Hook Downsize

[Jayashiangel]

So pattern calls for an H-hook but used G-hook to make tight/less holey however it changes the height  of the finish piece (but no final measurement size )is given  my q is how many more rows to add do to hook change ? Hope this question makes sence

[magiccrochetfan]

How long do you want it to be?  Take that number, and Measure your row height and then you'll be able figure out how many more rows to do.  Or just crochet until it looks like you want it to.  

[redrosesdz]

What are you making?

Changing hook size, changes the width gauge as well as the height.  If it's the width that you want, then adding rows like Kathy said works.  If it's both width and height, then do a swatch approximately 5"x5" to see what the stitch counts are for the new hook size.  Measure the middle 4" both directions and count your pattern repeats across and the number of rows.  From that you can calculate the size for the original pattern and adjust both the pattern repeats and row counts to the size you want.  OR you can make it with the original pattern and add a border to get the width and height that you want. (Or a combination of both changing the pattern and a border.)

[Jayashiangel]

They are adult halter tops & no measurements for halter other than S/M.....

[redrosesdz]

There's not that much difference between a G & H hook.  If it was me, I'd stick to the pattern and then add a 2-3 rounds of sc edging around the whole top.

[Granny Square]

Good advice above.  I make shortish stitches so I almost always have this problem.  Usually in a wearable you can add rows, but in a small percentage of things it can affect the shaping or fit (raglans can be an issue).

If you don't think adding rows will work, you could switch to a taller stitch; try an extended stitch before going to the next full stitch size ( for DC swatch EDC first before trying TR for example).  Or maybe alternating rows of regular and extended stitches to get the height you need if all extended is too tall.

[magiccrochetfan]

5 hours ago, Jayashiangel said:

They are adult halter tops & no measurements for halter other than S/M.....

if you have measurements for one size, it would be possible to work from that and the number of sts and rows in the pattern, to figure out what the gauge is.  once you know the gauge, you can use the # of sts and rows in the size you're making, to figure out what the measurements of your size are intended to be.   (this is assuming that the size you are making calls for the same yarn and hook size as the s/m size and thus would have the same gauge.)

But the most important thing is fitting the person you are making it for.  Are you able to get them to try it on as you work?  Or take their own measurements and communicate those to you?