No printing. No ruler. No CAD. Upload, trace, and get the number.
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CubiCasa, Matterport, builder exports — any clean digital floor plan works perfectly.
Scanned or photographed construction drawings. If it's to scale, PlanSnapper can measure it.
Drone footage or satellite imagery. Trace the roofline and use a known dimension to calibrate.
Floor plans are everywhere. Architects produce them. Builders hand them out. MLS listings include them. Aerial photos capture them from above.
But square footage almost never comes with them. Getting that number has always meant measuring it by hand, hiring someone who can, or trusting a figure someone else calculated years ago and hoping it's still right.
If you have a to-scale image, you already have everything you need. PlanSnapper does the rest.
“I use PlanSnapper every day to measure finished basements for ANSI requirements. It saves me at least 30 minutes a report.”Austin, Certified Residential Appraiser
The alternative
Measuring by hand takes 30 minutes. PlanSnapper takes 60 seconds.
One known wall length is all you need.
Screenshot it from the MLS, export it from CubiCasa or Matterport, or photograph a printed plan. Any to-scale image works.
Click two points on any wall you know the length of: a lot width, a standard room size, anything. PlanSnapper calibrates every other measurement from there.
Total GLA, perimeter, and individual wall lengths in feet and inches, ANSI-compliant. Need to exclude the garage, a porch, or an unfinished basement? Add a second polygon and it comes off the total automatically.
Any situation where you have a to-scale image and need accurate numbers fast.
The most common scenario. You have a to-scale floor plan from an architect, builder, or title company but no square footage is included. Upload it, set one known wall length, and get GLA in under a minute.
Screenshot a satellite view, drone photo, or overhead image. As long as the image is roughly to-scale, trace the footprint and use a known dimension (lot line, street width) to calibrate.
Get individual wall lengths from any floor plan without a field visit. Useful for cross-checking your field sketch or completing a report when physical access to the property isn't possible.
Before advising a client or making an offer, run the floor plan yourself. Catches honest mistakes and not-so-honest ones before they become deal-breakers or liability issues at closing.
Both tools produce highly accurate, to-scale floor plans but omit square footage, likely for liability reasons. PlanSnapper was built specifically to fill that gap and give you the ANSI-compliant number you actually need.
Need square footage to price flooring, tile, paint, or a roofing job? Upload the floor plan and get room-level dimensions without measuring every wall with a tape measure.
$29/mo · $9 day pass · Instant access after checkout.
Pricing
One floor plan or many? Get 24-hour access or go unlimited.
Billed $288/yr · 2 months free
Runs entirely in your browser · ANSI compliant · Instant access after checkout
No setup or downloads required.
Upload your floor plan, set one wall length, and get ANSI-compliant GLA in under 60 seconds. No tape measure. No field visit.
Upload your floor plan🔒 Secure checkout · 48-hour money-back · Pro subscription cancels anytime