If the company that created the metal outside porch railing is incorporated, then you do not send them either a 1099-MISC or 1099-NEC. There is no reporting requirement. If they are not incorporated, you should send them a Form 1099-NEC by January 31, 2021. The same applies to the carpet company. If they are incorporated, no requirement, otherwise, a 1099-NEC.
For rental income for the Catholic Church, you should issue 1099-MISC for any rental income.
For additional information, see https://www.irs.gov/pub/irs-pdf/i1099msc.pdf
