Start with your actual shortlist.
The starter rows are a blank worksheet. Zero means no quote has been entered. Add furniture, lighting, rugs, cable management, or whatever your project needs.
Build the workspace.
Keep the perspective.
Turn your furniture shortlist into a complete office budget. Add quantities, prices, delivery, assembly, and a contingency that you control.
The rest of the picture.
Tax is applied to furniture only. Contingency is applied after tax, delivery, and assembly. Adjust these assumptions to your quote. Values save locally in this browser.
Starter items have zero prices so you can enter actual quotes. They are not free products or market-price estimates. All amounts use USD.
A considered 
way to work.
A useful tool makes your choices clearer. Start with the details you know, explore the alternatives, and keep the parts worth taking further.
See where the total comes from.
Furniture subtotal is quantity times unit price. Your entered tax percentage applies to that subtotal. Delivery and assembly are added next, then contingency applies to the combined amount.
Take the plan with you.
The CSV includes line items and the full cost breakdown. Values save in this browser. Verify tax and delivery treatment against your seller invoice; this is an estimate worksheet, not a tax calculator.