Home Improvement Asked on December 27, 2021
We moved into a home with a 15-year old wooden pergola that is supporting mature summer wisteria vines. Most of the "beams" are 2x4s, all the beams are sagging, and the wooden lattice roof is rotting and falling down. The whole thing needs to be replaced with a sturdy structure.
What is the best way to replace the pergola while preserving the wisteria?
Edit: Adding more photos of the underside/damage. The posts seem to be okay.
Install new posts outside existing posts. Add parallel double 2x12 to new posts making sure 2x12 is exact height of top of all wood structures but below plant. Slide 2x12 rafter on its side across from new supports ontop the parallel 2x12s mount 2x4 at end of slid in 2x12 rafter and use as fulcrum to lift plant off existing structure and turn upright keep adding 2x12s as rafters. Install if needed trellis from under with cleats. That's how we did it at my grandmothers years ago, not saying its right but it works.
Answered by David Moritz on December 27, 2021
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