# SPEC: Interior Design Tool

> On-Site Design Estimating Tool

Canonical page: [https://chrome-stats.com/d/id6794911934](https://chrome-stats.com/d/id6794911934)

## Overview

- **ID:** `id6794911934`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** EJ Collective
- **Category:** Business
- **Version:** 1.0
- **Last updated:** 2026-08-13
- **First published:** 2026-08-13
- **Size:** 36 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/spec-interior-design-tool/id6794911934)
- **Website:** [https://specdesign.app](https://specdesign.app/)
- **Privacy policy:** [https://specdesign.app/privacy](https://specdesign.app/privacy)

## Description

Free to download. SPEC gives interior designers on-site calculators for drapery, shades, wallpaper, and upholstery — right from your phone.

SPEC is the go-to resource for on-the-go interior designers.

Designed specifically for residential and commercial interior design professionals, SPEC puts essential estimating tools, checklists, and industry resources at your fingertips so you can work faster, make informed decisions, and stay productive whether you're in the office, at a client meeting, on a job site, or shopping a showroom.

No more digging through notes, spreadsheets, or outdated reference sheets. SPEC helps simplify common design calculations and provides practical resources that designers use every day.

FEATURES

• Drapery Yardage Estimator
Estimate fabric requirements for custom drapery panels using project-specific measurements and fabrication details.

• Shade Yardage Estimator
Quickly estimate fabric yardage for Roman shades and soft window treatments.

• Wallpaper Calculator
Calculate estimated wallpaper quantities based on wall dimensions, roll size, and pattern repeat information.

• Upholstery Estimator
Generate upholstery yardage estimates based on furniture type, size, and selected fabrication options.

• Site Visit Checklist
Stay organized during client consultations, site visits, and project walkthroughs with a practical designer-focused checklist.

• Rules of Thumb Reference Guide
Access common interior design measurements, spacing recommendations, and industry reference information while working in the field.

• Email Summary
Create and share project estimate summaries directly from the app for easy record-keeping and collaboration.

DESIGNED FOR INTERIOR DESIGN PROFESSIONALS

SPEC was created by an experienced interior design professional who understands the realities of managing projects, gathering measurements, coordinating vendors, and making decisions on the go. Every tool is built to support real-world design workflows and help reduce the time spent on repetitive calculations.

IMPORTANT DISCLAIMER

All calculations and estimates provided by SPEC are intended for planning and estimating purposes only. Actual material requirements may vary based on workroom specifications, manufacturer requirements, pattern placement, installation methods, product construction, and project conditions. Users are responsible for verifying all measurements, calculations, yardage, and quantities before ordering. See Terms & Conditions: https://specdesign.app/terms

Whether you're a solo designer, design assistant, project manager, or established design firm, SPEC provides practical tools to help you work more efficiently and confidently throughout every stage of a project.

## Rankings

- #1,313,045 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6794911934)