Exitex OUM 5 TB Aluminium Door Low Threshold Cill 914mm - Outward Opening Doors

Exitex OUM 5 RITB / OUM 5 TB 914mm Aluminium Door Threshold — Part M Compliant

Thermally broken Exitex OUM 5 RITB aluminium door threshold for outward opening doors — Part M compliant, low-profile and sealed against draughts.

Exitex OUM 5 RITB / OUM 5 TB Aluminium Door Threshold is the straightforward fix for a worn, leaking or step-up entrance. If rain is finding its way under your outward opening door, or the old threshold has corroded and become a trip hazard, this genuine Exitex aluminium door threshold replaces it with a flat, weather-sealed transition that anyone can walk or wheel over. It is Part M compliant and BS8300 Equality Act compliant, so it meets the accessibility standard required for level-access entrances. Supplied in a 914mm length with an integrated EPDM rubber weather seal, ready to fit to timber, composite, uPVC, aluminium and steel doors.

The extruded aluminium profile incorporates a genuine thermal break, separating the cold outer face from the warm inner face to reduce thermal bridging and the condensation that so often forms around older solid-metal thresholds. Choose from a hard-wearing Gold Anodised finish or a natural Mill Aluminium finish, both well suited to exposed and coastal entrances. Manufacturer reference 01.0758.

Key Benefits for Outward Opening Door Owners:

• Stops Draughts and Water Ingress at the Doorstep – The integrated EPDM rubber weather seal compresses beneath the closed door to form a continuous barrier. That means fewer draughts across the hallway floor, less water creeping in during driving rain, and a warmer entrance without touching the door itself.
• Thermal Break Cuts Heat Loss and Condensation – A solid aluminium threshold conducts cold straight through to the inside of your home. The thermally broken construction of the OUM 5 RITB interrupts that path, reducing thermal bridging and the damp patches and condensation that build up around the threshold in winter.
• Part M and BS8300 Compliant Level Access – The low-profile design gives a maximum external height of approximately 15mm, meeting Part M and BS8300 Equality Act requirements. If you need a wheelchair-accessible entrance for a family member, a rental property or a commercial doorway, this threshold satisfies the standard without a costly rebuild.
• Fits Almost Any Door Material – Suitable for timber, composite, uPVC, aluminium and steel doors at 56mm thickness, so you are not hunting for a material-specific part. One threshold covers replacement work and new installations alike.
• Corrosion-Resistant Aluminium Built to Last – Aluminium will not rust like steel or rot like a timber threshold, and the Gold Anodised finish adds a tough anodic layer that stands up to weather and foot traffic. Buy once rather than replacing a cheap threshold again in two winters.
• Genuine Exitex Part, Not a Copy – This is the genuine Exitex OUM 5 RITB (also sold as the OUM 5 TB), manufacturer reference 01.0758, so the profile dimensions and seal geometry match the original specification you are replacing.
• A DIY Job, Not a Joinery Bill – Replacing the threshold alone is a fraction of the cost of a new door set, and with the seal already integrated it is a manageable afternoon's work for a competent DIYer.

Product Specifications:

• Brand: Exitex
• Manufacturer Reference: 01.0758
• Model: OUM 5 RITB / OUM 5 TB
• Door Opening: Outward Opening
• Suitable Door Materials: Timber, Composite, uPVC, Aluminium & Steel
• Door Thickness: 56mm
• Under Door Clearance: 13mm
• Length: 914mm
• Overall Profile Width: Approx. 71.5mm
• Maximum External Height: Approx. 15mm
• Material: Aluminium
• Finish Options: Gold Anodised or Mill Aluminium
• Seal: EPDM Rubber Weather Seal
• Thermal Break: Yes
• Accessibility: Suitable for Wheelchair Access
• Accessibility Standard: Part M / BS8300 Equality Act Compliant

Please measure your existing threshold carefully before ordering. This threshold is designed for outward opening doors only and requires approximately 13mm of under-door clearance with a 56mm door thickness. If you are unsure whether it suits your doorway, please contact us and we will be happy to help.

Pro Tips:

Pro Tip: Before you fix anything down, dry-fit the threshold in the opening and close the door onto it to check the EPDM seal makes even contact along the full width. The most common cause of a threshold that still lets water in is a sub-floor that has settled unevenly — pack and level the substrate first, and bed the threshold on a continuous run of low-modulus silicone rather than dabs, so there is no channel for water to track underneath.

Package Contents:

• 1 × Exitex OUM 5 RITB / OUM 5 TB Aluminium Door Threshold, 914mm, in your selected finish
• 1 × Integrated EPDM Rubber Weather Seal (fitted to the threshold)
• 4 × Fixing Screws
• 4 × Wall Plugs
• 1 × Installation Instructions

Frequently Asked Questions:

Will this threshold fit my outward opening door?
The Exitex OUM 5 RITB is designed for outward opening doors with a 56mm door thickness and requires approximately 13mm of under-door clearance. Measure the gap beneath your closed door and the width of your existing threshold — the profile is approximately 71.5mm wide overall and 914mm long. If your measurements differ, get in touch before ordering and we will check compatibility for you.

What is the difference between the OUM 5 RITB and the OUM 5 TB?
There is no difference — they are the same Exitex threshold under two commonly used references, manufacturer reference 01.0758. If your supplier, installer or old paperwork quotes either code, this is the correct part.

Is this threshold suitable for wheelchair access?
Yes. With a maximum external height of approximately 15mm, it is Part M compliant and BS8300 Equality Act compliant, making it suitable for wheelchair and mobility access. It is a common choice for accessible entrances in both domestic and commercial settings.

How long is this threshold and what size door will it cover?
The threshold is supplied in a 914mm length, which suits standard single door openings. Measure the width of your existing threshold before ordering to confirm the 914mm length covers your opening.

Will it stop draughts and water coming under my door?
The integrated EPDM rubber weather seal is designed to compress against the underside of the closed door to reduce draughts and help protect the entrance against weather ingress. For best results, make sure the door closes evenly onto the seal along its full length and that the threshold is bedded on a level, sealed substrate.

Why Choose the Exitex OUM 5 RITB Aluminium Door Threshold?

Exitex has built its reputation on weather sealing that actually performs once the wind gets up, and the OUM 5 RITB is a good example of it — thermally broken aluminium, a properly integrated EPDM seal and a genuinely accessible low profile in a single component. Replacing a tired threshold is one of the cheapest improvements you can make to an entrance: it stops the draught across the hallway, keeps the rain where it belongs, and removes the step that catches wheels and toes alike. It looks smarter too, which matters on a front door you walk through every day.

With over 30 years in the uPVC and door hardware trade, JCP Hardware supplies genuine Exitex parts and can help you confirm the right threshold for your doorway before you order. If you are unsure about clearances or which finish suits your door furniture, just ask — we would rather spend five minutes getting it right than see you fitting the wrong part.