Skip to the beginning of the images gallery

Keystone BOX/K-200 Solid Wall Box Lintel 4500mm INS

SKU

KBX245INS

£401.20 £334.33

Product Information

Keystone BOX/K-200 insulated box lintel, 4500mm (14ft 9in) length for solid walls 100-215mm thick.
Designed for standard load-bearing applications supporting internal openings in masonry walls.
Features integral insulation for improved thermal performance, helping meet building regulations.
Perforated design provides a strong plaster key for secure finishes.
Must have minimum 150mm bearing each end, bedded on mortar; lintels require propping during construction.

Details

The Keystone BOX/K-200 Solid Wall Box Lintel 4500mm INS is a specialist structural support designed for builders and contractors working with solid masonry walls between 100mm and 215mm thick. This insulated lintel variant offers enhanced thermal performance, making it a smart choice for projects where energy efficiency is a priority. Please note the lintel must be propped during installation and requires a minimum 150mm bearing at each end.

Application

This lintel is ideal for supporting internal openings such as doorways and windows in solid masonry walls. Its box design carries the full load of wet masonry immediately after installation, allowing trades to progress efficiently. The integrated insulation helps reduce thermal bridging, contributing to better overall wall performance. Suitable for standard load-bearing situations, the lintel is commonly used by site managers and builders working on residential or commercial developments.

Dimension

Length: 4500mm (14ft 9in)
Height: 150mm (5.9in)
Width: 200mm (7.9in)
Wall thickness compatibility: 100-215mm (3.9-8.5in)

Material

Galvanised steel with integral insulation
Perforated surface for plaster key

Type

Box lintel
Standard duty load-bearing lintel
Insulated structural support

All lintels are manufactured in 150mm increments to suit project requirements. For further technical guidance or ordering advice, please contact our sales team.

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	4500mm
Weight	63.850000
Manufacturer	Keystone
Sap Id	KBX245INS

Customer Reviews

No reviews yet on this product

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