To complement our range of dense concrete blocks, we have introduced our midi blocks.
Due to the requirements of Building Regulations part E, there are circumstances where the use of a 140mm wide dense concrete block is the best solution. There is also pressure to reduce the mass of individual units to below 20kg.
Midi blocks have been designed to satisfy both these requirements, coming in two sizes – M290 or M440.
Stowell midi blocks have a compressive strength of 10.4 N/mm2 and a density of 2050kg/m3. This gives a when-built wall mass of approximately 280kg/m2 using either M290 blocks or M440 blocks, which gives a sound insulation of 47db (A)*
17.5 N/mm2 also available to order.
†Close-texture midi blocks are also available to order (7.3 N/mm2), please CLICK HERE for more information.
Stowell M290 blocks have a face size of 290 x 215mm – two thirds the length of a standard block – and are built with a course height of 225mm. Two courses match two courses of standard blockwork or six courses of brickwork.
Stowell M440 blocks have a face size of 440 x 140mm – two thirds the height of a standard block – and are built with a course height of 150mm. Three courses match two courses of standard blockwork or six courses of brickwork.
Also available are 215 x 140 x 65mm dense course adjusters which can be used with both our M290 and M440 midi blocks.
*Calculated using mass law curve - BS8233 (with two skins of dense plaster each 25kg/m2)
All products are available
Prices on application.
Telephone our sales office for further information and
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