I ordered 4 6x6 heavy duty Vertilap panels, 3 6x5 ordinary panels plus 1 made to measure Vertilap panel. Overall the quality was excellent on the 7 standard size panels but unfortunately the wrong nails had been used in assembling the made to measure panel and several protruded slightly out of the rear of the panel cross members - most had been bent over but not all - a few still protruded. This was a shame because the panels are well built and in my view are of better quality than those available in DIY centres. Delivery was quick and professional and staff helpful.