Plan your basement
down to the dollar.
One short walkthrough. Real numbers from every trade — flooring, framing, insulation, egress, electrical, plumbing, and HVAC — adjusted for your region and finish level. No email, no contractor call. Just an honest estimate.
How it works
Every trade, covered
Project Overview
Start with your basement’s footprint. These choices drive every other calculator.
Flooring
Material and installation across your basement. Numbers already include a 10% waste factor and your region adjustment.
Framing & Drywall
Stud walls, ceiling drywall, and labor. Exterior walls are auto-calculated from your perimeter — just tell us about the interior.
Insulation
Wall and ceiling insulation. Michigan sits in climate zone 5 (zone 6 up north), so you want R-15 to R-21 on walls and R-30+ at the rim joist.
Egress Window
If you want a basement bedroom in Michigan, the residential code is non-negotiable: 5.7 sq ft of open area, at least 24″ tall and 20″ wide, with a sill no higher than 44″ off the floor.
Electrical
Rough-in wiring, outlets, lighting, and an optional panel upgrade. Michigan requires a licensed electrician and a permit for any new circuit — budget for both.
Plumbing
Bathrooms, rough-ins, and ejector pumps. SE Michigan’s clay soils and older sewer depths mean ejector pumps come up a lot here.
HVAC
Climate control for your basement. In SE Michigan, plan for ~30–35 BTU per sq ft on the heating side.
