Does a Cedar Gate Need Extra Room for Wood Movement?

Cedar is prized for gates because it resists rot and insects better than most softwoods, but it still moves with the seasons — and a cedar gate built without accounting for that movement will bind, stick, or develop uneven gaps within its first year.

Why Cedar Moves

Wood absorbs and releases moisture from the surrounding air. In humid summer months, cedar swells slightly; in drier winter conditions, it shrinks back. On the Gulf Coast, where humidity stays elevated most of the year with periodic drier spells, this cycle is real but generally less extreme than in climates with harsh dry winters — still enough to matter for a snugly fit gate.

Correct Gap Sizing

A cedar gate should be built narrower than the measured opening to leave room for this seasonal swelling — a common approach is building the panel about 1/4 inch narrower than the opening itself. On top of that:

• Hinge and latch side gaps: plan for roughly 1/2 inch to 3/4 inch of clearance on both sides of the gate.
• Seasonal allowance: if the gate is installed during a dry period, leave a slightly larger latch-side gap (up to around 1.5 inches) to allow for summer swelling; if installed during humid months, a smaller gap (around 1 inch) works since the wood is already closer to its expanded size.
• Double cedar gates: leave 1 to 1.5 inches where the two panels meet in the center, in addition to the hinge and latch clearances, so the panels don’t bind against each other once both have swelled.

Hardware That Handles the Movement

Heavy-duty strap hinges are worth the extra cost on a cedar gate because they distribute the gate’s weight across a wider section of the frame — reducing the chance that repeated seasonal flexing splits the wood at a single hinge attachment point. Stainless or galvanized fasteners are also worth insisting on, since standard hardware corrodes faster in a humid coastal climate and loosens as the wood works around it season after season.

The Payoff for Getting This Right

A cedar gate built with the correct movement allowance swings freely in July and doesn’t develop an unsightly, security-compromising gap in January — it’s a small design detail at the build stage that prevents a callback or premature hardware failure down the road.