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What Is an Interior Design Specification? Complete Guide

A specification is a detailed list of all materials, furniture, and equipment for a design project. We break down the structure, purpose, and best practices for managing specifications.

Dora Team

What is a specification

A specification (also known as an FF&E schedule) is a structured document that contains a complete list of all products, materials, and equipment required to execute an interior design project. It is the primary working document shared between the designer, client, and suppliers.

Each item in a specification typically includes: the product name, manufacturer, SKU, dimensions, color and finish, quantity, unit price, and total cost. A well-organized specification saves dozens of hours during procurement and minimizes ordering errors.

Why you need a specification

Without a specification, a design project exists only as a visual concept. A specification transforms mood boards and 3D renderings into a concrete action plan:

  • Accurate budget. The client sees the cost of every item and the total project sum before procurement begins.
  • Procurement control. The designer or project manager has a clear list of what to order, from whom, and at what price.
  • Client approval. The client approves each item, reducing the risk of misunderstandings after installation.
  • Project documentation. The specification becomes an archival document useful for reorders or maintenance.

Structure of a specification

A typical specification is organized by rooms or project zones. Within each room, products are grouped by category:

Main categories

  • Furniture — sofas, tables, chairs, beds, storage units
  • Lighting — chandeliers, wall sconces, floor lamps, recessed lighting
  • Textiles — curtains, rugs, cushions, bed linen
  • Finishes — paint, wallpaper, tiles, flooring
  • Decor — artwork, vases, candles, mirrors
  • Plumbing — faucets, sinks, bathtubs, toilets
  • Appliances — kitchen appliances, HVAC units

Required fields

Each specification item should include:

  1. Product name and manufacturer/brand
  2. SKU or link to the supplier's website
  3. Dimensions (length, width, height)
  4. Color and finish (e.g., "natural oak, matte lacquer")
  5. Quantity
  6. Unit price and currency
  7. Product image

How to create a specification

Step 1: Collect all products

After the design concept is approved, go through each room and document every product needed for execution. Use your mood boards and 3D visualizations as a checklist.

Step 2: Find suppliers and prices

For each product, identify a specific supplier, note the current price and availability. Save the product link — you will need it when placing orders.

Step 3: Organize by room

Structure your specification by project rooms. Within each room, group items by category. This makes navigation easier for both you and the client.

Step 4: Get client approval

Send the specification to the client for review and approval. Mark which items are approved and which need replacement or discussion.

Tools for managing specifications

Designers use various tools to create specifications:

  • Excel / Google Sheets — the most common choice, especially early in a career. Flexible but requires manual work and lacks specialized features.
  • Specialized platforms (Dora, Programa, Studio Designer) — automate routine tasks: parsing products from URLs, structured templates, PDF export.
  • Design software with built-in specifications (Houzz Pro) — for those who need a full cycle from visualization to procurement.

The right tool depends on the size of your practice and budget. For freelancers and small studios, a specialized tool like Dora can save 5–10 hours per project compared to spreadsheets.

Common mistakes

  1. No images. A specification without product photos is just a list of SKUs. The client cannot evaluate the selection.
  2. Outdated prices. Prices change. Verify them before sending the specification to the client.
  3. Missing supplier links. Without a link to the specific product, ordering can be delayed.
  4. No version control. Keep a history of changes so you know what was approved and when.

Conclusion

A specification is not just a shopping list. It is a professional document that determines the quality of a design project's execution. Invest time in proper specification management — it pays off in budget accuracy, procurement speed, and client satisfaction.