Polycarbonate Greenhouse Panels, 14 Pack Twin Wall 4mm Sheets, 4' (W) x 2'(L) x 0.16” - Impact and Shatterproof, Waterproof, UV Protected, All-Weather Outdoor Clear Roof Panels

Product arrived undamaged and specifications were accurate. Clean edges and corners.Clean cuts with a single pass using a sharp razor knife along a straight edge.Used panels and pressure treated lumber to create a removeable cover for a raised bed garden. Turned a raised bed garden into green house for spring planting.Panels were not ac clear as glass.

Easy to work with and they hold up well in the shade. I doubt they would last in sunlight due to how soft and lightweight they are. I've used them to enclose the north-wall of a screen porch and they are a nice low-cost solution.

I bought these for replacement panels based on description and found out that they're very poor quality possibly not real polycarbonate, after a a strong wind event they shattered like glass where as my others didn't resulting in complete destruction of my greenhouse. I urge everyone to steer clear of these unless you are looking for the same results as I experienced. It were possible I'd give the negative stars

It is what I ordered and fast delivery

They work but these panels are thinner and easily bend. The original panels in my small greenhouse were much more rigid and lasted years and through quite a few storms. These panels do the job but some have already blown out during the first wind storm after installation. The only reason I am giving them 3 stars instead of 1 is because they didn't break and I was able to put the panels back on the greenhouse. Before winter hits, I will have to figure out a way to keep the panels from blowing out again.

These panels are perfect for creating weatherproof barriers that still let light through. On my back patio, I built outdoor shelters for some feral/community cats. These panels make perfect windows. They’re sturdy, yet easy to cut. And the price is great. I highly recommend these polycarbonate panels.

First shipment received with good quality, but 2nd order was delivered with poor packaging which caused with damaged corners.

These appear to be identical material to the original windows on my cold frames, some of which now have brown gunk that managed to run into the channels over the years, and others of which have been damaged by falling limbs or simply from relentless UV embrittlement.