For interior designers

Design is the vision. SPEC is the lens.

The on-site estimating and specification tool built specifically for interior designers — yardage, checklists, and rule-of-thumb guides, right from your phone at the job site.

Free to download. Launching soon on iOS and Android.

SPEC app home screen showing Calculators, Checklist, and Rule of Thumb sections
Built for the site visit

Everything you'd otherwise track on a legal pad.

Four calculators built around how designers actually spec a room — no spreadsheets, no formulas to remember.

Calculator

Drapery

Panel width, length, fullness, and repeat — estimated yardage before you leave the room.

Drapery calculator screen
Calculator

Shade

Mount type, width, and returns, worked out fabric-side so nothing gets shorted at the workroom.

Shade calculator screen
Calculator

Wallpaper

Wall specs and pattern repeat translate straight into double and single roll counts.

Wallpaper calculator screen
Calculator

Upholstery

Pick the piece and size, add your options, and get a yardage estimate on the spot.

Upholstery estimator screen

Window Treatment Checklist

A running list for the site visit itself — measurements and conditions, so nothing gets missed before you're back at your desk.

Window treatment checklist screen

Rule of Thumb

Spacing guides for traffic flow, seating, and furniture layout — the numbers you'd otherwise have to remember.

Rule of thumb living room spacing guide screen
Who it's for

Built for solo and small design firms. One person or five — same tool.

  • 1 Independent designers who quote on-site and don't have a back office to check their math.
  • 2 Small studios (1–5 people) who need every team member speccing jobs the same way.
  • 3 Anyone who's ever recalculated yardage twice because the first number didn't feel right.

"The go-to resource for on-the-go designers."

Get SPEC

Free to download. No subscription required.

SPEC is available at no cost while we're in early access. Download it and start speccing your next job today.