you can modify this method. here you can get height and width of kendo grid . then apply your logic for tab.
function resizeGrid() {
var gridElement = $("#grid");
var dataArea = gridElement.find(".k-grid-content");
var newHeight = gridElement.parent().innerHeight() - 2;
var diff = gridElement.innerHeight() - dataArea.innerHeight();
gridElement.height(newHeight);
dataArea.height(newHeight - diff);
}
$(function () { resizeGrid();});