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Free basement planning tools

Calculators that answer the sizing and budget questions before you call a contractor: how big the room has to be, how far the seats go, what the finish will cost.

Finished basement game room with an 8 foot pool table and full cue clearance on every side

Game Room Size Calculator

Pick your game tables and cue length and get the minimum room size for each, plus a combined room for the set. Real clearance numbers, no signup.

Finished basement home theater with two tiered rows of leather recliners facing a 120 inch screen

Home Theater Room Calculator

Free calculator for basement home theater plans: screen size to seating distance (THX and SMPTE), row spacing, riser height, and the minimum room length, width and ceiling.

Basement mid-renovation with new stud framing and drywall going up over concrete walls

Basement Finishing Cost Calculator

Free basement finishing cost calculator: square footage, finish tier and add-ons like a bathroom, wet bar or home theater. 2026 US prices, line by line.

See your basement finished, before you build

Snap one photo, pick a room type and a style, and get a photorealistic render that keeps your basement's real layout. Free to try on iPhone.