The interior design guide
Open Rayon

The interior design guide. A definitive knowledge base for interior designers.

From first principles to the finishing touches: shell, surfaces, space planning, furniture, electrics, plumbing and joinery, in the order a project runs.

Get startedKnowledge base

The Lexicon.

Every term, in plain words.

From hue and light reflectance to bonding and kick space, every term the guide uses has a short definition, what to know in practice and the pages that use it.

Open the Lexicon

Use the guide in your AI assistant.

Connect Claude or ChatGPT.

The guide has an MCP server, so your assistant can search it, read its pages and cite them while it answers you. It is free, read-only, and needs no account or key.

Connect to Claude
Open docs
All sections

The interior design guide.

A definitive knowledge base for interior designers.

Eleven chapters take a home from first principles to the moment you show it to the client. Start with Foundations and read in order, or search for a topic, a term or a rule of thumb.

Chapters.

Eleven steps, from principles to presentation.

Keep reading.

Where to go next.

Sections.

Keep reading.

Where to go next.

Window schedule.

What it means in interior design.

A window schedule lists every window with its reference (W01, W02…), opening size, sill and head heights, glazing, opening type and frame finish. It sits beside the elevations rather than replacing them.

In practice

Check sill heights against furniture before the schedule is fixed: a desk, a radiator or a kitchen worktop under a window all need the sill to clear them. Note which panes open and how, so curtains and blinds can be specified to suit.

Where the guide uses it

  • Defined here, in the Lexicon.

Related terms.

More from Openings.

Back to the Lexicon

Units