A:AnswerThe EasyClean™ Interior of all units are gray in color. No sure what you mean by "What is the cabinet made of". If you want to know the material, I'm sorry the factory did not provide that specification, https://www.lg.com/us/support/products/documents/LMV1831%20Spec%20Sheet.pdf. ^Daphane
A:AnswerNo, there is not a timer on the cooktop light. There is an Energy Saver feature. The Energy Saving feature saves energy by turning off the display by pressing the Energy Saving button. The display will automatically turn off after 5 minutes of idleness if the clock has not been set. If the clock has been set, then the display will not automatically turn off. ^Daphane
A:AnswerI believe the weight was between 40-50 pounds, I want to say around 48. I would not recommend attempting to install it alone.
It may be possible to install alone if someone were rather strong and experienced with microwave installs, but I wouldn't try it as I imagine you might increase the risks of injuring the unit or yourself. I had no prior experience. I installed it with a family member and was very thankful that I had the assistance, particularly for getting it set on the wall support, which you need to do at an angle before you tilt it back, thread the power cord through the cabinet hole, and put the screws in the top.
A:AnswerYes; when installing the microwave, there’s a metal door that you can screw into the top or back to block the air flow so it can either vent out the top or the back
A:AnswerIt does come with a bracket to mount to the wall. You rest it on the bracket before tipping it back and putting the screws in the top through the cabinet.
A:AnswerI am not sure about that, no guidance is offer in the manual for side clearance does this need on the left for the hinge to open. Please seek answers at https://lgcommunity.us.com. The LG Community Forum is a great resource for getting help from other LG customers. ^Daphane