20mm Shingle Suppliers If you’re looking for quality shingle aggregates for a DIY or commercial construction project, Neil Sullivan & Sons supplies 20mm shingle throughout East Anglia and East London, including Basildon, Chelmsford and Southend. Ideal for driveways, 20mm shingle is also a top choice for any drainage application, with the larger aggregates sizes providing more void spaces for water to filter through. Available for collection direct from our yard, our range of 20mm gravel is available in jumbo bulk bags or loose, so no matter how much you need for your building works, we have got you covered. If you’d like to order 20mm shingle from the team at Neil Sullivan & Sons, simply contact us today. Not sure if this is the right aggregate size for you? Give us a call and ask — we’re always happy to help.