I st Off, I'm a Design Engineer I should have known better to never order items from China,. I purchased this model and the 10' one. No In instructions and the Polycarbonat e Panels. The design is nice however the Inspections team needs to be reviewed as it's the worst have ever seen and no Instruction. the cost of additional 1" panel to fit better is about 2 cents. Trump get on there case. and keep the trade war on please.