The Marmoleum sheet product is available in a standard thickness of 2.5mm. Some colors are available in thicker (3.2mm) or thinner (2.0mm) variations. The Decibel sheets provide added acoustical benefits and are 3.5mm thick.
The sheet product is available by the yard and is cut from 79" wide rolls. A full roll is 105' in length and is approximately 77 square yards..
Forbo has a great tool which enables you to Combine Marmoleum Colors
. You can see colors adjacent to each other. You can even add a matching or contrasting color weld.
Download: Forbo Flooring Installation Manual
Download: Marmoleum Care and Maintenance Guide