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Keystone BOX/K-200 Solid Wall Box Lintel 4350mm INS

SKU

KBX2435INS

£400.55 £333.79

Product Information

Keystone BOX/K-200 Solid Wall Box Lintel measuring 4350mm (14ft 3in) length, designed for 200mm (8in) wide solid walls.
Features integrated insulation (‘INS’ version) to enhance thermal efficiency on site.
Perforated design provides a strong plaster key for superior finish and durability.
Supports full wet masonry load immediately after installation, suitable for standard duty applications.
Lintels require minimum 150mm end bearing each side and must be bedded on mortar; propping recommended for quicker build progress.

Details

The Keystone BOX/K-200 Solid Wall Box Lintel 4350mm INS is engineered specifically for builders and contractors working with 200mm solid walls on internal openings. This insulated version offers improved thermal performance, making it a smart choice for projects where energy efficiency is a priority. Please note this lintel must be bedded on mortar with a minimum end bearing of 150mm each side, and propping is advised to speed up construction.

Application

Ideal for supporting standard load internal openings within solid masonry walls, this box lintel carries the full weight of wet masonry from the moment it is installed. The integrated insulation helps maintain thermal integrity, reducing heat loss through openings. Suitable for use in load-bearing walls where reliable, robust support is essential to maintain structural stability on site.

Dimension

Length: 4350mm (14ft 3in)
Wall width accommodation: 200mm (8in)
Height: 150mm (6in)
Width: 200mm (8in)

Material

Galvanised steel with integrated insulation layer

Type

Box lintel for solid masonry walls
Standard duty insulated lintel

Images are for illustration purposes only. For technical advice or support on installation, please contact our sales team.

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	4350mm
Weight	61.720000
Manufacturer	Keystone
Sap Id	KBX2435INS

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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