Homeowners often start with a photo of a gate they like. Pros start with a tape measure. The clear opening — the usable width between posts, columns, or walls — decides whether you need a single leaf, a dual swing, a long slide, and how heavy-duty the operator must be.
What to measure (and how)
- Clear opening width — inside face to inside face where the gate must pass. Don’t measure to the outside of fancy columns if the leaf hangs inside.
- Throat depth — how much driveway sits between the gate and the street or garage. Short throats limit swing arcs and waiting space.
- Side clearance — room beside the opening for a slide gate to stack, or for swing hardware and operators.
- Height and approach grade — affects ground clearance, operator mounts, and whether swing is realistic.
Pro tip: Measure twice after landscaping plans are sketched. A new planter or mailbox has ruined more than one “perfect” gate layout.
Single openings
A single swing leaf or a moderate slide works well for typical residential drives — often in the neighborhood of a standard two-car driveway width, though every property differs. Single swing keeps hardware simpler when the arc fits. Single slide keeps the mechanism on one side when grade or depth rules out swing.
- Usually the most cost-effective automation path
- Fewer hinges, one primary leaf to balance and maintain
- Still needs correct operator sizing for weight and wind
Dual openings
Dual swing uses two leaves that meet in the middle (or slightly overlapping, depending on design). You split the mass and the arc, which can feel smoother on wider residential openings and look symmetrical on formal entrances.
- Great for estate-style entries that want a centered meeting point
- May use one dual operator setup or coordinated operators — we match the hardware to the leaf weight and duty cycle
- Alignment matters: both leaves must meet cleanly for locks, magnetic catches, and photo-eye logic
Wide openings
Commercial yards, Multi-family entries, and some rural properties need openings that simply outgrow practical dual swing. That’s where long slide gates, cantilever systems, and commercial-duty operators enter the conversation.
- Wind load grows fast — a tall ornamental panel on a wide opening acts like a sail
- Operator duty rating matters — community and commercial traffic needs commercial cycles-per-day ratings
- Safety devices scale with risk — wider, heavier gates need rock-solid entrapment protection and UL 325-aware design
How opening size hits your budget
- Wider and heavier gates need stronger operators and hardware.
- Custom fabrication cost climbs with length, height, and detail.
- Site work (posts, concrete, conduit, drainage) can rival the gate cost on hard sites.
- Access control is separate — but wide community openings almost always need it planned in from day one.
Next step
If you know your approximate opening width, you can get a useful starting range with our Instant Estimate. We’ll refine style and operator once we see the driveway in person — especially on slopes and columned entries common around North Fulton and Cherokee County.