The mast(s).
Stays hold the MAST
The
They steady the mast.
I believe you are referring to the shrouds and the stays that are attached to the mast(s) for stability. See the related link below:
The Mast
the masts
Stays support the mast on a sailing boat running from the mast forward and aft. Shrouds also support the mast and run from the mast to the sides of the boat.
The Mast
tabernacle
Yeah, on utility poles simply hold on the wires. It's always been like that and it will no doubt always stay that way, too
The answer is simple, the amount of weight a boat can hold depends on how big your boat is the bigger the boat the more water it displaces the more weight it can hold.
How much weight a boat will hold depends on the volume of the boat. This is called displacement. displacement is exactly equal to the weight of the water the boat displaces, that is the boat makes a hole in the water. The volume of that hole times the weight of water (64 lbs for salt water, 62.4 for fresh water) - displacement. The volume of water displaces is equal to the volume of the boat.