hi rob
3 bedrooms house with 2 kids - its a lot to pack for self storage.
with all do respect I think you will cause lots of damage to your belonging if you don't know how to pack properly. my suggestion is to select moving companies that can store yopu house in storage boxes, large ones. there is 2 options that movers can select
Some movers can bring flatbed truck with the storage boxes on them and load you house direct to them and some will take your house on the truck and load it in their warehouse. of course that the first option is better.
i advise you in your case not to take by yourself to self storage.
please use out free estimate form for storage to compare prices
self storage