Why are gaps opening in my new wooden fence?

FENCING · OCTOBER 7, 2026 · SLATE & SPAN

Small gaps can develop as fence boards lose moisture and shrink. That alone does not prove poor workmanship. Loose boards, pronounced bowing or moving posts deserve a closer look, especially on a newly finished fence.

Planning a project?

Tell Slate & Span your city and what you have in mind.

Check what is actually moving

A homeowner asked about gaps and bowed boards in a new fence. The replies disagreed about the finish, but photos cannot tell you the wood’s moisture content or whether the frame is secure.

Planning a new wooden fence? Start with the fence estimator to budget the length, height and standard wooden gates before discussing the finish.

Ready to discuss the details?

Share a few photos and your priorities with Slate & Span.

What to ask your installer

Photograph the same sections now and again later, with a ruler beside the gaps. Note whether the spaces are fairly consistent or concentrated around twisted boards. Ask the installer to check the fixings, rails and posts rather than simply covering the gaps.

Ask what wood was supplied, how much movement was expected, and which defects the workmanship warranty covers. Get any proposed board replacement or additional support in writing. If privacy was part of the agreement, ask how the finished design will meet that expectation after the wood dries.

Considering replacing a run instead? Use the wooden fence estimate tool as a starting point. Custom privacy styles need a separate discussion; the tool does not price repairs. Final scope and site conditions are confirmed with you.