Im building a single skin workshed in back garden, 7m x 4m out of 140mm thick blocks? Question i have is would i need to build piers if i built it 140mm high and 215mm face down so width of walls will be 215mm i know you have to build piers if using 100mm blocks single skin? And if i built it other way would i need piers if 140mm width rather than my first option? Thanks
Hi v6scorpion If you are building a single storey wall with returns either end and are using concrete blocks (as opposed to aerated concrete) then if laying the blocks flat to create a 215 thick wall you will not need piers. If you are going to use aerated concrete blocks or reduce the thickness to 140mm you will probably need a central pier. Regards S
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