Technical Support

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Cavity Eaves Lintels – 130-175mm 

Must be propped during installation to achieve loads. Requires fully bonded masonry and a continuous wall plate.



  • We are the only lintel manufacturer to hot-dip galvanize after fabrication providing up to 50% more zinc protection than other approved coatings.
  • Post-fabrication galvanizing leaves no surface with inferior paint protection
  • On top of our industry-leading performance, you’ll also enjoy the unlimited support of our entire technical team, free of charge


Length 750-1050 1200-1350 1500-1650 1800-2100 2250-2400 2500 2700-3000 3150-3900
L (kN) 15 15 15 19 19 19 19 19
W (kg/m) 5.8 5.9 7.3 8.3 10.1 10.9 11.8 14.4
H (mm) 97 102 102 132 141 157 181 197

(L) Load SWL/UDL value (W) Weight (H) Height 

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Brand Birtley
Generic Ref CBEV150
Product Range Cavity Wall Eaves Lintels
Product Sub-range 130-175mm Cavity
Product Type Eaves Duty Cavity Wall Lintel - 100mm Inner Leaf
European Standard/ETA BS EN845-2:2013+A1:2016
Test Standard EN846-9:2000/2016
Notified Body Lucideon Ltd (NB 1289)
Material Mild Steel S275JR to BS EN10025-2:2004
Coating/Finish/Colour 65µm Hot Dip Galvanized to BS EN ISO 1461:2009
Thermal Performance Contact us for information
Insulation Expanded Polystyrene - BREEAM rating A+
Fire Rating 60 mins (with 2 coat plaster finish)
1. Installation requirement Bed fully on bricklaying mortar
2. Installation requirement Must be used with a cavity tray - External walls only
3. Installation requirement Requires fully bonded masonry and a continuous wall plate
4. Installation requirement 150mm Minimum end bearing
Sales Qty 1
Packaging weight 0
1. Features Supergalv coating offers superior life expectancy
2. Features Post-fabrication galvanizing leaves no surface with inferior paint protection
3. Features Lack of baseplate and factory fitted insulation reduces thermal bridging
4. Features Structural grade steel to EN10025
5. Features Plaster key to inner leaf
Option 1 Alternative material options: Ultragalv coating (150µm), Stainless Steel 1.4301 (304)
Option 2 Outer Leaf Options: Reduced length flange (RFF), No rainwater drip (ND), Render mesh (MF)
Option 3 Inner Leaf Options: No plaster key (NM), Closer plate (CP)

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