Q1: what is material of your pergola made of? A1:The material of beam,post and beam are all aluminium alloy 6063 T5.The material of accessories are all stainless steel 304 and brass h59. Q2: What is the longerst span of your louver blades? A2:The maximum span of our louver blades is 4m without any sagging. Q3:Can it be mounted to the wall of house? A3:Yes,our aluminum pergola can be attached to an existing wall. Q4: What color fo you have? A4: Usual 2 standard color of RAL 7016 anthracite grey or RAL 9016 traffic white or customized Color. Q5: Whats the size of pergola do you do? A5:We are the factory,so usual we custom made any sizes according to customers'request. Q6: What's the rainfall intensity,snow load and wind resistance? A6:Rainfall intensity:0.04 to 0.05 I/s/m2 Snowload:Up to 200kg/m2 Wind resistance:It can resist 12 grade winds for closed blades. Q7:What types of features canl add to the awning? A7:we also supply an integrated LED lighting system,zip track blinds,side screen,the heater and automatic wind and rain sensor that wil automatically close the roof when it starts raining. Q8: What's your delivery time? A8:Usually 10-20 working days upon receipt of 50% deposit. Q9: What's your payment term? A9:We accept 50% payment in advance,and the balance of 50% will be paid before shipment. Q10: What about your package? A10:Wooden box packaging.(not log,no fumigation required) Q11:What about your product wattanty? A11: We provide 8 years of pergola frame structure warranty,and 2 years of electrical system warranty. Q12: Wil you provide you th deailsed installation or video? A12: Yes, we wil provide you the installation instruction or video.