CANTI-001 — solid oak table with mahogany panels and SMILE recycled plastic inserts, landscape view

Sustainable Furniture · Honours Project · 2022

CANTI
001

Solid oak, mahogany, and SMILE recycled plastic — built to last, designed to be unmade. A luxury table with a lifecycle that doesn't end at landfill.

Type

Self-Directed Honours Project

Materials

Solid Oak · Mahogany · SMILE Recycled Plastic

Finish

Indian Ink (8 layers) · Natural Beeswax (3 layers)

Exhibited

Gray's Degree Show · New Designers London 2022

CANTI-001 luxury table — solid oak frame with SMILE recycled plastic panels, Gray's Degree Show 2022

The self-directed brief was to design and build a luxury furniture prototype suitable for sustainable batch production. The constraint that shaped everything: recycled plastic had to be central to the material language, not a footnote. And it had to sit inside a cradle-to-cradle framework — meaning the end of the product's life was part of the design from the start.

The working assumption most furniture designers operate under is that recycled plastic is a compromise material — something you use when you can't use something better. The brief set out to disprove that. If the design was right, the plastic wouldn't read as a concession. It would read as a deliberate, considered material choice, elevated by the company it was kept in.

One table. One prototype. As a proof of concept for a business model that could work at scale.

Problem

Recycled plastic has a
perception problem

Plastic recycling across the furniture industry is underutilised not because of a technical problem, but a perception one. Consumers associate recycled plastic with low quality, impermanence, and compromise. Getting them to pay premium prices for a product that contains it requires the design to do significant persuasive work — material pairing, surface quality, and finish all have to argue for the plastic's presence rather than apologise for it.

Insight

Pairing uplifts
both materials

The insight from research was that pairing recycled plastic with established luxury materials — solid oak, mahogany — changes how the plastic is read. The wood provides the quality reference point. The plastic becomes a deliberate counterpoint rather than a default. The contrast does the work: light against dark, synthetic against natural, the familiar warmth of hardwood against the graphic quality of compressed, multi-coloured recycled material. Each one makes the other more interesting.

Design Intent

Built to last.
Designed to be unmade.

The table isn't just sustainable in its materials — it's sustainable in its logic. The mahogany panel frames and plastic inserts are removable. At the end of the product's lifecycle, those components are returned to the maker, reworked into wall art, and the panels replaced. The oak frame continues. Nothing goes to landfill. That return loop isn't a sustainability footnote — it's the business model. The table is the first transaction. The lifecycle is the ongoing relationship.

Outcome

Degree show floor.
New Designers, London.

One full-scale prototype, shown at Gray's School of Art Degree Show in 2022. Selected as one of two RGU projects for New Designers Week Two, London — the largest graduate design event in the UK. The piece held up in both environments: the intimacy of a school show and the noise of an industry event. The plastic didn't need defending. People picked it up, turned it over, asked where to buy it. That was the answer to the brief.

CANTI-001 at Gray's School of Art Degree Show 2022 Gray's Degree Show — 2022
CANTI-001 table detail — recycled plastic panels in mahogany frame Panel detail — SMILE Plastic in mahogany
CANTI-001 at New Designers London 2022 New Designers — London 2022

8

Layers of Indian ink — hand applied and sanded

16hr

Sanding — across the full build

2400

Grit — max wet sanding grade on plastic panels

100+

Panel pattern ideas in Rhino / KeyShot

Three materials. Each one chosen because it earns its place — functionally, aesthetically, and within the cradle-to-cradle logic of the piece. None of them incidental.

Primary Structure

Solid Oak

The frame. Upcycled from an existing table — the starting point rather than new stock. Durable, long-lasting, and familiar enough to consumers as a luxury material that it establishes the quality register of the piece immediately. Finished with Indian ink and natural beeswax — no synthetic sealants, fully C2C compatible.

Lifecycle: Frame continues indefinitely through panel replacement cycles

Panel Frame

Mahogany

Cut from a single plank — mitre saw for lengths, router for the grooves that house the plastic inserts. The dark wood frames the panels and creates the visual contrast that makes the plastic legible as a considered choice rather than an accident. Hardwood. Durable. Returned at end of lifecycle and reworked into wall art.

Lifecycle: Returned and remade into wall art on replacement

Panel Surface

SMILE Recycled Plastic

A4 sheets sourced from SMILE Plastics after the custom injection mould proved incompatible with Origin's machine. Wet-sanded to 2400 grit, buffed and polished on a buffing wheel. The surface quality achieved through that process is the argument: it reads as premium because it is, once you've put the work in. Multi-colour compressed plastic, graphic and warm in the right light.

Lifecycle: Returned and remade into wall art on replacement

SMILE recycled plastic panel — polished and buffed surface detail SMILE Plastic — buffed and polished to 2400 grit
Mahogany panel frame with plastic insert — joinery detail Mahogany frame — router-cut grooves housing the plastic
The plastic didn't need defending. People picked it up, turned it over, and asked where to buy it. — CANTI-001, New Designers London, 2022
01

Research & Market Mapping

Extensive early research covered target markets, material perception, competitor products, and manufacturing processes. The key finding was consistent: recycled plastic has never been positioned as a luxury material in furniture. That gap was the brief. Secondary finding: post-pandemic, people were investing more in their home environments and willing to pay for pieces that meant something. That's the market CANTI sits in.

02

Lo-Fi Prototypes — Foam & Card

Before touching wood, the form was worked through in foamboard and card — iterating proportions, leg geometry, and overall stance quickly and cheaply. The C-form leg emerged from this stage: a cantilevered profile that created the sense of visual lightness the brief needed. Forms that didn't work were ruled out here rather than in oak.

03
Ruled out

Biscuit Joinery — Tested & Abandoned

The first approach to the leg structure used biscuit joins on the C-form profile. It failed on structural strength — the join had too little shear resistance for a cantilevered load. Reinforcing it would have spiralled production costs and, crucially, made disassembly at end of lifecycle much harder. Both problems pointed the same direction: ruled out early, which is why you test.

04

Rhino + KeyShot — 100+ Panel Ideations

Panel layout — the arrangement of plastic within the mahogany frames — required extensive visual exploration. Over 100 variations were generated in Rhino and rendered in KeyShot: different cut patterns, grid arrangements, material proportions, and colour combinations from the SMILE plastic range. Most were discarded. The final configuration was the one that let the plastic's natural graphic quality read clearly without competing with the wood.

05

Colour Testing — Indian Ink + Beeswax

Seven different finish approaches were tested across the extendable panels of the oak base — oils, varnishes, water-based sealants, and natural alternatives tested across 1 to 7 coats each. Indian ink won: it produced a depth of colour equivalent to oil-based finishes while being simpler to apply and, critically, compatible with cradle-to-cradle principles. Beeswax as a top coat added protection without sealing the wood permanently. Both materials can be removed at end of life without chemical stripping.

06

Mould Engineering & Origin Collaboration

The original plan was to produce recycled plastic tiles in-house using a custom mild steel injection mould — fabricated from plasma-cut sheet steel and welded box sections, with bolt fixings to attach to Origin Plastics' machine. The mould geometry proved incompatible with their specific equipment. Rather than redesign the mould, the decision was made to source A4 SMILE Plastic sheets directly and cut panels from those. A faster path to the same outcome, with better surface consistency.

07

Panel Refinement — 2400 Grit

The plastic panels were wet-sanded through ascending grades from rough to 2400 grit, then taken to a buffing wheel and polished. That sequence is what makes the surface premium. Most people who've worked with recycled plastic have only seen it un-refined — it looks cheap because it hasn't been finished. The buffed and polished result reads completely differently. 16 hours of sanding across the full build. The table earns its price in labour as much as material.

08

Oak Frame Build & Final Assembly

The surface panels were routed out of the oak frame to expose the structure. Oak corner supports were added to carry the weight of the removable panel assemblies. The mahogany strips — cut with a mitre saw and routed to accept the plywood backing — were inked and waxed to match the frame. Assembly confirmed the logic: the panels are genuinely removable. The lifecycle works as designed.

CANTI lo-fi foamboard prototype — C-form leg exploration Lo-fi — foamboard form testing
CANTI card model proportions Card model — proportion testing
CANTI Rhino CAD — carpentry joinery visualisation Rhino — carpentry joinery CAD
CANTI KeyShot render — panel layout ideation KeyShot — panel ideation
CANTI C-form leg — biscuit join prototype testing Biscuit joinery prototypes — tested and ruled out
Custom mild steel injection mould — fabricated for CANTI plastic tiles Custom mild steel injection mould
CANTI colour testing — Indian ink swatches on oak, 1 to 7 layers Colour testing — 7 finishes, 1–7 coats
CANTI oak frame and mahogany panels post Indian ink application Frame + panels post-inking
CANTI oak frame — first beeswax layers applied Indian ink — first 2 of 8 coats
SMILE recycled plastic samples being wet sanded and buffed Plastic polishing — wet sand to 2400 grit, buffing wheel
SMILE recycled plastic A4 sheets — sourced for final panel tiles SMILE Plastic A4 sheets — final panel material
CANTI original oak table before upcycling — with plywood panel sheet

Cradle-to-Cradle Framework

"The table is the first transaction. The lifecycle is the ongoing relationship."

The mahogany panel frames and SMILE plastic inserts are designed to be removed — not when the table breaks, but as a planned stage of its life. When a customer is ready to refresh the piece, those components are returned to the maker. The plastic and mahogany are reworked into wall art. The customer receives new panels. The oak frame continues. Nothing reaches landfill.

This is the business model, not just an environmental stance. The return creates an ongoing relationship with the customer, a secondary revenue stream for the maker, and a genuine closed loop on the materials. The table becomes a service as much as an object.

CANTI-001 side elevation — solid oak frame with cantilevered profile Side elevation — C-form oak leg
CANTI-001 full table — oak, mahogany and SMILE recycled plastic CANTI-001 — degree show installation
Brief Self-directed Honours project. Luxury furniture prototype for sustainable batch production using recycled plastic within a cradle-to-cradle framework.
Materials Solid oak (upcycled frame), mahogany (panel frames, cut from one plank), SMILE recycled plastic sheets (A4, laser cut to tile dimensions).
Finish Indian ink — 8 layers, hand-applied and sanded between coats. Natural beeswax — 3 coats. Both materials fully removable at end of lifecycle. No synthetic sealants.
Plastic Wet-sanded to 2400 grit. Buffed and polished on buffing wheel. Grouted and/or screwed into mahogany panel frames. Tested for adhesion and durability.
Joinery Biscuit joining tested and ruled out — insufficient shear strength, lifecycle incompatibility. Final: router-cut grooves in mahogany, oak corner supports, removable assembly.
Tools Rhino, KeyShot, workshop machinery (mitre saw, router, palm sander, buffing wheel), injection moulding (Origin Plastics collaboration).
Lifecycle Panel frames and plastic tiles returned at end of lifecycle, reworked into wall art. Oak frame continues through replacement cycles.
Exhibited Gray's School of Art Degree Show, Aberdeen, 2022. New Designers Week Two, London, 2022 — one of two RGU projects selected.

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