Expansive black clay is a cause of DFW gate, fence and concrete failures. The USDA soil description documents a Dallas County soil series with high shrink-swell potential and very slow upper-layer permeability. That makes soil and drainage checks part of our site assessment rather than an assumption about every property.
Clay expands as it takes on water and contracts as it dries. Movement around a shallow post can change its position, pulling a fence out of line or shifting a gate away from its latch. We use the one-third depth rule for concrete footings and assess where surface water collects around posts, gate pads and driveway edges. Changes between wet and dry conditions matter when describing an alignment problem.
Outdoor work also faces a typical DFW season of 100°F temperatures from early July through late August. Sustained heat affects worker scheduling and new landscaping establishment. Customers including landscaping in their project should account for that exposure when planning planting work.

