Gate Hinge Types Explained: T-Hinges, Strap Hinges, and More

Wooden gate hinges fall into two families: T-hinges (short mounting plate plus long horizontal strap) and strap hinges (long plate spreading load across the gate face). Pipe gate, adjustable, and self-closing designs cover the rest.

A gate that sags after two seasons usually wasn’t a bad gate — it was the wrong hinge. The hardware carries the gate’s weight, sets swing direction, and determines clearance between gate and post. Get the type right and a gate hangs square for a decade; get it wrong and bolts tear out of soft rails or the gate drags the ground.

T-Hinges And Strap Hinges

The names overlap: a T-hinge is a short vertical plate joined to a long horizontal strap; a strap hinge is any long plate across the gate face. “T-hinge,” “T-strap,” “tee hinge,” and “strap hinge” are used interchangeably, so the label alone tells you little. What matters is geometry — the broad strap distributes load across the face while the short plate fastens to the post or frame. Both mount on the surface with screws or bolts rather than mortising, making them a realistic DIY job.

Current examples:

Heavier gates need heavier stock. Longer straps spread load over more board, but length doesn’t automatically raise working load — that comes from the manufacturer’s rating. Home Depot’s 5-in. T-strap listing shows load capacity, thickness, and pack count side by side for honest comparison.

Pipe, Adjustable, And Self-Closing Hinges

Round-post and chain-link gates can’t use a flat strap, so they take pipe gate hinges that clamp around tubular frames.

Adjustable and self-closing hinges correct alignment after settling or close the gate automatically.

Matching Specs To Your Gate

Measure gate weight, height, thickness, post size, hinge-side clearance, and desired swing angle. Pick a hinge rated above the gate’s actual weight, and treat pack count as quantity — never a load rating.

Position hinges near the top and bottom rails, vertically aligned; tall or heavy gates may need a third. Through-bolts or structural screws hold far better than short wood screws on a heavy gate. Hang the gate square and level with clearance for swing and ground movement, then tighten without crushing the wood. Test full swing, latch engagement, and post stability, and recheck fasteners after a few weeks. Still deciding which hardware to order? This roundup of tested wooden gate hinges compares real models side by side.

Four mistakes sink most installs: mounting to weak boards or rotten posts, mixing incompatible metals outdoors so corrosion accelerates where they touch, skipping left/right-hand or post-specific design checks, and assuming “rustproof” or “heavy-duty” is an engineering certification rather than marketing. Verify every claim against the exact model’s instructions. Keep hands and children clear of pinch points between gate, hinge, post, and latch.