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Keystone BOX/K-200 Solid Wall Box Lintel 2550mm INS

SKU

KBX2255INS

£137.28 £114.40

Product Information

Keystone BOX/K-200 Solid Wall Box Lintel with insulation, length 2550mm (8ft 4in).
Designed for solid walls 100-215mm thick, supporting internal openings.
In-built insulation improves thermal efficiency on site.
Perforated for plaster keying, carrying full wet masonry load immediately.
Must have minimum 150mm end bearing each side; bedding on mortar required.

Details

The Keystone BOX/K-200 Solid Wall Box Lintel 2550mm INS is a specialist lintel designed for builders and contractors working with solid masonry walls between 100mm and 215mm thick. This insulated version offers improved thermal performance, making it a reliable choice for internal openings where both structural support and energy efficiency are priorities. Please note, this lintel requires proper bedding and end bearing to ensure effective load distribution.

Application

This box lintel is typically used to support standard duty loads over internal doorways or openings within solid brick or block walls up to 215mm thick. Its perforated design provides a strong key for plaster finishes, allowing it to carry the full wet masonry load immediately upon installation. The insulation layer helps reduce thermal bridging, contributing to better overall building performance. For best results, lintels should be propped during construction to speed up the build process.

Dimension

Length: 2550mm (8ft 4in)
Height: 150mm (6in)
Width: 200mm (8in)
Suitable for wall thickness: 100-215mm

Material

Galvanised steel with integrated insulation
Perforated surface for plaster keying

Type

Box lintel for solid masonry walls
Standard duty structural support

Important: Keystone Box Lintels must be bedded on mortar with a minimum end bearing of 150mm on each side of the opening. The image is for illustration purposes only. For detailed guidance and technical support, please contact our sales team.

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	2550mm
Weight	24.500000
Manufacturer	Keystone
Sap Id	KBX2255INS

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Delivery Information

Delivery availability

We deliver to most mainland UK addresses. Some postcode areas are excluded – please see the full list below.

Delivery charges

Delivery costs vary depending on your location, the products ordered, and the delivery method selected. All delivery charges are calculated clearly at checkout.

Fuel Surcharge

Information on our added Fuel Surcharge can be found at https://condell-ltd.com/fuel-surcharge-notification

Delivery dates

You can request a preferred delivery date at checkout. While we aim to meet this wherever possible, availability may depend on stock levels and third-party delivery schedules. If your chosen date is unavailable, a member of our team will contact you to arrange an alternative.

Delivery method

All deliveries are made kerbside as standard. For health and safety reasons, drivers are unable to carry materials beyond the kerb. If you have specific access requirements, please contact us before placing your order.

Delivery exclusions

We currently do not deliver to the following postcode areas:

AB16, AB21–22, AB30–AB38, AB41–AB56, BT1–BT94, CA2, CA15, CA28, DD1, DD8, DD9, DG1, DG2, DG10–DG14, DG16, FK18–FK20, GY1–GY9, HS1–HS9, IM1–IM9, IV1–IV5, IV7, IV12–IV13, IV21–IV28, IV30–IV36, IV40–IV56, JE1–JE4, KA1, KA4–KA6, KA14–KA15, KA18–KA21, KA27–KA30, KW1–KW3, KW6–KW17, KY6–KY10, KY13–KY16, LL49, LL58–LL62, LL64–LL78, PA17–PA78, PH11, PH19–PH26, PH30–PH33, PH35–PH38, PH40–PH44, PH49–PH50, PO30–PO41, SA68, SA71, ZE1–ZE3

Important delivery terms

Shortages must be reported within 48 hours and noted on delivery paperwork
All deliveries must be signed for; redelivery charges may apply
Deferred deliveries may incur storage charges
Collected orders are not subject to delivery charges
Returns are subject to a 25% restocking fee (delivery charges excluded)
Made-to-measure items are non-refundable
Reasonable access to the delivery point must be available; additional charges may apply