What are the most effective ways to prevent warping in cedar or redwood components of a landscape bar counter?

Preventing warping in cedar or redwood components of landscape bar counters requires a multi-faceted approach that addresses wood's natural tendency to expand and contract with moisture changes. The most effective strategy begins with proper wood selection - choose quarter-sawn lumber whenever possible as it's more dimensionally stable than flat-sawn boards. Before construction, acclimate the wood to your local environment for at least two weeks, storing it in the same conditions where the finished counter will reside.

Sealing all surfaces thoroughly is crucial. Apply a high-quality wood sealant or penetrating oil to all sides, including end grains, before assembly. Pay special attention to end grains which absorb moisture more readily. Use stainless steel fasteners that allow for wood movement - avoid over-tightening screws which can restrict natural expansion and contraction.

Install proper moisture barriers between the wood and any concrete or masonry surfaces. Consider adding ventilation underneath the counter to promote air circulation. For additional protection, design the counter with expansion gaps and use breadboard ends on panels to control warping. Regular maintenance including reapplying sealant annually will significantly extend the life of your cedar or redwood bar counter while maintaining its structural integrity and appearance.