Keystone Lintel Manual 08

Lintel Manual 08

Cl/SfB (31.9) Hh2

The UK and Irelands leading supplier of Steel Lintels and the authority on providing lintel solutions to builders, developers, builders merchants and end-users.

Keystone Lintels Limited, the leading manufacturer of steel lintels was founded in 1989. The short history of Keystone has been one of relentless expansion and continuous innovation whilst redefining the meaning of service in the lintel industry.Production facilities in Swadlincote and Cookstown provide an efficient, flexible and ergonomic working environment, which is part of the culture of quality and service at Keystone.

Keystone Group HQ, Cookstown

Keystone Lintels, Swadlincote

Keystone the lintel company with genuine commitment to servicing your lintel requirements.Keystones most important asset is its people. Every employee undergoes training on our NVQ approved premises. We have also received the Investors in People accreditation.

Keystone People Professional Trained and Motivated Accessible Responsive Extensive Product Knowledge

The Keystone support package includes: Individual design service on full range of lintels On site technical assistance and measurement Free scheduling and specification service Extensive range of steel lintels and structural supports Structural performance calculations Best delivery service in the industry Comprehensive product literature

ContentsCompany Prole Lintel Selection Chart Technical Data Cavity Wall Lintel (50-165mm Cavity) Extra Heavy Duty Lintels Eaves Lintels Archboards Solid Wall Lintels Single Leaf Lintels Box Lintels Thin Joint Lintels Cavity Trays Extended Range RIBA Assessed CPD Special & Custom-made Lintels Full Arch Segmental Arch Venetian Arch Apex Arch Parabolic Arch Gothic Arch Corner Bow Square Bay Splayed Bay Sun Lounge Lintel Bow Sun Lounge Lintel Venetian Arch Sun Lounge Lintel Apex Sun Lounge Lintel Brick Arch Sets Windposts Keystone Special Projects Keylite Roof Windows

page2 4 6 8 17 18 18 19 20 22 24 26 28 29 30 32 32 33 33 34 35 36 37 38 39 40 44 45 46 47 48 50 58

Interactive website with AutoCAD drawings RIBA Assessed CPD Online Steel Lintels The Definitive Guide. Visit www.keystonelintels.co.uk/cpd BMF & NMBS Approved Merchant e-Learning - Staff Training Online Visit www.keystonelintels.co.uk/merchant

Lintel Selection Chart50-70mm Cavity Wall LintelsStandard Loading

S/K-50Page 8

S/K-50 WILPage 8

S/K-50 WOLPage 8

HD/K-50Heavy Duty Loading Page 9

HD/K-50 WILPage 9

CFS/K-50Page 9

70-90mm Cavity Wall LintelsStandard Loading

S/K-70Page 10

S/K-70 WILPage 10

S/K-70 WOLPage 10


HD/K-70 WILPage 11

CFS/K-70Page 11

90-110mm Cavity Wall LintelsStandard Loading

S/K-90Page 12

S/K-90 WILPage 12

S/K-90 WOLPage 12


HD/K-90 WILPage 13

CFS/K-90Page 13

110-165mm Cavity Wall Lintels110-130mm Cavity

S/K-110Page 14

S/K-110 WILPage 14

HD/K-110Page 14

S/K-130130-150mm Cavity Page 15

S/K-130 WILPage 15

HD/K-130Page 15

S/K-150150-165mm Cavity Page 16

S/K-150 WILPage 16

HD/K-150Page 16

Extra Heavy Duty Lintels

X/KPage 17

X/K-WILPage 17

X/K-215 WILPage 17

Solid Wall Lintels

INT/KPage 19

SW/KPage 19

IB/K (2c)Page 19

Box LintelsStandard Loading

BOX/K-60 BOX/K-75Page 22

BOX/K-100Page 22

BOX/K-150Page 22

HDBOX/K-100Heavy Duty Loading Page 23

HDBOX/K-150Page 23

HDBOX/K-200Page 23

Single Leaf Lintels

SB/KPage 20

SL/KPage 20

SW/K-100Page 20

T/KPage 21

B/KPage 21

RB/KPage 21

Eaves Lintels and Arch Boards

EL/K-50Page 18

EL/K-90Page 18

Arch BoardsPage 18

CPD Online: www.keystonelintels.co.uk/cpd

Special & Custom-made LintelsS/K-50 215 WILPage 8

Full Arch Lintel

Segmental Arch Lintel

Venetian Arch Lintel

CFS/K-50 WILPage 9

S/K-70 215 WILPage 10 Page 32 Page 32 Page 33

CFS/K-70 WILPage 11

Apex Arch Lintel

Parabolic Arch Lintel

Gothic Arch Lintel

S/K-90 215 WILPage 12

CFS/K-90 WILPage 13 Page 33 Page 34 Page 35

CFS/K-110Page 14

Corner Lintel

Bow Lintel

Square Bay Lintel

CFS/K-130Page 15

CFS/K-150Page 16 Page 36 Page 37 Page 38

IBX/KPage 17

Splayed Bay Lintel

Sun Lounge Lintel

Bow Sun Lounge Lintel

IB/K (3c)Page 19

BOX/K-200Page 22

Page 39

Page 40

Page 44

TJ/K & TW/KThin Joint Lintels

Venetian Arch Sun Lounge Lintel

Apex Sun Lounge Lintel

Keystone Special Projects

Page 24

Cavity TraysPage 26

Roller Shutter LintelPage 28

Brick Arch SetsPage 47 Page 45

Page 46

Page 50

WindpostsPage 48 Page 58

Technical Data

Material

Keystone Lintels are manufactured from Z1 grade galvanised steel to BS 2989: 1982 (BS EN 10327: 2004) with a zinc coating type G600 (H3) giving a minimum zinc coating of 600g/m2 (including both sides). In accordance with BS5977: part 2, 1983 (BS EN 845-2: 2003) all cut edges are treated with a corrosion resistant paint.

Insulation

The Keystone Lintel core is entirely filled with CFC free insulation, which completely fills all voids in the lintel, particularly at the apex ensuring continuity with wall insulation and reducing cold bridge effect in this area. This ensures that the Keystone Lintel range is one of the most thermally efficient lintels available with a thermal conductivity of 0.033 W/mk.

Quality

Keystone Lintels are manufactured to the highest quality and are continually assessed by the BSI to ensure our quality assurance systems comply with BS EN ISO 9002: 1994. The Keystone People are also a highly trained and motivated workforce. Our manufacturing premises have been approved as a N.V.Q. Training Centre and the company has also received the Investors In People Accreditation.

CERTIFICATE NO. FM 21541 ISO 9002 29002 BS 5750

Structural Performance

The Keystone Lintel range have safe working loads shown in each applicable loading table, taking into account the differential loading arrangements which are common to traditional cavity wall construction. Differential Load 3:1 ratio, 75% load on inner leaf. Differential Load 19:1 ratio, 95% load on inner leaf. Lintel Types HD/K, S/K-50 (215WIL), S/K-70 (215WIL), SK-90 (215WIL), S/K-110, S/K-130, S/K-150, SB/K, T/K, SL/K, RB/K, TJ/K, TW/K, INT/K, SW/K, IB/K, EL/K-50, EL/K-90, CFS/K, X/K have been tested as a composite unit with surrounding masonry, built in accordance with BS5628. These composite units have been tested in accordance with the requirements of BS5977: part 2 1983.

Testing

BBA Extensive testing has been carried out on the Keystone range of lintels. The lintel testing procedure and Agrment Board assessment is carried out under the direct supervision of Dr. David OConnor BSc, C.Eng, MIStrut E, MICE, Lecturer, Dept of C. Eng, University of Ulster.

Fire Test The Keystone S/K lintel range has been subjected to fire tests at the Warrington Fire Research Station and has achieved a one hour fire certificate by successfully supporting their imposed load for 48 hours after the tests.

Durability The service life of lintels shall be the same as that anticipated for the building within which they are used, when used in conjunction with a flexible D.P.C. and where the normal humidity and condensation levels of a habitable building exist. The Keystone Lintel range complies with the technical requirements of the Housing Association Property Mutual (HAPM) with appropriate adjustment factors.


Technical Data

Installation

Lintels should be installed with a minimum end bearing of 150mm bedded in mortar, levelled along its length and across its width. With cavity walls, both leaves should be raised together to avoid excessive eccentricity of loading and be allowed to cure before applying floor or roof loads. Blockwork is permitted to overhang the lintel flange by a maximum of 25mm. Point loads and concrete floor units should not be applied without prior consultation with our Technical Department or a Structural Engineer. Care should also be exercised in the selection of lintels for each application with regard to wall construction, cavity width and loads applied. COSHH All components and materials in our products are considered as non-hazardous to health under normal conditions of use as determined by COSHH Regulations 1994. Due care should be taken when lifting and handling lintels with regard to weights. A table of weights for individual lintel types is available on request. For further information contact our Technical Department. A cavity tray should be installed over all openings in external cavity walls.

Support for the SpecierFor queries regarding Keystone AutoCAD files please contact Fastrack on Tel: +44 (0)20 8668 4646

We provide the following: Individual Design Service on full range of Specials On-Site technical assistance and measurement Specification service for Architects and Engineers Free Take off / Scheduling Service for drawings Structural Performance Calculations Comprehensive product range literature and interactive website RIBA Assessed CPD Online Steel Lintels The Definitive Guide. Visit www.keystonelintels.co.uk/cpd

To view or download any of our architectural details and sun lounge plans visit our website at www.keystonelintels.co.uk

Keystone Lintel Prole

Negligible Cold Bridging Effect

Proled Insulation CFC free

Steel Plaster Key for improved re resistance Thermal Break Plate (Part L Compliant) for added rigidity and structural performance

50-70mm Cavity

Standard Loading

S/K-50Manufactured Length in 150mm increments Height h Thicknessh nominal

600 1200 79 1.6 12 10

1350 1500 98 2 14 12

1650 1800 110 2 19 16

1950 2100 134 2 21 17

2250 2400 150 2 21 19

2550 2700 172 2 26 22

2850 3000 172 2.6 27 20

3150 3600 209 3.2 27 20

3750 4000 209 3.2 26 19

4200* 4800* 209 3.4 27 22

Total UDL kn 3:195

48

100

Total UDL kn 19:1

S/K-50 WIL

150mm wide inner leaf Manufactured Length in 150mm increments Height h Thickness 600 1350 91 2 12 10 1500 1650 96 2 12 10 1950 2100 136 2 20 18 2250 2400 162 2 24 20 2550 3000 172 2.6 28 21 3150* 3750* 4200* 3600* 4000* 196 3.2 30 26 196 3.2 27 25 196 3.4 26 22

1800 110 2 15 13

h nominal

Total UDL kn 3:195

48

125

Total UDL kn 19:1

S/K-50 215 WILExtended n 225mm high for lintels greater than 2100mm long

215mm wide inner leaf Manufactured Length in 150mm increments Height h Thickness Total UDL kn 3:1 600* 1350* 1650* 1950* 2250* 2550* 2850* 3150* 1200* 1500* 1800* 2100* 2400* 2700* 3000* 4000* 78 2.6 25 20 100 104 2.6 25 20 120 121 2.6 25 20 140 146 2.6 30 25 175 171 2.6 30 25 225 171 2.9 35 30 225 209 2.9 40 35 225 209 3.2 40 35 225

h nominal

Total UDL kn 19:1 Fin Height95

48

210

Fin height equals lintel height up to 2100mm long

For standard loading conditions with 215mm wide inner leaf as a composite beam. To achieve loading gures, lintel must be built in with blockwork as shown.

S/K-50 WOL

150mm wide outer leaf Manufactured Length in 150mm increments Height h Thickness 600 1350 93 2.6 14 11 1500 1650 110 2.6 15 13 1800 2100 162 2.6 23 18 2250 2700 200 2.9 30 22 2850* 3150* 3000* 3600* 200 3.2 32 30 200 3.2 30 26

h nominal

Total UDL kn 3:1120

48

100

Total UDL kn 19:1


50-70mm Cavity

Heavy Duty Loading

HD/K-50Manufactured Length in 150mm increments Height hh nominal

600 1200 105 3.2 30 22

1350 1500 121 3.2 30 22

1650* 2250* 2700* 3150* 3750* 4200* 2100* 2550* 3000* 3600* 4000* 171 3.2 40 35 209 3.2 40 35 209 3.2 40 35 209 3.2 35 32 209 3.2 33 28 209 3.4 32 27

Thickness Total UDL kn 3:195

48

100

Total UDL kn 19:1

HD/K-50 WIL

150mm wide inner leaf Manufactured Length in 150mm increments Height h 600 1350 95 3.2 20 17 1500* 1800* 2250* 1650* 2100* 2700* 109 3.2 25 22 161 3.2 30 25 200 3.2 36 32

h nominal


48

125

Total UDL kn 19:1

CFS/K-50Manufactured Length in 150mm increments Height h Thickness Total UDL kn 19:195

600 1500 229 2.9 70

1650 2100 229 2.9 60

2250 3000 229 2.9 50

3150 4000 229 3.2 45

4200 4800 229 3.4 40

229

48

100

To achieve loading gures, lintel must be built in with blockwork as shown.

CFS/K-50 WIL229

150mm wide inner leaf Manufactured Length in 150mm increments Height h Thickness Total UDL kn 19:1 600 1500 229 2.9 70 1650 2100 229 2.9 60 2250 3000 229 2.9 50 3150 4000 229 3.2 45 4200 4800 229 3.4 40

95

48

125


*Continuous Bottom Plate

70-90mm Cavity

Standard Loading

S/K-70Manufactured Length in 150mm increments Height h Thicknessh nominal

600 1200 98 1.6 12 10

1350 1500 89 2 14 12

1650 1800 106 2 18 14

1950 2100 130 2 21 17

2250 2400 142 2 21 19

2550 3000 168 2.6 27 22

3150 3600 204 3.2 27 20

3750 4000 204 3.2 26 19

4200* 4800* 204 3.4 27 22

Total UDL kn 3:195

68

100

Total UDL kn 19:1

S/K-70 WIL

150mm wide inner leaf Manufactured Length in 150mm increments Height h Thickness 600 1350 93 2 12 10 1500 1650 90 2 13 11 1950 2100 134 2 19 17 2250 2400 158 2 24 20 2550 3000 167 2.6 27 21 3150* 3750* 4200* 3600* 4000* 192 3.2 30 26 192 3.2 27 25 192 3.4 26 22

1800 110 2 20 17

h nominal

Total UDL kn 3:195

68

125

Total UDL kn 19:1


215mm wide inner leaf Manufactured Length in 150mm increments Height h Thickness Total UDL kn 3:1 600* 1350* 1650* 1950* 2250* 2550* 2850* 3150* 1200* 1500* 1800* 2100* 2400* 2700* 3000* 4000* 67 2.6 25 20 100 100 2.6 25 20 120 110 2.6 25 20 140 142 2.6 30 25 175 167 2.6 30 25 225 167 2.9 35 30 225 204 2.9 40 35 225 204 3.2 40 35 225

h nominal


68

210



S/K-70 WOL


h nominal

Total UDL kn 3:1120

68

100

Total UDL kn 19:1


70-90mm Cavity

Heavy Duty Loading


600 1200 103 3.2 30 22

1350 1500 117 3.2 30 22

1650* 2250* 2700* 3150* 3750* 4200* 2100* 2550* 3000* 3600* 4000* 167 3.2 40 35 205 3.2 40 35 205 3.2 40 35 205 3.2 35 32 205 3.2 33 28 205 3.4 32 27


68

100

Total UDL kn 19:1

HD/K-70 WIL


h nominal


68

125

Total UDL kn 19:1


600 1500 229 2.9 70

1650 2100 229 2.9 60

2250 3000 229 2.9 50

3150 4000 229 3.2 45

4200 4800 229 3.4 40

229

68

100


CFS/K-70 WIL229


95

68

125



90-110mm Cavity

Standard Loading

S/K-90Manufactured Length in 150mm increments Height hh nominal

600 1200 88 1.6 12 10

1350 1500 88 2 16 13

1650 1800 107 2 19 16

1950 2100 125 2 21 17

2250 2400 150 2 23 18

2550 2700 162 2.6 27 22

2850 3000 171 2.6 27 20

3150 3600 200 3.2 27 20

3750 4000 200 3.2 26 19

4200* 4800* 200 3.4 27 22


88

100

Total UDL kn 19:1

S/K-90 WIL

150mm wide inner leaf Manufactured Length in 150mm increments Height h 600 1200 82 2 13 11 1350 1800 107 2 17 14 1950 2400 142 2 23 18 2550 3000 177 2.6 24 18 3150* 3750* 4200* 3600* 4000* 188 3.2 30 26 188 3.2 27 25 188 3.4 26 21

h nominal


88

125

Total UDL kn 19:1


215mm wide inner leaf Manufactured Length in 150mm increments Height h Thickness Total UDL kn 3:1 600* 1500* 1800* 2250* 2550* 3150* 1350* 1650* 2100* 2400* 3000* 4000* 90 2.6 25 20 100 105 2.6 25 20 120 138 2.6 30 25 175 163 2.9 35 30 225 200 2.9 40 35 225 200 3.2 40 35 225

h nominal


88

210



S/K-90 WOL


h nominal

Total UDL kn 3:1120

88

100

Total UDL kn 19:1


90-110mm Cavity

Heavy Duty Loading


600 1200 110 3.2 30 22

1350* 1650* 2250* 2700* 3150* 3750* 4200* 1500* 2100* 2550* 3000* 3600* 4000* 135 3.2 30 22 163 3.2 40 35 203 3.2 40 35 203 3.2 40 35 203 3.2 35 32 203 3.2 33 28 203 3.4 32 27


88

100

Total UDL kn 19:1

HD/K-90 WIL


h nominal


88

125

Total UDL kn 19:1


600 1500 229 2.9 70

1650 2100 229 2.9 60

2250 3000 229 2.9 50

3150 4000 229 3.2 45

4200 4800 229 3.4 40

229

88

100


CFS/K-90 WIL229


95

88

125



110-130mm Cavity

Wide Cavity Lintels


600* 1650* 1950* 2250* 3150* 4200* 1500* 1800* 2100* 3000* 4000* 4800* 95 2 16 13 121 2 22 18 145 2.6 24 18 195 2.9 27 22 195 3.2 26 19 195 3.4 25 20


108

100

Total UDL kn 19:1

S/K-110 WIL

150mm wide inner leaf Manufactured Length in 150mm increments Height h 600* 1350* 1950* 2550* 3150* 1200* 1800* 2400* 3000* 4000* 95 2 13 11 107 2 17 14 142 2.6 23 18 185 2.9 24 18 185 3.2 24 17

h nominal


108

125

Total UDL kn 19:1

SK-110 WIL range are also available to suit 215mm wide inner leaf e.g. specify S/K-110 215WIL. Contact Keystone Technical Team for load tables.


600* 1650* 2250* 3150* 3750* 1500* 2100* 3000* 3600* 4000* 125 2.9 30 20 145 2.9 30 22 195 2.9 35 30 195 3.2 32 28 195 3.2 30 26


108

100

Total UDL kn 19:1

HD/K-110 range is also available to suit 150mm wide inner leaf e.g. specify HD/K-110 WIL.

CFS/K-110Manufactured Length in 150mm increments229

600 1500 229 2.9 70

1650 2100 229 2.9 60

2250 3000 229 2.9 50

3150 4000 229 3.2 45

4200 4800 229 3.4 40

Height h Thickness Total UDL kn 19:195

108

100

CFS/K-110 range is also available to suit 150mm wide inner leaf e.g. specify CFS/K-110 WIL. To achieve loading gures, lintel must be built in with blockwork as shown.


130-150mm Cavity

Wide Cavity Lintels


600* 1650* 1950* 2250* 3150* 4200* 1500* 1800* 2100* 3000* 4000* 4800* 103 2 16 13 128 2 22 18 190 2.6 24 18 190 2.9 27 22 190 3.2 26 19 190 3.4 25 20


128

100

Total UDL kn 19:1

S/K-130 WIL


h nominal


128

125

Total UDL kn 19:1



600* 1650* 2250* 3150* 3750* 1500* 2100* 3000* 3600* 4000* 115 2.9 30 20 155 2.9 30 22 190 3.2 35 30 190 3.2 30 25 212 3.2 30 26


128

100

Total UDL kn 19:1



600 1500 229 2.9 70

1650 2100 229 2.9 60

2250 3000 229 2.9 50

3150 4000 229 3.2 45

4200 4800 229 3.4 40


128

100



150-165mm Cavity

Wide Cavity Lintels


600* 1650* 1950* 2250* 3150* 4200* 1500* 1800* 2100* 3000* 4000* 4800* 100 2 16 13 125 2 22 18 180 2.6 24 18 180 2.9 27 22 180 3.2 26 19 180 3.4 25 20


148

100

Total UDL kn 19:1

S/K-150 WIL


h nominal


148

125

Total UDL kn 19:1



600* 1650* 2250* 3150* 3750* 1500* 2100* 3000* 3600* 4000* 125 2.9 30 20 160 2.9 30 32 180 3.2 35 30 180 3.2 30 25 200 3.2 30 26


148

100

Total UDL kn 19:1



600 1500 229 2.9 70

1650 2100 229 2.9 60

2250 3000 229 2.9 50

3150 4000 229 3.2 45

4200 4800 229 3.2 40


148

100



50-110mm Cavity

Extra Heavy Duty Lintels

X/K-50/70/90Galvanised steel ange to outer leaf 203 x 133 x 30kg/m UB

Manufactured Length to 0600 customers requirements 4800 End bearing Total UDL kn 200 86

5200 200 75

5400 200 70

5800 200 65

6200 200 60

6600 200 55

To achieve loading gures, lintel must be laterally restrained. Lintel must be suitably propped during construction. X/K lintel range is available to suit 110-165mm cavity widths, e.g. specify X/K-110, X/K-130 and X/K-150.

Nominal

X/K-50/70/90 WILGalvanised steel ange to outer leaf 203 x 133 x 30kg/m UB

150mm wide inner leaf Manufactured Length to 0600 customers requirements 4800 End bearing Total UDL kn 200 86

5200 200 75

5400 200 70

5800 200 65

6200 200 60

6600 200 55

To achieve loading gures, lintel must be laterally restrained. Lintel must be suitably propped during construction. X/K WIL lintel range is available to suit 110-165mm cavity widths, e.g. specify X/K-110, X/K-130 and X/K-150.

Nominal

X/K-50/70/90 215 WILGalvanised steel ange to outer leaf 203 x 133 x 30kg/m UB

215mm wide inner leaf Manufactured Length to 0600 customers requirements 4800 End bearing Total UDL kn 200 86

5200 200 75

5400 200 70

5800 200 65

6200 200 60

6600 200 55

To achieve loading gures, lintel must be laterally restrained. Lintel must be suitably propped during construction. X/K 215 lintel range is available to suit 110-165mm cavity widths, e.g. specify X/K-110, X/K-130 and X/K-150.

Nominal

IBX/KGalvanised steel ange to outer leaf 230 x 90 x 32.76kg/m PFC

215mm wide solid wall Manufactured Length to 0600 customers requirements 4800 End bearing Total UDL kn 200 86

5200 200 75

5400 200 70

5800 200 65

6200 200 60

6600 200 55

To achieve loading gures, lintel must be laterally restrained. Lintel must be built in with block/brickwork as shown and suitably propped during construction.

195


Eaves Lintels and Arch Boards

EL/K-50

To suit cavity 50-80mm Manufactured Length in 150mm increments Height h Thickness Total UDL kn 600 1500 95 2 18 1650 2100 134 2 20 2250 2400 150 2 22 2550 2700 150 2.6 25

40

48

100

The EL/K-50 range can be supplied to suit 150mm inner leaf e.g.specify EL/K-50 WIL. For standard loading conditions at eaves level as a composite beam. To achieve loading gures lintel must be built in with blockwork and wall plate as shown.

EL/K-90

To suit cavity 85-120mm Manufactured Length in 150mm increments Height h Thickness Total UDL kn 600 1500 95 2 18 1650 2100 134 2 20 2250 2400 150 2 22 2550 2700 150 2.6 25

40

88

100

The EL/K-90 range can be supplied to suit 150mm inner leaf e.g.specify EL/K-90 WIL. For standard loading conditions at eaves level as a composite beam. To achieve loading gures lintel must be built in with blockwork and wall plate as shown.

Arch Board

The Keystone Arch Board is available in white plastic spandrel board and also in soft wood spandrel board. The design incorporates a rise of 75mm for openings from 450mm to 1810mm and 150mm for 1950mm to 2450mm openings.

To suit opening sizes (mm) 450-500 600-650 900-950 1025-1075 1200-1250 1325-1375 1460-1510 1600-1650 1675-1725 1760-1810 1950-2000 2100-2150 2300-2350 2400-2450


Solid Wall Lintels

INT/K-100100

Overall Length Max Span28

900 700 5 10

1050 850 5 10

1100 900 5 10

1200 1000 5 10

Total UDL kn with 150mm coursing Total UDL kn with 225mm coursing

For standard loading conditions to support internal openings in 100mm thick walls. The INT/K range can be supplied to suit 75mm wide walls e.g. specify INT/K 60.

SW/KManufactured Length in 150mm increments Height hh nominal

600 1200 55 2.6 6

1350 1650 86 2.6 8

1800 2100 86 2.9 8

2250 2700 113 3.2 10

Thickness Total UDL kn195

For light duty loading conditions for 215mm solid wall construction. To achieve loading gures, lintel must be built in with block/brickwork as shown and suitably propped during construction.

IB/K (2c)Manufactured Length in 150mm increments Height h152

600 1800 152 2.6 30

1950 2100 152 2.9 30

2250 3000 152 3.2 30

Thickness Total UDL kn

195

For heavy duty loading conditions for 215mm solid wall construction. To achieve loading gures, lintel must be built in with block/brickwork as shown and suitably propped during construction.

IB/K (3c)Manufactured Length in 150mm increments Height h227

600 1800 227 2.6 45

1950 2100 227 2.6 40

2250 3000 227 2.9 40

3150 4000 227 3.2 40

4200 4800 227 3.4 35

Thickness Total UDL kn195

For heavy duty loading conditions for 215mm solid wall construction. To achieve loading gures, lintel must be built in with block/brickwork as shown and suitably propped during construction.

Single Leaf Lintels

SB/KManufactured Length in 150mm increments Height h Thicknessh nominal

600 1350 80 3.2 2.5

1500 1800 100 3.2 5

1950 2250 150 3.2 7

2400 2700 200 3.2 8

Total UDL kn

95Optional factory tted Cavity Closer (spec. SB/Kcc)

For use to support the outer leaf of cavity wall construction. The SB/K lintel should be suitably propped during construction. The SB/K lintel can be supplied with no top bend (e.g.specify ANG/K).

SL/KManufactured Length in 150mm incrementsh nominal

600 1350 80 2.6 5

1500 1800 150 2.6 10

1950 2400 227 2.6 12

2550 2700 227 2.9 12

2850 3000 227 3.2 12

Height h Thickness Total UDL kn95

For use to support single leaf or outer leaf of cavity wall construction. To achieve loading gures, lintel must be built in with brickwork as shown and be suitably propped during construction.

SW/K-100Manufactured Length in 150mm increments Height h Thicknessh nominal 95

600 1200 55 2.6 6

1350 1650 86 2.6 8

1800 2100 86 2.9 8

2250 2700 113 3.2 10

Total UDL kn

Suitable for 100mm and 150mm wide solid walls. To achieve loading gures, lintel must be built in with block/brickwork as shown and suitably propped during construction.


Single Leaf Lintels

T/K-50/70/90Lateral restraint clips at 500mm centres xed with 4mm x 50mm galvanised nails

Manufactured Length in 150mm increments Height h Thickness

600 1650 102 2.6 5

1800 2400 155 2.6 8

2550 3000 185 2.9 9

3150 4000 250 3.2 12

4200 4800 250 3.4 12

h nominal

Total UDL kn

For use with timber frame construction. The T/K lintel must be used in conjunction with lateral restraint clips and a tight tting timber batten, as shown, to prevent twisting. The T/K range can be supplied to suit wider cavities: e.g. specify T/K-70, T/K-90.95Nominal

B/K-50/70/90Manufactured Length in 150mm increments Height h Thicknessh nominal

600 2100 150 2.6 7

2250 2400 225 2.6 8

2550 3000 225 2.9 10

3150 4000 225 3.2 12

4200 4800 225 3.4 12

Total UDL kn

95

Nominal

For use with inner leaf concrete lintel. The B/K lintel must be used in conjunction with a tight tting timber batten, as shown, to prevent twisting. The B/K range can be supplied to suit wider cavities: e.g. specify B/K-70, B/K-90.

RB/K-50/70/90Manufactured Length in 150mm increments Height h Thickness Total UDL kn/m 600 1500 175 2.6 7.5 1650 2400 200 2.9 7.5 2550 3000 250 2.9 7.5 3150 4000 250 3.2 7.5 4200 4800 250 3.4 7.5

95

Nominal

For use with integral concrete ring beams. The RB/K type lintel must be bolted to the concrete ring beam at 400mm c/c using M16 rawbolts. The RB/K type range can be supplied to facilitate various cavity widths: e.g. specify RB/K-50, RB/K-70, RB/K-90.

Box Lintels

Standard Loading

BOX/K-6075 95

Manufactured Length in 150mm increments Height h

600 1500 95 1.6 15

1650 1800 95 1.6 10

Perforated steel for plaster key


Used to support internal openings in 75mm wide walls. (Can be insulated as optional extra).

BOX/K-7595 75

Manufactured Length in 150mm increments Height h

600 1650 75 1.6 15

1800 75 2 10



Used to support internal openings in 100mm wide walls. (Can be insulated as optional extra).

BOX/K-10095

Manufactured Length in 150mm increments Height h Thickness

600 1500 75 2 18

1650 1800 150 1.6 18

1950 2400 150 2 25

2550 2700 150 2 20

2850 3600 215 2.6 35

3750 4000 215 2.6 30

4200 4800 215 2.6 24

95 75

h nominal


Total UDL kn

Used to support internal or external openings with 100mm wide walls. (Can be insulated as optional extra).

BOX/K-150145

Manufactured Length in 150mm increments Height h Thickness Total UDL kn

600 1800 150 1.6 18

1950 2400 150 2 25

2550 2700 150 2 20

2850 3600 215 2.6 35

3750 4000 215 2.6 30

4200 4800 215 2.6 24

h nominal


Used to support internal or external openings with 150mm wide walls. (Can be insulated as optional extra).

BOX/K-200Manufactured Length in 150mm increments Height h Thicknessh nominal

600 1800 150 1.6 18

1950 2400 150 2 25

2550 2700 150 2 20

2850 3600 215 2.6 35

3750 4000 215 2.6 30

4200 4800 215 2.6 24

Total UDL kn

Used to support internal or external openings with 215mm wide wall. (Can be insulated as optional extra).200Perforated steel for plaster key


Box Lintels

Heavy Duty Loading

HDBOX/K-100Manufactured Length in 150mm incrementsh nominal

600 1200 150 2.6 47

1350 1800 150 2.6 44

1950 2700 215 2.6 38



For heavy duty loading conditions to support internal or external openings with 100mm wide wall. (Can be insulated as optional extra).

HDBOX/K-150Manufactured Length in 150mm incrementsh nominal

600 1200 150 2.6 47

1350 1800 150 2.6 44

1950 2700 215 2.6 38



For heavy duty loading conditions to support internal or external openings with 150mm wide wall. (Can be insulated as optional extra).

HDBOX/K-200Manufactured Length in 150mm increments Height h Thicknessh nominal

600 1200 150 2.6 47

1350 1800 150 2.6 44

1950 2700 215 2.6 38

Total UDL kn

For heavy duty loading conditions to support internal or external openings with 215mm wide wall. (Can be insulated as optional extra).200Perforated steel for plaster key

Thin Joint Cavity Lintel SystemA New Development in Cavity Wall Construction The TJ/K lintel range enables fastrack construction of the structural internal leaf before the external leaf is built*

Standard Loading

Fully Insulated Cavity Thermal Break Plate Part L Compliant

Award-winning Earthdome species Keystone TJ/K LintelThe Secretary of State for Trade and Industry, presented the Earthdome project with top environmental award. Earthdome is a pioneering project where super thermally efcient, ecologically sound and hypo-allergenic homes are being constructed using the most thermally efcient materials available - Keystones Thin-Joint lintels tted the bill! The Earthdome Eco project won the prestigious Green Apple Environment Award. It was selected to be British Green Champion - top of its class for Fuel Power & Energy. Winning this award is likely to give this innovative project access to European Environmental Awards.

TJ/K-50Lateral restraint clips at 500mm centres xed with 4mm x 50mm galvanised nails Level uniform surface for 3mm joint

Manufactured Length in 150mm increments Specication Height h

600 1500 A 130 5 10 3

1650 1800 B 160 5 15 5

1950 2100 C 225 3.2 18 8

2250 2700 D 225 5 27 9

2850 3000 E 225 5 25 10

h nominal

Extended C section 225mm high for lintels greater than 1800mm

Thickness Total UDL (Kn) Internal Leaf Total UDL (Kn) External Leaf

95

48

100

Thermal Break Plate Part L compliant

For standard loading conditions in 50mm wide thin joint cavity wall construction. To achieve loading gures lintels must be built in as shown with rmly butted perpendicular joints. The TJ/K lintel range can be supplied to suit wider cavities e.g. specify TJ/K-70, TJ/K-90.

Note: For other loading conditions contact the Keystone Technical Dept.

*Subject to structural conditions


Thin Joint Solid Wall LintelsThe TW/K lintel range has been developed by Keystone for use over openings in thin joint solid wall construction. External Cladding Cold Outer Surface Warm Inner Surface

Thermal Break (Part L Compliant)

TW/K-215Manufactured Length in 150mm increments Height hh nominal

600 1200 55 2.6 6

1350 1650 86 2.6 8

1800 2100 86 2.9 8

2250 2700 113 3.2 10

Thickness Total UDL kn195 Thermal Break

For light duty loading conditions for 215mm solid wall construction. To achieve loading gures, lintel must be built in with block/brickwork as shown and suitably propped during construction. The TW/K lintel range is available to suit 250 to 300mm wide walls e.g. specify TW/K-250, TW/K-300.

HDTW/K-215Manufactured Length in 150mm increments Height h Thickness Total UDL kn150

600 1800 152 2.6 20

1950 2100 152 2.9 22

2250 3000 152 3.2 27

For heavy duty loading conditions for 215mm solid wall construction. To achieve loading gures, lintel must be built in with block/brickwork as shown and suitably propped during construction. The HDTW/K lintel range is available to suit 250 to 300mm wide walls e.g. specify HDTW/K-250, HDTW/K-300.195 Thermal Break

ITW/K-215Manufactured Length in 150mm increments Height h Thickness Total UDL kn227

600 1800 227 2.6 45

1950 2100 227 2.6 40

2250 3000 227 2.9 40

3150 4000 227 3.2 40

4200 4800 227 3.4 35

For heavy duty loading conditions for 215mm solid wall construction. To achieve loading gures, lintel must be built in with block/brickwork as shown and suitably propped during construction. The ITW/K lintel range is available to suit 250 to 300mm wide walls e.g. specify ITW/K-250, ITW/K-300.

195 Thermal Break

Keystone Lintel Manual 08

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