Keystone Cavity Steel Lintel S/K-90

£45.05£145.60 Incl. VAT

Free delivery over £150 (Exceptions Apply)
Next Day Available | 30 Day Return Policy
Further Delivery Information


Manufactured for cavity widths of 90mm with an inner leaf of 100mm and an outer leaf of 102mm. All Keystone Lintels standard lintels satisfy the Thermal Performance requirements of all UK Building Regulations.

For more information please visit – Keystone Website 

Other Sizes are available – please email for a quotation –

PLEASE NOTE – Stock Levels are not live, availability may vary. If required urgently please contact us or speak to us on the live chat. We may deliver an alternative product if unavailable at the time of purchase. A member of our team will be in touch.

Keystone Cavity Steel Lintel S/K-90 Key Features

  • Suitable for cavity widths from 90-105mm
  • Blockwork built tight against the inner face of the lintel.
  • Place mortar bed on top of blockwork before floor units are laid to provide even distribution of load.
  • It is recommended that lintels are propped to facilitate the speed of construction.
  • Outer Leaf – 102mm
  • Inner Leaf – 100mm

Keystone Steel Lintel S/K-90 Specification

  • Wall Type / Lintel Type: Cavity Wall
  • Duty Load: Standard Duty
  • Cavity Range: 90-105mm
  • Width: 283mm
Length (mm) Height


Total UDL
kN 3:1
Total UDL
kN 19:1
88 1.6 12 10
85 2.0 16 13
107 2.0 19 16
125 2.0 21 17
150 2.0 23 18
Keystone Cavity Steel Lintel S/K-90

Delivery Information

We have multiple delivery options

  • Next day carrier
  • 2-3 day carrier
  • Click & Collect from store


The cost of the carriage will be displayed before your final checkout. Free delivery is available on most items for orders over £150, exceptions do apply.


  • Orders will only be dispatched and delivered on weekdays.
  • Orders for the next working day delivery must be placed before 2 pm, this gives us time to pick and pack before the carrier arrives to collect.
  • We aim to dispatch all carrier delivered items within 48hrs, and all items delivered on our own transport within 5 days, Monday to Friday.
  • A dispatch email will be sent when your goods leave us, if delivery is by the carrier, this email will include tracking information. If your order is delayed for any reason, we will contact you.


We pride ourselves on our customer service but mistakes can happen. If you receive an incorrect or faulty item, please notify us within 30 days to arrange a refund, return or exchange.

Keystone Cavity Steel Lintel S/K-90