None 4 in. x 4 in. x 8 ft. STIX Engineered Structural Untreated Cypress Wood Timber

The STIX Engineered Structural Timber is the perfect combination to build your pergola from. You can use STIX as your pergolas post or beam. It is kiln dried to limit twisting, warping and splitting. The hollow core makes it easier to handle and build with, plus you can conceal the wiring for pergola lights inside.