Use rooms as your starting point
Start at the entrance and work through your home in a repeatable order. Add a room heading before listing its contents. You do not need a perfect catalogue on the first pass: capture the large pieces, then cupboards and smaller belongings. Give shared items one home in the list so they are not counted twice.
Count what you know
Write down quantities for furniture and packed boxes. If boxes are still an estimate, label them as such. “Eight packed boxes and more kitchen packing to finish” is more useful than an apparently exact total that will change. Keep items you might sell on the list until the sale is settled.
Check places outside the main rooms
Go back for the loft, cellar, shed, garage, balcony and garden. Record outdoor furniture, tools and stored belongings that will travel. Tell the mover about anything that needs special handling and ask what it can accept; do not assume every item can go in the removal vehicle.
Make exceptions easy to find
Flag the piano, unusually heavy cabinet, delicate object or piece that may not fit through a doorway. Take relevant measurements without attempting a risky lift or dismantling job. Ask your mover how it wants these items assessed. Keep personal paperwork and valuables you intend to carry yourself on a separate checklist.
Keep one current version
Date your review and update the inventory when something is added or removed. Tell the company about changes after quoting, especially extra furniture or a changed box count. When you share a saved Move Pack version, check it contains the information you intend to send. An earlier shared copy should not be assumed to update with every draft edit.
Build your Move Pack to keep your survey together, save your progress and share a reviewed version with a removal company you choose.