Solid Medium Density 3.6N Concrete Block blocks are extremely versatile and can be used in a number of situations. They have high strength which means they are suitable for creating load bearing walls. They also have some sound insulation as well as being water resistant. They are also able to receive a plaster coating and they create a good base for fixings. For a block with thermal capabilities, see Celcon Solar Aerated Concrete Block 2.9N. Give our team a call on 01628 674910 for further advice or assistance. PLEASE NOTE : The image is for representative purposes only, - if you are unsure please order a sample