Door Size & Compatibility for Push Bar Exit Devices (EN 1125/EN 179) | EKIN

Width and thickness ranges, single/double doors, centre mullion solutions. Avoid misalignment and fit issues. See guidance and models. Before ordering or installing EN 1125 panic exit devices (touch bars) or EN 179 emergency exit devices (push pads/levers), verify the door and frame will accept the hardware and relatch reliably. Use this page as a practical sizing checklist. 

Quick 10-point sizing checklist

1. Door size (W × H): Confirm the clear opening width and overall door height.

2. Door thickness: Measure at the lock stile; note any face plates/laminates that change build-up.

3. Stile width / bar landing: Ensure there’s enough flat landing for the bar brackets (rim/mortise).

4. Edge prep: Check existing mortise or through-fix patterns; avoid clashes with vision panels or cores.

5. Bar cut length: Verify the minimum/maximum cut length for your bar against door width.

6. Vertical-rod run: Confirm head clearance and bottom clearance for top keeper and floor/surface strike.

7. Centre mullion (pairs): Measure mullion width/depth and ensure keeper seating suits paired rims.

8. Threshold & floor detail: Recessed floor strike pocket depth/position, or choose a surface strike when recessing isn’t possible.

9. Re-entry trim & cylinder: Pick trim family (rim/vertical-rod/mortise) and euro cylinder length/profile that sits flush.

10. Closer & swing path: With the closer fitted, confirm opening angle and unobstructed relatching.

Single vs double doors (and centre mullions)

• Single public door: Commonly EN 1125 rim touch bar; ensure bar landing and strike alignment.

• Double doors without a centre mullion: Use EN 1125 vertical-rod pairs; allow for top keeper and recessed floor strike (or rated surface strike).

• Double doors with a centre mullion: Use paired EN 1125 rim devices with mullion keepers; confirm mullion rigidity and clearances.

Explore → EN 1125 /products/panic-exit-devices-en-1125/ 

· Double-Door Kits /products/panic-exit-devices-en-1125/double-door-kits/

EN 1125 family – sizing notes

Rim (single doors)

• Check bar cut length range vs door width (e.g., small/medium/large bar bodies).

• Strike/keeper must capture full latch throw without scuffing; shim as needed.

• Re-entry: choose outside trim compatible with rim devices; select euro cylinder length to sit flush with escutcheon.
  
  

Vertical-rod (pairs)

• Confirm door height allows rod travel and top keeper placement clear of head seals/angles.

• Prefer recessed floor strike; ensure slab/threshold can accept the pocket and a protection plate.

• Rods must release and re-engage simultaneously; allow adjusting room at both ends.
  
  

Mortise (flush aesthetic)

• Verify edge preparation and case depth; avoid clashes with hinge screws, glazing beads or cores.

• Match outside trim and cylinder to mortise spec; check through-fix centres and spindle engagement.

• Keep the projection of trims/handles within corridor clearance.

EN 179 family – sizing notes (trained-only routes)

Bolt / Latch (lever or push pad)

• Confirm pad/lever height within the manufacturer’s range.

• Ensure keeper/strike suits the frame material (timber/steel) and reveal geometry.

• For re-entry, choose trims and euro cylinders with correct length/profile for the door build-up.

Compare → EN 179 /products/emergency-exit-devices-en-179/
Note: If the route may be used by the public, specify EN 1125 instead.

Re-entry trims & euro cylinders (projection matters)

• Cylinder should sit flush or slightly proud of the escutcheon, not over-project.

• Check door thickness + escutcheon stack to pick the correct cylinder length (e.g., 30/30, 35/35, etc.).

• Match trim family to the device: rim vs vertical-rod vs mortise (spindle/cam compatibility, through-fix centres).

See → Outside Trims /products/accessories/outside-trim-handles/

· Cylinder Kits /products/accessories/cylinder-kits/

Frames, thresholds & strikes

• Head keeper: Ensure clear landing and screw bite; avoid thin capping without back-reinforcement.

• Floor strike (recessed preferred): Check pocket depth and line-up with the engagement line; fit a protection plate in high-traffic areas.

• Surface strike: Use where recessing isn’t feasible; confirm floor finish, traffic type (trolleys), and fixings.

• Mullion keepers: On paired rims, keepers must seat firmly with no rattle; shim evenly.

See → Strikes & Keepers /products/accessories/strikes-keepers/

Closers & opening angles

• With the closer fitted, set sweep and latch speed so the door relatches positively without slam.

• Confirm the bar/pad/lever clears seals, vision panel beads and adjacent furniture across the full opening angle.

Text-only sizing matrix (copy to spec sheets)

Door type → Suggested device family

• Single public door → EN 1125 Rim

• Double doors, no mullion → EN 1125 Vertical-Rod Pairs

• Double doors, centre mullion → Paired EN 1125 Rim + Mullion Keepers

• Staff-only internal single door → EN 179 Bolt/Latch (lever or push pad)
  
  

Critical dimensions to record (all types)

• Door: W × H × Thickness；Stile width；Vision panel clearances

• Bar: Cut length range vs door width；Bar height（per template）

• Vertical-rod: Rod run length；Top keeper landing；Floor/surface strike detail

• Pairs: Centre mullion width/depth/rigidity；Keeper seating lines

• Re-entry: Trim family；Euro cylinder length/profile；Projection

• Frame/threshold: Material；Reveal；Recess pocket depth；Fixing substrate

• Closer: Arm type；Swing path；Latch speed setting

FAQ – Door Size & Compatibility

Q1: How do I choose the correct bar length?
Match the bar cut length range to your door width; pick the bar body size that keeps end brackets clear of stiles and vision panels.

Q2: Do I need a recessed floor strike on pairs?
Prefer recessed for durability and smooth relatching; use surface strikes only where recessing is impractical.

Q3: What cylinder length should I order?
Add door thickness + escutcheon stack and select the nearest euro cylinder length so the plug sits flush.

Q4: Can I use EN 179 on a door that the public might use?
No—treat it as public access and specify EN 1125.

Q5: The door closes but does not relatch—what’s wrong?
Usually keeper misalignment or closer latch speed too weak. Re-set the engagement line, shim as needed and adjust the closer.

Send door photos, W × H × thickness, single or double, centre mullion/threshold details, frame material, and any re-entry needs. We’ll return a size-matched, compliant bill of materials in £.

• Use the Selector → /tools/product-selector/

• Request a Quote → /quote/
  Downloads → Templates /downloads/installation-pdfs/ 

• · Checklist /compliance/inspection-checklist/