What fence height options do you typically have and which height is best for your iron or aluminum fence project? 3ft tall. Good for decorative barriers around small yards, patios and gardens. Doesn’t restrict view, but easy to get over. 4ft tall. By far the most popular height we sell. Low enough to see over, but tall enough to keep most kids and pets in. 5ft tall. Still low enough to just see over when walking around the yard, but its going to give a more enclosed feel. Tougher to climb over than the shorter heights. 6ft tall. Now you are looking through the fence rather than over it unless you are on the tall side. You usually see taller fence like this when you want to send more of that ‘stay out’ or ‘security perimeter’ look. Any shorter than 3ft tall and you are looking at custom work from any fence maker. Any taller than 6ft tall and that is also either a custom build or specialized industrial fence that isn’t as decorative and costs a lot more than regular height fencing.