Termites can turn a sturdy park bench into a crumbling mess before you notice. The good news is prevention is mostly about moisture control, wood choice, and regular checks.
Start by choosing the right wood. If you're building or replacing a bench, naturally resistant species like cedar, redwood, teak, or pressure-treated lumber made for ground contact give you a head start. If you already have a bench made from untreated pine or another vulnerable wood, don't panic — you can still harden its defenses.
Keep the bench off the ground. Termites need moisture and easy access from soil. Set the legs on concrete pavers, stone blocks, or metal stands, and leave a few inches of air space underneath. Never let soil, mulch, or leaves pile up against the legs or seat. Rake back wood chips and damp debris regularly, especially in shaded areas.
Seal and maintain the wood. Exposed end grain and cracks are entry points. Sand rough spots, fill small cracks with wood filler, and apply an outdoor wood sealer, stain, or paint. Reapply according to the product schedule. A sealed bench sheds water faster, and drier wood is far less attractive to termites.
Use a borate wood treatment. Borate sprays or brush-on solutions soak into the wood and make it toxic to termites and other wood-boring insects while being low-toxicity for people and pets. Apply it to unfinished wood, especially the underside, joints, and legs. Let it dry completely before sealing.
Inspect at least twice a year. Flip the bench if possible and look for mud tubes, tiny holes, hollow-sounding wood, or discarded wings. Tap the legs with a screwdriver handle. If you hear a dull thud or the wood feels soft, probe gently. Early signs are easier to fix than a full replacement.
Reduce moisture around the bench. Position it in a sunny, well-drained spot rather than under dense trees or against a damp wall. Trim nearby plants so air moves around the bench. If sprinklers hit the bench, adjust them so the wood has time to dry.
If you live in a high-risk termite area, consider placing termite bait stations near the bench or having a pest professional treat the surrounding soil. This creates a protective zone and catches foraging termites before they reach the wood.
A little routine care goes a long way. With resistant wood, dryness, borate protection, and regular checks, your park bench can stay solid for years.