Rental property sale inclusive of property improvement assets

I entered a sale of a rental property of went to the sale of property/depreciation on the rent and royalty summary for the home that was sold.  I have been researching and understand that you have to sell each individual asset in this process.  So I then allocated some of the home purchase price to the furniture asset and to the bathroom asset, etc.  All for market value prices.  But then turbo tax is taking the net gain on those assets and adding that to Schedule 1 as taxable income.  It's only taking the one asset for the actual house value and recording that as a capital gain.  Any idea where I am going wrong?