Ratcheting straps have mechanical means of tightening and holding tension by means of a sort of gear and tooth, with slack being taken by a handle reeling up the extra. I picture Lashing straps as having less mechanism involved with slack being adjusted by buckles, but I think some people refer to ratchet type as lashing straps interchangeably. Down here we just call them ratchets. I cant quite understand how you are using this loop lock cover from the description as there are usually studs protruding from the deck to which the straps are stretched too, and hooked on, with the covers being made to fit. If you just need the extension because your straps are too short, ratchet straps should work. Just be mindful not to over do it, because you can exert a lot of tension with them.