Interior designer tools: the toolbox for a whole assignment, from the first enquiry to the handover

Why does an interior designer end up with eight tools open?

Count them on your last project. Exchanges with the client go through e-mail and WhatsApp, the documents sit in a shared Google Drive. The plans come out of AutoCAD, the 3D out of SketchUp, the boards out of Pinterest and Canva, and the cost plan lives in an Excel file duplicated at every version. That makes eight tools, not counting the word processor for the site minutes or the invoicing software.

Each of them does its job well; the trouble starts at the joins. The surveyed area is retyped into the cost plan, then into the template sent to the contractors. The client approves a board on WhatsApp, agrees to a change out loud on site, and nobody knows any more which version holds. At the first disagreement, you have to rebuild the chronology from several message threads.

Almost always, a common thread is missing: one place where the project data moves from one step to the next without being copied, and where every client approval leaves a dated trace. The vendor comparison is covered separately, in our comparison of management software for interior designers; here, we reason by stage of the assignment.

Which tools for each stage of an assignment?

The phases of the CFAI mission contract (the French council of interior architects) serve as the grid: ESQ, APS and APD for design, PCG for the complete design file on which tendering is based, AMT for tendering the contractors, CET for works supervision, AOR for the handover. They are detailed in our article on the interior designer's contract. Add to them, upstream, the incoming enquiry and, throughout, running the studio.

1. Capturing and qualifying enquiries (before the assignment)

The aim is to lose no enquiry and to know where the projects that go ahead come from. When you improvise, the Instagram enquiry stays in direct messages, the form enquiry in the inbox, and the tracking spreadsheet is only up to date in quiet weeks. On the day the prospect says yes, everything they told you (property, area, budget, timeline) has to be copied into the project file. The right tool is a CRM built for interior designers; acquisition channels are compared in our guide to finding clients. In Nodal: yes, it is the tool's front door.

2. Survey, plans and 3D (ESQ, APS, APD, PCG)

You need to measure the existing space, draw the project and show the client a space they cannot read on a plan. The tools are well known: a laser distance meter, AutoCAD or an equivalent for 2D plans, SketchUp or another modeller for 3D, a rendering engine. The weak point is the dimensions: a survey retyped by hand into several files ends up diverging, and the wrong dimension reaches the joiner. Keep a single, dated reference survey and draw the quantities of your quantity take-off from it.

In Nodal: no. Nodal does not draw plans and does not model in 3D. Your design tools remain your own.

3. Mood boards and product selection (ESQ to APD)

The point is to set a direction with the client before drawing the detail, then to decide on materials, furniture and lighting. Pinterest is for collecting, Canva for composing. The flaw: the board lives outside the project. It goes out as a PDF, the client replies "love it" by message, and the direction thought to be approved reopens at the estimating stage. The method for a clear approval is in our article on interior designer mood boards.

In Nodal: yes, depending on the plan, with Nodal Studio, which creates mood boards and presentations linked to the project.

4. Presentation and client approval (at the end of each phase)

Each phase should close with a written, dated agreement: an approved concept is not reopened at the estimating stage, and an approved APD sets the scope of the tender. E-mail and WhatsApp keep messages; an approval requires an identified document and an explicit answer. An "ok for me" buried in a thread proves nothing. See our 11-step project management method, where each step moves forward on proof.

In Nodal: yes. The client approves from their portal, and every approval is time-stamped.

5. Estimating, tendering and bid analysis (APD, PCG, AMT)

Three stages: an estimate by trade package from the APD, a tender template that every contractor fills in identically during the AMT, then a comparison of the bids that stands up in front of the client. The spreadsheet handles the estimate and breaks down at the tender: each contractor replies in its own format, and the analysis is done by hand, from one PDF to the next. The specification, when there is one, lives in another file, with no link to the priced lines.

Each document has its guide: the annotated DPGF example, writing an interior designer's CCTP, the list of NF DTU standards for interior renovation and tendering to contractors. A point of vocabulary: your cost plan remains an estimate; the quotes are the contractors'. In Nodal: yes, it is the core of the tool.

6. Scheduling, site supervision and site minutes (CET)

The site calls for a schedule by trade package with its dependencies, minutes after every visit and additional works approved before they are carried out. The usual set-up: photos in WhatsApp, the schedule in a PDF dating from the kick-off, decisions in e-mail threads. The extra agreed orally resurfaces, as a negotiation, on handover day. The method is in our guide to site supervision, and the template in our site meeting minutes template.

In Nodal: partly. The schedule is built as a Gantt chart by trade package, the selected contractors are invited onto the project and additional works are approved from the client portal. The minutes remain a document you write.

7. Handover (AOR)

The handover calls for a report that lists each snag with its location, the expected remedy and its deadline, then tracking until the snags are cleared. A template, dated photos and a table are enough. The difficulties come from upstream: a trade package scope left vague or a change never written down turns the handover into a negotiation. The sections are detailed in our handover report template.

In Nodal: partly. Nodal does not draft the report for you; the project history gives you the scope of each trade package and the changes on record.

8. Contract, fees, invoicing and accounting

The CFAI mission contract (AI 1 and AI 2) names the phases retained, fees are staged by phase, invoices must be compliant. These belong to dedicated tools: the CFAI model, invoicing software, your accountant. Since September 1, 2026, every VAT-registered business in France must be able to receive electronic invoices; see our article on e-invoicing. To set the price of your assignment, refer to our guide to interior designer fees.

In Nodal: partly. Your fee proposal is approved online by the client. Nodal is not an approved platform, does not issue electronic invoices and does not keep accounts.

Which tool at which stage? The summary table

Each stage, the usual type of tool and what Nodal covers, without rounding up.

How do you choose your tools as an interior designer?

Five questions to ask any management tool, ours included:

• Is data entered only once? The prospect record should become the project, and the estimate the tender template.
• Is the client portal under your brand? The client follows their project under your logo and colours.
• Is approval traced? Every client agreement should be dated, attached to the approved document and retrievable at the end of the works.
• Can you export your data? Contacts, cost plans and documents should come out in a common format, spreadsheet or PDF.
• Have you tried it on a real project? Run a live file from enquiry to tender and count the re-typing. A demo on dummy data says nothing about your week.

So, what about Nodal?

Nodal covers the management side of this toolbox, on a single project; your design and invoicing tools stay alongside. The ecosystem, brick by brick:

• The CRM. Enquiries land in a single board (website form, e-mail, Instagram, CSV import of your contacts). The record speaks building (property, area, budget, timeline), the prospect switches to a project with no re-typing, and the activity report breaks enquiries down by source.
• The 11-step pipeline. The project only moves forward on proof, and progress never goes backwards.
• Nodal Studio, depending on the plan: collaborative mood boards and a client presentation tool, linked to the project and to the cost plan.
• The client portal. The client follows their project there and approves documents, every approval being time-stamped; your logo and colours apply depending on the plan.
• The cost plan. DPGF by trade package, a library of estimated prices in ranges, a technical specification per package, tendering to contractors package by package, bid comparison and an analysis report. The document carries the mention "an estimate, not a quote".
• The site. A Gantt schedule by trade package, selected contractors invited onto the project, each seeing only what concerns them, and additional works approved as they arise through a time-stamped agreement, line by line.
• Site minutes and handover. Nodal writes neither your minutes nor your handover report; the project history says who approved what, and when.

These bricks share the same data: the prospect record carries through to the project and the estimate, and the frozen cost plan serves as the reference works budget for the site.

Article published on September 27, 2026. The tools mentioned are cited as examples of categories; the vendor comparison is the subject of our 2026 comparison.

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