About Sailboat Mast You want to travel through the open seas full sail ahead, but getting out of the harbor is pretty tough without somewhere to put those sails. The sailboat mast is a pretty important part of the vessel. It holds the sails and all of the parts that hoist them up. Most modern sailboats have a single mast, but some larger yacht-sized boats have two or more. Masts were traditionally made of wood, but aluminum is lighter and much more durable, which makes aluminum sailboat masts more attractive for water sports. However, if you have an antique or specialty boat, you may want to look out for a wooden mast. A few sailing yachts have steel masts, which are heavier but stronger, meaning you can use a slimmer mast on a larger boat to reduce wind resistance. If you need a sailboat mast for handcrafting a wooden dinghy or restoring a sailing yacht, you can find a large inventory on eBay.