Skip to the beginning of the images gallery

Keystone BOX/K-100 Solid Wall Box Lintel 3450mm

SKU

KBX1345

£181.39 £151.16

Product Information

Keystone BOX/K-100 solid wall box lintel, 3450mm (11ft 4in) long for 100-215mm (4-8½in) thick walls
Standard duty lintel designed to carry full wet masonry load immediately after installation
Supports internal openings, ideal for builders and site managers working on solid masonry walls
Requires minimum 150mm (6in) end bearing each side, bedded on mortar for secure installation
Propping recommended to speed up construction and ensure stability during works

Details

The Keystone BOX/K-100 is a robust solid wall box lintel measuring 3450mm, tailored for builders, contractors, and site managers handling internal openings in 100mm wide solid masonry walls. This lintel provides reliable standard duty load support, carrying the full weight of wet masonry as soon as it is installed. Please note, lintels must be properly bedded and propped for optimal performance.

Application

Designed primarily for supporting internal openings in solid masonry walls between 100mm and 215mm thick, the Keystone BOX/K-100 lintel is a dependable choice for structural support on serious building projects. Its box design efficiently carries wet masonry loads immediately, making it suitable for new builds and refurbishment work where reliable lintel performance is critical. It is essential to allow a minimum 150mm bearing on each side of the opening and to bed the lintel in mortar to ensure stability.

Dimension

Length: 3450mm (11ft 4in)
Height: 215mm (8½in)
Width: 95mm (3¾in)
Suitable for wall widths: 100-215mm (4-8½in)

Material

Steel box lintel designed for masonry support

Type

Solid wall box lintel
Standard duty structural lintel

All lintels must be installed with a minimum 150mm bearing on each side, bedded on mortar, and propped during construction for safety and performance. For further technical advice or bespoke requirements, please contact our sales team.

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	3450mm
Weight	45.090000
Manufacturer	Keystone
Sap Id	KBX1345

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