Catnic BHD100 Box Lintel Internal Wall Heavy Duty Length:1500mm Earthwool DriTherm Cavity Slabs have

Earthwool DriTherm Cavity Slabs have a special additive to make the product water repellent

colours and textures from across the range

Precision-engineered for structural use in load-bearing and challenging conditions

1830mm x 610mm (6ft x 2ft): Larger size for more extensive projects

Step 7: Fill the Joints

Catnic BHD100 Box Lintel Internal Wall Heavy Duty Length:1500mm Earthwool DriTherm Cavity Slabs haveCatnic BHD100 Box Lintel Internal Wall Heavy Duty is a galvanised steel lintel designed for heavy duty internal wall applications. Built to support solid single leaf internal or external walls, it provides full structural loading at installation. The staggered slot pattern across its underside forms an integral plaster key, reducing heat loss and improving finish quality. Available in spans from 750mm to 4800mm, this lintel weighs approximately