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Keystone BOX/K-100 Solid Wall Box Lintel 3600mm INS

SKU

KBX136INS

£195.36 £162.80

Product Information

Keystone BOX/K-100 insulated box lintel, 3600mm (11ft 10in) length for solid wall widths 100-215mm
Designed to support internal openings on standard duty projects with 100mm wide walls
Built-in insulation enhances thermal performance for energy-efficient builds
Constructed to carry the full load of wet masonry immediately after installation
Minimum 150mm end bearing required each side, lintel must be bedded on mortar and propped during construction for safety

Details

The Keystone BOX/K-100 Solid Wall Box Lintel 3600mm INS is a specialist lintel designed for builders and contractors working on solid wall structures with widths between 100mm and 215mm. Featuring integral insulation, this lintel improves thermal efficiency while reliably supporting internal openings on standard duty applications. Please note, lintels require a minimum end bearing and appropriate bedding for safe installation.

Application

This box lintel is ideal for use in solid masonry walls where internal openings such as doorways or smaller window openings require structural support. Its design allows it to carry the full wet masonry load immediately after installation, helping to streamline site workflow. The insulated version enhances energy performance, making it suitable for projects where thermal efficiency is a priority. Builders should ensure lintels are properly bedded in mortar with at least 150mm bearing on each side and propped during construction to maintain safety and compliance.

Dimension

Length: 3600mm (11ft 10in)
Height: 215mm
Width: 95mm
Suitable for wall widths: 100-215mm

Material

Steel with integrated insulation for improved thermal performance

Type

Box lintel for solid walls
Standard duty structural support lintel

For safe and effective installation, ensure a minimum 150mm end bearing on each side, bedding on mortar, and use of props during construction. Contact our sales team if you require further technical guidance or support.

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	3600mm
Weight	47.050000
Manufacturer	Keystone
Sap Id	KBX136INS

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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