i know this is 11 years old, but make sure you apply your masonite at an angle with small gaps between each screw down to account for humidity change, and be sure to seal around the edges, your yop layer of plywood should be treated with a water proofing paint atleast 3 layers, and then your masonite should be treated atleast 5 times to enure its fully sealed
We used to kick out plexiglass bus stop sheets that were perfect 4x8. Counter sink screws. That was in late 80’s. Don’t think bus stops have those anymore? So just roll with Masonite people if it gets damaged just replace as simple as that.
the math for transition thickness 2 pcs 3/4 inch ply plus 46 1/2 will equal 48 inches. plywood width , 3/8 plywood x2 equal 3/4 so 3/4 flat deck will line up with transition with double layer 3/8 plywood do math or take measurements on where you put the screws so when you put the masonite on you dont run into screws and use a countersink for screws
tip use 3/4 plywood for flat bottom use 2 layers 3/8 plywood for transition use 3/4 plywood for transition templates make 8 instead of 4 ,cut 2x4's or 2x6's 46 1/2 inches connect transitions together attach 2 transitions together ,this is far more stronger than using just 2 transitions and attaching them with long 2x4's or 2x6's there will be no soft spot in the middle of your transitions i have been building ramps since the early 70's they never fail
It costs $1200 for me to make mine in 2022. I needed concrete blocks bc there is no level land in my yard so it added about $100. I also got outdoor paint to protect the wood and a tarp to cover it all so the costs add up as you need more things for it.
Skatelite is forever the best you can get, best product and the best crew. Only thing better is concrete Price wise you can't beat Skatelite for its quality and has 'factory blemished sheets' (which are still 100% perfect quality) for only $75 a sheet with a flat freight Shipping of $350.
I like the warning at the start, some moron tries to sue random youtubers because their son somehow managed to kill themselves on a ramp they built themselves
My mate has wheels on his board that are basicly a hard resin and even those stick to it, metal just sucks ass for half pipes. Good for bmx, awful for skating