/diy/ - Do It Yourself

>>1809756
scaffold pole! it comes with every kind of clamp, pivot and fixing you can imagine, it's weldable in a pinch, it's hot dip galvanised so it lasts 50 years on the seafront.
you can use two sticks of scaffold, a swivel coupler and a parallel coupler to make a tilt-up mast, see >>1809527 , the short pole is anchored to the wall and floor, the long pole's 19' with the pivot point at 5', it goes up pretty easy just by hand. you could fit a boat trailer winch and a pulley and bring it up and down with one finger.