How can I integrate different materials for a cohesive outdoor design?

To create a cohesive outdoor design, mix and match materials that complement each other. For example, pair wooden tables with metal chairs for a rustic yet modern look, or use plastic furniture with metal accents for a contemporary feel. Ensure that the colours and styles of the materials harmonise with your overall design theme. Incorporate accessories like cushions, table runners, and decorative elements that tie the different materials together seamlessly.