Verify measurements
from any floor plan or blueprint.
Set scale from one known dimension, trace the perimeter, and get accurate measurements: without CAD, without printing, and without a site visit.
48-hour money-back guarantee · Instant access · Pro subscription cancels anytime
When to use it
The number is there. You just need to verify it.
Verify a builder's stated square footage
Builder says the unit is 1,850 sqft. Upload the floor plan, trace it, set scale from any labeled dimension. Know in minutes whether the number is right.
Sanity-check architectural drawings
Before you rely on a plan for pricing, permitting, or purchasing decisions: verify the size yourself. Takes 2 minutes and you know the number is yours.
Disputed size
Buyer and seller disagree on size. MLS says one thing, the plan says another. Upload the plan, measure it yourself, have a defensible number backed by the actual drawing.
Pre-purchase due diligence
Before you commit to a property, run the floor plan yourself. Takes 2 minutes and catches discrepancies between listed and actual size before money changes hands.
Check scan-to-plan exports
CubiCasa, Matterport, and iGUIDE produce accurate to-scale plans but intentionally omit the area. Upload the export, trace the exterior, and get the number the scan left out.
Detached structures and additions
Main house is clear but the garage, ADU, or addition is undocumented. Add a separate polygon and get that area measured from the same plan: no separate tool needed.
How it works
Three steps from plan to verified number
Upload the floor plan or blueprint
Drop in an architectural PDF, builder drawing, scan-to-plan export, or a photo of a printed plan. Any to-scale image works. No special file format required.
Set scale from one known dimension
Click two points on any labeled wall or dimension and enter the real-world measurement. PlanSnapper calibrates every other measurement in the drawing from that one reference.
Trace and get the verified area
Click around the perimeter to trace the space you want to measure. Square footage appears instantly. Add a second polygon for detached structures or separate areas.
Works with floor plans and blueprints from
Start measuring today: day passes from $9.
Upload a floor plan →What users say
Built by an appraiser. Used by professionals.
I built PlanSnapper because I was tired of printing floor plans and measuring them with a ruler. Now I verify GLA from my desk in minutes. It’s completely changed my appraisal workflow.
Austin F.
Real Estate Appraiser, 14 years
From raw floor plan to measured GLA
Upload any floor plan and get every perimeter measurement with total size.
Pricing
Simple pricing.
One floor plan or many? Get 24-hour access or go unlimited.
- ✓ Up to 5 floor plans
- ✓ Full access for 24 hours
- ✓ Great for a single job
Billed $288/yr · 2 months free
- ✓ Unlimited floor plans
- ✓ Save and resume anytime
- ✓ Includes all current and future tools
- ✓ Best for ongoing work
No setup or downloads required · Instant access after checkout
FAQ
Common questions
Don't take anyone's word for it.
Upload the plan, set scale, trace once. Verified in minutes.
48-hour money-back guarantee · Instant access · Pro subscription cancels anytime