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CB70

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CB70

Standard Duty Cavity Wall Lintel 

Cavity: 70-85mm

Outer Leaf: 100mm

Inner Leaf: 100mm 

Not suitable for point loads or concrete floors. 

 

Features  

  • Supergalv coating offers superior life expectancy
  • Birtley lintels have been tested to BS 476-20:1987 to determine the fire resistance 
  • Lack of baseplate and factory fitted insulation reduces thermal bridging

 

Length 750-1200 1350-1500 1650-2100 2250-2400 2550-3000 3150-3900
L (kN) 15 15 20 22 26 26
W (kg/m) 5.8 7.1 8.3 10.1 11.5 14
H (mm) 108 108 143 148 185 201

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

Icon Caret Product Attributes

Brand Birtley
Generic Ref CB70
Product Range Cavity Wall Lintels
Product Sub-range 70-85mm Cavity
Product Type Standard Duty Cavity Wall Lintel - 100mm Inner leaf/100mm Outer 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 Not suitable for point loads or concrete floors
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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