I agree with fen. I have also some situation where wither width or height was wrong calculated. So I have to write a small fix. In http://stackoverflow.com/questions/2686043/correctly-calling-setgridwidth-on-a-jqgrid-inside-a-jqueryui-dialog/2696776#2696776 I posted this code.

With the height of jqGrid I have problem only in IE6. Mostly if my grid should has a horizontal scrolling its height was exactly one row too low.

With the width of jqGrid I have problems in following situation:

I have a block element (div) which tooks allways 100% or 98% of the page width. jqGrid is the child element of such block. I prefer to have no scrolling in the grid if parent block allow this. In my cases the width of all columns were allways exactly 5px too less as needed I one has horizontal scrolling which not needed. It seems a bug.

Other problem: the grid size which will be calculated by jqGrid can be set to the size larger as the parent block element (div). I verify whether the situation take place and then if needed reduce the jqGrid width. So user can scroll inside of the page, but he needs not scroll the page. (Horizontal scroll bar will have jqGrid abd not the web page).

Best regards
Oleg