Exitex OUM 4 Aluminium Door Low Threshold Cill 914mm for Outward Opening Doors

Exitex OUM 4 Aluminium Low Threshold 914mm – Outward-Opening Door Cill

Genuine Exitex OUM 4 aluminium low threshold with EPDM weather seal – reduces draughts and water ingress on outward-opening doors. BS8300 compliant, in Gold Anodised or Mill Aluminium.

Exitex OUM/4 Aluminium Door Cill is a low-profile replacement threshold designed specifically for outward-opening external doors. If your existing weatherbar or threshold has become worn, draughty, or is letting water in around the base of the door, this genuine Exitex OUM 4 low threshold provides a like-for-like replacement without the cost of a full door installation. It's suitable for single open out doors from 44–56mm thick, and its gently sloping profile makes it a practical, BS8300 Equality Act compliant choice for accessible entrances.

Manufactured from strong aluminium with an EPDM rubber seal for excellent weather tightness and pre-drilled drainage holes to let excess water escape, the OUM 4 is built to withstand exposed, external locations without corroding or warping. It carries the genuine Exitex manufacturer reference 1.01.0339, so you can be confident you're fitting the correct part rather than a generic substitute.

Key Benefits for Outward-Opening Door Owners:

• Genuine Exitex OUM 4 Fit – Matching the original manufacturer profile means no wasted money on a cheap alternative that doesn't sit right or seal properly against your door.
• EPDM Weather Seal – The rubber seal compresses against the door when closed for excellent weather tightness, cutting draughts and keeping your entrance warmer.
• Pre-Drilled Drainage Holes – Lets excess water escape from the sill rather than pooling, helping to protect your doorframe and flooring from water damage over time.
• Low-Profile, BS8300 Compliant – The gently sloping profile meets BS8300 Equality Act requirements, making it suitable for accessible, wheelchair-friendly entrances and reducing trip hazards compared with a raised, traditional threshold.
• Strong Aluminium Construction – Resists corrosion and coastal or exposed weather conditions, so it stays functional and looking presentable for years rather than needing early replacement.
• Suitable for Doors 44–56mm Thick – Covers the door thickness range used across most single doors.
• Cut-to-Size DIY Replacement – Supplied at 914mm and trimmed to your doorframe rebate width on site, it's a practical, self-fit alternative to replacing an entire door or frame when only the threshold has failed.
• Two Finish Options – Available in Gold Anodised or Mill Aluminium, so you can match existing door furniture or the look of your door.

Product Specifications:

• Brand: Exitex
• Profile Reference: OUM 4
• Manufacturer Reference: 1.01.0339
• Length: 914mm
• Overall Width: Approx. 69.4mm
• Overall Profile Height: Approx. 15mm
• Material: Aluminium
• Finish Options: Gold Anodised, Mill Aluminium
• Door Application: Outward-opening single doors
• Suitable Door Thickness: 44–56mm
• Underdoor Clearance Required: 12mm
• Seal: EPDM rubber weather seal
• Drainage: Pre-drilled drainage holes
• Accessibility Standard: BS8300 Equality Act compliant

This threshold requires a 12mm underdoor clearance and suits doors 44–56mm thick. Please measure your existing threshold, check your door's opening direction, and confirm underdoor clearance carefully before ordering. If you're unsure which size or finish you need, please contact us and we'll be happy to help.

Pro Tips:

Pro Tip: This threshold needs a 12mm underdoor clearance to work correctly – check this before ordering, and if necessary remove the door and trim it to suit. It's supplied at 914mm and cut to the width of your doorframe rebate on installation, so also confirm your door is outward-opening.

Package Contents:

• 1 x Exitex OUM 4 Aluminium Low Threshold (914mm, cut to size on installation) with EPDM rubber seal, in your chosen Gold Anodised or Mill Aluminium finish
• 1 × Pre-fitted Rubber Weather Seals
• 3 × Fixing Screws
• 3 × Wall Plugs
• 1 × Installation Instructions

Frequently Asked Questions:

Will the Exitex OUM 4 fit my outward-opening door?
The OUM/4 is designed as a genuine replacement threshold for outward-opening doors at 914mm in length, with an overall width of approximately 69.4mm and a profile height of approximately 15mm. Please check these dimensions against your existing threshold before ordering to confirm it's a suitable fit.

Is this threshold suitable for wheelchair or pushchair access?
Yes, the OUM/4 has a gently sloping, low-profile design that meets BS8300 Equality Act requirements, making it suitable for wheelchair-friendly, accessible entrances when correctly fitted.

Do I need to trim my door to fit this threshold?
This threshold requires a 12mm underdoor clearance to work correctly. Check the gap under your door before ordering – if there isn't enough clearance, you may need to remove the door and trim it to suit.

What door thickness does the OUM/4 suit?
The OUM/4 is suitable for doors 44–56mm thick, covering most standard single door installations.

Is this a genuine Exitex part?
Yes, this is a genuine Exitex OUM/4 threshold, manufacturer reference 1.01.0339, supplied by JCP Hardware.

Why Choose the Exitex OUM/4 Aluminium Low Threshold?

Exitex is a well-established name in door and window threshold systems, and the OUM/4 reflects that reputation for durable, weather-resistant hardware. Its EPDM seal and pre-drilled drainage holes work together to keep your entrance draught-free and free from standing water, while the BS8300 compliant low profile keeps it accessible. Fitting a genuine, correctly specified threshold helps keep your entrance secure and weathertight, without the cost and disruption of replacing the whole door.

With over 30 years supplying uPVC and door hardware, JCP Hardware can help you confirm you're ordering the right size and finish before you buy.