How to Do it With Marshalltown Tools

Masonry Tips and Techniques
Types and Sizes

There are two kinds of cement blocks: Standard concrete and light aggregate. Either one is suitable for building walls, although the aggregate is lighter, easier to handle and has much higher insulating qualities. Both types of concrete blocks are available in various sizes and shapes to fit the requirements of the job. The standard size of a concrete block is 7 5/8" x 7 5/8" x 15 5/8".

When using concrete blocks, work out your dimensions in multiples of 8" or 16". This will allow for a mortar joint thickness of 3/8". Little if any cutting of blocks will be necessary.