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Keystone BOX/K-100 Solid Wall Box Lintel 750mm INS

SKU

KBX1075INS

£26.00 £21.67

Product Information

Keystone BOX/K-100 lintel, 750mm (29½") length, designed for 100mm solid walls.
Includes built-in insulation to enhance thermal performance on site.
Standard duty lintel suitable for supporting internal openings in masonry walls.
Requires minimum 150mm bearing on each end, bedded on mortar for safe installation.
Lintel must be propped during construction to ensure stability and speed.

Details

The Keystone BOX/K-100 Solid Wall Box Lintel 750mm INS is a specialist structural lintel designed for builders and contractors working on 100mm solid wall constructions. This insulated version offers improved thermal efficiency while reliably supporting internal openings, making it an excellent choice for projects that demand both strength and energy performance. Please note the lintel is supplied without bricks or additional materials.

Application

This box lintel is intended for use in supporting internal masonry openings, carrying the full load of wet masonry during installation. Its insulation layer helps reduce thermal bridging, which is increasingly important in modern building regulations. Typical applications include doorways and window openings in solid brick or block walls with widths between 100mm and 215mm.

Dimension

Length: 750mm (29½")
Height: 75mm (3")
Width: 95mm (3¾")
Minimum end bearing: 150mm on each side

Material

Steel lintel with integrated insulation layer
Suitable for masonry load-bearing applications

Type

Box lintel for solid wall construction
Standard duty structural support

To ensure optimal performance, lintels should be bedded firmly in mortar with adequate bearing at each end and propped during construction. For additional technical guidance or assistance, please contact our sales team.

More Information

More Information
Type	Box Lintels
Loading	Standard Duty
Length	750mm
Weight	3.740000
Manufacturer	Keystone
Sap Id	KBX1075INS

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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