The first thing you need for a Nerf War Birthday Party is a battle arena.  We were fortunate to have this big open space because we are currently renovating a building (more to come on that).  However, you don’t need to have a huge space to have an awesome Nerf battle.  A basement, a backyard, even your living room could work.  The only thing I would advise is to remove anything that might get broken or fall.  Even the most timid of Nerf warriors can accidentally break something. 

The next thing you need are different places to hide or camp (not really hip to the lingo, but you know what I mean).  Since we were using a big open space with nothing in it, we needed to create places to duck behind, sneak through, etc.  However, if you are creating a battle arena in a furnished room you could rearrange the furniture, throw some blankets over a few chairs, bada bing bada boom you got yourself a battle arena!! 

We went with large cardboard boxes to create our stations.  My husband figured out this genius way of attaching them.  He used a screwdriver to create a hole in the cardboard then threaded a ziptie through the hole to attach.  This zip tie method worked great! Everything was incredibly sturdy.