3mm Horticultural greenhouse glass is stocked in 5 sizes and can be cut to your own size, simply choose the size larger than you need and add your own sizes for cutting. You can also add putty, mastic strip or clips to your order. Your order will be confirmed and you will be texted once your glass is available for collection normally within 1-2 days. The collection is from our COVID safe collection area at the rear of our factory. If you are shielding and live in Cambridge we offer free delivery for greenhouse glass – please select collection and note this with your order.