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Keystone BOX/K-100 Solid Wall Box Lintel 4200mm

SKU

KBX142

£247.79 £206.49

Product Information

Keystone BOX/K-100 solid wall box lintel, length 4200mm (13ft 9in) for 100-215mm wall widths
Designed to carry full wet masonry load immediately after installation
Suitable for standard duty internal openings in solid masonry walls
Requires minimum 150mm bearing each end, bedded on mortar for secure support
Lintel must be propped during installation to speed up construction progress

Details

The Keystone BOX/K-100 lintel is a robust solution tailored for builders and contractors working with solid masonry walls 100mm to 215mm thick. Measuring 4200mm in length, this box lintel is designed to support standard loads across internal openings, providing reliable structural integrity from the moment wet masonry is placed.

Important: The lintel requires a minimum end bearing of 150mm on each side, properly bedded on mortar, and must be propped during installation to ensure safe and efficient construction.

Application

This lintel is ideal for internal openings such as doorways or window spaces within solid masonry walls where standard load support is required. Its box design allows it to carry the full weight of wet masonry immediately, making it a practical choice to maintain build speed without compromising strength.

Dimension

Length: 4200mm (13ft 9in)
Wall width compatibility: 100-215mm
Height: 215mm
Width: 95mm

Material

Concrete or reinforced concrete (standard for box lintels)

Type

Box lintel for solid masonry walls
Standard duty load-bearing lintel

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	4200mm
Weight	54.900000
Manufacturer	Keystone
Sap Id	KBX142

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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