleanly and efficiently. Plus, they can be found in every flavor imaginable. If you are looking for something new, try charcoal pellets. They offer some of the unique characteristics of charcoal and are made specifically for the pellet grill. Mix them with your favorite wood, and proponents claim you’ll get a better smoke ring thanks to the higher burn temperature. It’s the best of both worlds.
Pellets not only add flavor, but they are also your only heat source, so you’ll go through a lot. Expect to burn about a half a pound of pellets for every hour of smoking on your pellet grill’s lowest setting. At the highest setting of around 450°F, I’ve tracked a burn rate of over two pounds an hour. The downside is that pellets can get pricey. Look for sales at the big box stores during the start of summer. The typical price online is a buck a pound, but deals are out there. The best price I’ve ever seen (and I have been really hunting) is $15 for a 40-pound bag at Lowes on Memorial Day weekend.
Food-Grade Wood Pellets
I’ve found jaw-dropping prices on pure oak pellets at Tractor Supply. Alas, these pellets are not FDA approved for use in cooking. I have never heard an official reason. The bags say 100% all-natural pure oak. However, a rabbit hole search on the internet has me afraid of getting the bag with a stick of arsenic-laced woodshop scraps. Smoke at your own risk!
{BONUS TRICK} One preventable drawback to wood pellets is the large amount of wood dust they can shed. This dust can accumulate in your grill’s pellet hopper and be a pain to clean. Instead, seek a clean 12-inch metal soil sieve/sifter, and you can screen out the debris before you reload.
Flavors of Wood  
With barbecue wood chunks, pellets, and chips, you can find just about any “flavor” under the sun. Pitmaster blends are typically a blend of hickory and oak. You can also blend endless combinations of your favorites. Here are a few of the best types of wood, and their attributes, for cooking, including a few new VERY unique special flavors of pellets.
WOOD FLAVORS
Acacia
Mesquite family; strong, good for most meats and vegetables
Alder
Delicate with a hint of sweetness; good for fish, pork, poultry, light-meat game birds; great with salmon
Almond
Nutty & sweet smoke flavor, light ash; good with all meats
Apple
Slightly sweet, but dense, fruity smoke flavor; good for beef, poultry, game birds, pork and ham
Apricot
Milder flavor and sweeter than hickory; good on most meats
Ash
Fast burning, light, distinctive flavor; good with fish and red meat
Birch
Medium hardwood with a flavor like maple; good with pork and poultry
Cedar
Used for plank cooking. Typically for salmon or shrimp; try shingles, too
Cherry
Slightly sweet, fruity smoke flavor; good with all meats
Cottonwood
Very subtle in flavor; good on most meats
Grape Vines
Aromatic, similar to fruit woods; good with all meats
Grapefruit
Medium smoke flavor with a hint of fruitiness; excellent with beef, pork, and poultry
Hickory
Pungent, smoky, bacon-like flavor, the most common wood used; good for all smoking, especially pork and ribs – most popular grilling wood in the south
Lemon
Medium smoke flavor with a hint of fruitiness; excellent with beef, pork, and poultry
Lilac
Very light, subtle with a hint of floral; good with seafood and lamb
Maple
Mild smoky, somewhat sweet flavor; good with pork, poultry, cheese, vegetables, and small game birds
Mesquite
Strong, earthy flavor, most meats, especially beef, most vegetables – most popular grilling wood in Texas
Mulberry
Sweet smell and will remind you of Applewood; great for beef, poultry, game birds, pork, and ham
Nectarine
The flavor is milder and sweeter than hickory; good on most meats
Oak
The second most popular wood, heavy smoke flavor, red oak is considered the best by many pitmasters; good with red meat, pork, fish, and heavy game
Orange
Medium smoke flavor with a hint of fruitiness; excellent with beef, pork, and poultry
Peach
Slightly sweet, woodsy flavor; good on most meats
Pear
Slightly sweet, woodsy flavor; poultry, tasty with game birds and pork
Pecan
More like oak than hickory, and not quite as strong; good for most meats, and great for nuts
Pimento
Spicy, similar to mesquite, the wood of the allspice (pimento) berry, which is the choice wood for jerk chicken
Plum
Milder and sweeter than hickory; good on most meats
Post Oak
This Texas oak gets its name from the wood that is used as the popular choice for fence posts. It is, in fact, a distinct species of oak. Very similar to white oak
Walnut
Very heavy smoke flavor, usually mixed with a lighter wood, like Pecan or Apple, and can be bitter if used alone or not aged; good for red meats and game
Blends and Novelty Mixes
I’ve been surprised by the speed at which companies are creating new flavors and blend options, specifically for wood pellet grills. Here are a few unique pellet options if you like to get more adventurous in your barbecue.