Security Gates
Lock Down Loading Docks, Doorways and Storefronts
Galvanized steel folding security gates secure an opening without walling it off. Extend and lock the gate to keep people out after hours or while dock doors are open, then fold it neatly aside when you need full access. Light and air still pass through the open lattice.
JB Equipment supplies single and double folding gates for openings from 3 to 20 ft wide, heavy-duty door gates for personnel doorways, and storefront window gates for retail. Choose from 68 standard sizes, or ask us for a custom gate.
- 14-gauge galvanized steel
- Openings from 3 to 20 ft wide
- Lock on the left or right
- Custom sizes on request
Choose Your Gate Type
Every gate type is listed with part numbers and dimensions on the Galvanized Folding Security Gates page.
Single Folding Gates
3 to 10 ft wide · 6-1/2 to 8-1/2 ft high
One gate folds to one side. Order the lock on the left or right. 30 standard sizes.
See sizes →Double Folding Gates
6 to 20 ft wide · centre drop pin
Two gates meet in the middle for wide dock doors and openings. 30 standard sizes.
See sizes →
Heavy-Duty Door Gates
Doorways up to 48 in · padlock bar
Hinged folding gates that swing like a door, mounted inside or outside the jamb.
See sizes →
Storefront Window Gates
3 and 6 ft · single or double
Protect retail windows and entrances after hours while keeping displays visible.
See sizes →Galvanized Folding Security Gates
- Heavy-duty 14-gauge galvanized steel U-channels with aircraft-quality rivets
- 2 in retractable rubber casters welded to the frame
- Centre drop pin on double gates over 7 ft wide
- Installation hardware included with single and double gates
Security Gates in Use
Folding gates on warehouse openings, loading docks, office entrances and storefronts.
Security Gate Comparison
Heights are approximate; see the product page for exact collapsed and expanded heights of every size.
| Gate | Opening width | Height | Locking | Best for |
|---|---|---|---|---|
| Single folding gate | 3 to 10 ft | 6-1/2 to 8-1/2 ft collapsed | Left or right | Overhead doors, single dock doors, cages |
| Double folding gate | 6 to 20 ft | 6-1/2 to 8-1/2 ft collapsed | Centre drop pin | Wide dock doors, shipping bays, warehouse openings |
| Heavy-duty door gate | Up to 48 in | About 6 to 6-3/4 ft | Locking bar for a padlock | Personnel doors, offices, stockrooms |
| Storefront window gate | 3 or 6 ft | About 6.4 ft collapsed | Single or double | Retail windows and entrances |
How to Choose a Security Gate
- Measure in three placesCheck the width at the top, middle and bottom of the opening, and use the smallest measurement.
- Check the header heightMeasure from the floor to the underside of the header or door track so the collapsed gate fits.
- Pick the folding sideDecide which side the gate should stack on, and order a single gate with the lock on the opposite side.
- Go double for wide openingsFor openings over 10 ft, a double gate folds to both sides and locks in the middle.
- Plan the floor pinDouble gates over 7 ft use a centre drop pin that sets into holes drilled in the floor.
- Think about trafficChoose door gates for personnel doors and folding gates for dock doors and vehicle openings.
Frequently Asked Questions
What sizes do folding security gates come in?
Single folding gates cover openings from 3 to 10 ft wide and double gates from 6 to 20 ft wide, in collapsed heights from 6-1/2 to 8-1/2 ft. Door gates fit doorways up to 48 in wide, and storefront window gates come in 3 and 6 ft widths. Custom sizes are available.
How do I measure for a folding gate?
Measure the width of the opening at the top, middle and bottom, and the height from the floor to the underside of the header. Note whether the gate will mount inside or outside the opening, and which side you want it to fold to. Send us the measurements and we will match a standard size or quote a custom gate.
Should I choose a single or a double gate?
A single gate folds to one side and suits openings up to 10 ft wide. For wider openings, or where you want the gate to fold to both sides, choose a double gate. The two halves meet in the middle and lock with a centre drop pin set into the floor.
Can I lock a folding security gate?
Yes. Single gates can be ordered with the lock on the left or the right. Door gates include a locking bar that takes a padlock, and double gates use a centre drop pin to hold the gate closed.
Do folding gates block light and airflow?
No. The open diamond lattice keeps the opening secure while letting light and air through, so you can leave dock doors open for ventilation without leaving the building unprotected.
Is installation hardware included?
Installation hardware is included with single and double folding gates. Ask us if you would also like the gate installed.
Need a gate for a dock door or a custom opening?
Send us the width and height of the opening and where you want the gate to fold, and we will quote the right gate.