7mm scoria. 7mm Drainage Scoria, is perfect for all your Drainage needs. 7mm Scoria is a lightweight volcanic rock aggregate made from naturally vesicular (porous) lava rock, screened to an approximate 7mm nominal size. Each particle is irregular and angular, with a rough, holey surface and numerous small cavities typical of volcanic material. Timber Products We pride ourselves on having a great selection of timber products for you to choose from as part of our building supplies range. 3m minimum quantities apply. Craned off by our truck (or yours) or unloaded by forklift onsite. With its versatile size, this product is a go-to choice for the plumbing trade, offering efficiency and reliability. Scoria 7mm screenings is perfect for a wide range of applications. 7mm Scoria Crushed Rock - Aggregates & Scoria Delivery Options: Minimum 1m3 Product Description 7mm Scoria is a crushed volcanic rock Graded from 7-2mm, Its reddish/maroon in colour, lightweight and porous. *Please note while every effort is made to ensure consistency, there may be variation in the product from what is displayed online. izuvpm pyfaww pntv pdbq duvwk jitgm dbyiw hrc ijurh srtsn