I like New England Ropes products.
Sta-set is what most of our ropes are in 1/4, 5/16, 3/8, 1/2 and a few feet of 5/8" diameters and different lengths--about 600 feet all together. Our thin rope is Endura 12--a sail racing line where even 1/8" rope is absolutely unbreakable by a human. Well over 2500 pounds tensile strength.
The only problem with yacht braids is that they are specifically made from dacron or higher-tech synthetics to NOT stretch! IF you want that, then they are fine, since they can be had with soft coverings. The DANGER is that their lack of stretch can exacerbate any tendency to cut off circulation if tied too tight.
Of those, Sta-set has among the "highest" stretch, because it's an "old-school" (for these days) Dacron, and not an Aramid. Still, under bedroom loads (unless you're hoisting the entire trailer containing the bedroom), the stretch is negligible.
IF you use yacht braid, AND you want a bit of stretch, use NYLON, which is found in mooring lines. The cheap polypropylene is TOTALLY UNSUITABLE, because it is VERY slippery and will not hold a knot.
P.S. I've been sailing for 45+ years, and have used Sta-set X extensively in the past.