Top Lumber & Fencing Supplies in San Jose | Soares Lumber & Decking Supply

Fence expansion damage is typically caused by heat and humidity changes. In San Jose, hot summers dry out wood, causing it to shrink, while occasional moisture can make it swell. This constant movement can lead to warping, cracking, or boards pulling apart. Using properly spaced boards and choosing stable wood species like cedar can reduce this issue.

Look for boards that are bowing, cupping, or twisting. You may notice gaps between boards, nails popping out, or the fence leaning. Warping often shows first on south-facing sections that get direct afternoon sun. If you see these signs, it's best to replace affected boards before they damage adjacent panels.

We recommend using kiln-dried lumber with a moisture content below 19% to minimize future movement. Applying a UV-resistant stain or sealer helps reflect heat and reduce drying. For new installations, we suggest leaving 1/8"" gaps between boards to allow for expansion. Our team can advise on the best materials for your specific fence location.