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Basement finishing estimator template

A planning budget at three finish levels, with the area, ceiling, bathroom, bedrooms and egress windows. Water problems and low ceilings go to an assessment.

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Try it as a customer would

Lower Level Builders (sample business) Sample result: 800 sq ft dry basement with a drywall ceiling, a half bath with drains already in the floor and one bedroom with an egress window Before tax
Basic finish $32,500 USD – $40,500 USD
Basement finished: walls, insulation, flooring, lighting, doors and trim · $22,400 Ceiling · $3,200 Half bathroom · $8,000 Bedrooms: walls, doors and closets · $2,000 Building permit and inspections · $900
Standard finish $43,500 USD – $53,500 USD
Basement finished: walls, insulation, flooring, lighting, doors and trim · $32,000 Ceiling · $3,200 Half bathroom · $10,000 Bedrooms: walls, doors and closets · $2,500 Building permit and inspections · $900
Premium finish $62,500 USD – $77,000 USD
Basement finished: walls, insulation, flooring, lighting, doors and trim · $48,000 Ceiling · $3,200 Half bathroom · $14,000 Bedrooms: walls, doors and closets · $3,500 Building permit and inspections · $900

Fictional business and sample prices. Preliminary estimate based on the answers; final pricing follows an assessment.

Questions included

  1. Does your basement ever get wet? No, it stays dry · Sometimes: damp spots, a musty smell or a little seepage · Yes, it floods or leaks “I don't know” → shows a price range
  2. Is the ceiling at least 7 feet high? Yes · No, it's lower “I don't know” → uses a stated assumption
  3. How much of the basement do you want finished? Measured in sqft “I don't know” → uses a stated assumption
  4. Which ceiling would you like? Smooth drywall · Drop ceiling (removable tiles) · Open ceiling, painted
  5. Would you like a bathroom? No bathroom Half bath (toilet and sink) Full bath (with a shower)
  6. Are there drain pipes ready for a bathroom in the floor? Yes · No “I don't know” → shows a price range
  7. Are there drain pipes ready for a bathroom in the floor? Yes · No “I don't know” → shows a price range
  8. How many bedrooms would you like? “I don't know” → uses a stated assumption
  9. Does each bedroom spot already have a large escape window? Yes · No, we need new ones “I don't know” → shows a price range

Prices you supply

  • Basement finished: walls, insulation, flooring, lighting, doors and trim Your rate per sqft
  • Ceiling Your rate per sqft
  • Half bathroom A fixed extra when it applies
  • Full bathroom A fixed extra when it applies
  • Upflush toilet system (no drains in the floor) A fixed extra when it applies
  • Bedrooms: walls, doors and closets A price for each one
  • New egress windows and window wells A price for each one
  • Building permit and inspections A fixed extra when it applies
  • Minimum job priceNo estimate shows less (sample: $15,000)
  • Assessment rule: Basement floods or leaksWater coming in has to be fixed before a basement can be finished. We'll find the cause on a visit and price the waterproofing and the finishing together.
  • Assessment rule: Low ceilingBasements under about 7 feet usually can't be finished as living space without lowering the floor or rerouting ducts. We'll look at the options on a visit.
  • Assessment rule: Damp spotsWe'll find the cause of the dampness on a visit. Any waterproofing needed before finishing is priced then.
  • Assessment rule: New drains for a full bathCutting the concrete floor to add drains for a full bathroom is priced after a visit.

How the price is worked out

Each finish level has a rate per square foot: $28, $40 or $60 in the sample, so 800 sq ft is $22,400, $32,000 or $48,000. A drywall ceiling is $4 per sq ft ($3,200). A half bath with drains already in the floor is $8,000, $10,000 or $14,000, one bedroom's walls, door and closet are $2,000, $2,500 or $3,500, and the permit and inspections are $900. So the exact figures are $36,500, $48,600 and $69,600. A finished basement depends on what's behind the walls and the final design, so the template shows each as a ±10% planning range, rounded outward to the nearest $500. That gives $32,500, $43,500 and $62,500 before tax at the low end, up to $40,500, $53,500 and $77,000.

A full bath is $14,000, $18,000 or $25,000, and a half bath without drains in the floor adds an upflush toilet ($2,500). New egress windows and wells are $4,500 per bedroom. A drop ceiling is $5 per sq ft and an open, painted ceiling $2.50. Damp spots, and a full bath without drains, are priced after a visit while the rest is still priced; flooding and ceilings under 7 feet go to an assessment. Customers who don't know the area can work it out from the basement's length and width.

What you can change

  • Rates per square foot for each finish level, and the ceiling prices.
  • Bathroom, upflush toilet, bedroom, egress window and permit prices.
  • The budget range percentage and rounding.
  • Your minimum budget.

What still needs your visit

Moisture, the final layout and what's behind the walls. The estimate says it's a planning budget and that the final price follows a site visit.

Putting it on your website

Build, test and publish your first estimator free, for as long as you like. Unlimited estimators are $35 a month in the US or $45 CAD in Canada (pricing). Add it to your website with a short embed code, or share a hosted link.

Use this template free

Used by: renovators and home builders.