Polly Products does not require you to anchor your bench/table down. It is the customer's preference. We do sell optional anchor kits that are appropriate for many applications, including attaching to concrete or wood decks, or in-ground. The brackets for concrete/wood mounting are L-shaped and screws are included to mount it to the legs of your product (or the side slats on the trash and recycling containers). We don't include the fasteners to attach to the substrate, because wood and concrete use different and specific fasteners.  Those are available at any hardware store or lumber yard.  We also offer an auger-style anchor, for securing your items to the ground, and a spike-style anchor for mounting posts in the ground.