Skip to the beginning of the images gallery

Keystone BOX/K-100 Solid Wall Box Lintel 4000mm

SKU

KBX14

£247.79 £206.49

Product Information

Keystone BOX/K-100 lintel, 4000mm (13'1") length for solid walls 100-215mm thick
Designed to carry full wet masonry load immediately after installation
Standard duty lintel suitable for internal openings in load-bearing walls
Requires minimum 150mm bearing each side, bedded on mortar for secure support
Recommended to prop lintels during construction for stability and speed

Details

The Keystone BOX/K-100 4000mm solid wall box lintel is engineered for builders and contractors working with solid masonry walls between 100mm and 215mm thick. This standard duty lintel provides dependable support for internal openings, carrying the full weight of wet masonry as soon as it is installed, making it an efficient choice for reliable structural integrity on site. Please note lintels must be properly bedded and propped during installation to ensure optimal performance.

Application

Ideal for use in solid wall construction, this box lintel supports internal doorways or window openings where reliable load-bearing capacity is required. Its design allows it to carry the weight of freshly laid masonry above, helping maintain structural safety while work progresses. Suitable for general building projects where standard duty support lintels are specified.

Dimension

Length: 4000mm (13'1")
Height: 215mm (8.5")
Width: 95mm (3.7")
Wall thickness supported: 100-215mm (4"–8.5")
Minimum end bearing: 150mm (6") each side

Material

Steel (galvanised or coated depending on specification)

Type

Box lintel for solid masonry walls

All lintels should be installed with proper bearing and propping to ensure construction safety and efficiency. For further technical advice or project-specific support, please contact our sales office.

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	4000mm
Weight	52.280000
Manufacturer	Keystone
Sap Id	KBX14

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