3D Model Requirements for Amazon, Wayfair and Shopify AR

Amazon, Wayfair and Shopify all accept 3D furniture models, but only one of them publishes a full specification. Amazon caps assets at 200,000 triangles in glTF or GLB with 2K to 4K PBR textures. Shopify accepts GLB and USDZ up to 500 MB. Wayfair keeps its supplier standard behind its partner portal.

The table below is the part most furniture brands are missing: a single view of what each platform actually asks for, and where the public record simply stops. Everything marked not published below is not an omission on our side. Those platforms do not release the number.

Amazon 3D model requirements for furniture listings

Amazon publishes the most detailed public 3D specification of the three platforms, and it is strict. An asset that fails any of the geometry or texture rules below is delayed or rejected at quality assurance, not silently downgraded.

Geometry rules

• The model is built at real-world scale, so its dimensions match the assembled product.
• The asset must not exceed 200,000 triangles.
• Mesh integrity is verified: no invalid triangles, edges, vertices, faces or flipped normals.
• The model must contain no modifiers, animation key frames, cameras or lights.
• The size and shape of every part is proportional in relation to the other parts.

Texture and material rules

• Textures are supplied as .PNG or .JPG. glTF files with image resources embedded directly in the JSON are not accepted.
• Texture resolution must be at least 2K (2,048 × 2,048) and no larger than 4K (4,096 × 4,096), square and power of two on all sides.
• One texture per channel. Double-sided textures are not supported.
• All materials are PBR metal-roughness compliant. BaseColor in RGB, Metallic in greyscale and Roughness in greyscale are required; Normal, Opacity, Height, Thickness and Occlusion are optional.
• UVs sit within one texture atlas, in the 0–1 coordinate space, with UV space maximised.
• Transparency belongs in the alpha channel of the BaseColor map — but glass, thick plastic and acrylic must use the KHR_materials_transmission glTF extension instead.

Amazon supports a fixed list of glTF extensions, including KHR_materials_transmission, KHR_materials_clearcoat, KHR_materials_ior, KHR_materials_volume, KHR_draco_mesh_compression and KHR_interactivity. Extensions outside that list are not currently supported, which is a common failure mode when a studio exports from a renderer with its own material extensions enabled.

One rule catches lifestyle-minded brands off guard: 3D assets may not include any imagery of humans. A model baked with a person in the scene, or a texture containing a figure, will not pass.

Wayfair 3D model specs: what is public and what sits behind the supplier portal

Wayfair does not publish a public 3D asset specification. Its modelling standards are distributed to suppliers through the Wayfair supplier portal and Wayfair 3D University, the curriculum Wayfair launched in 2018 as a set of 3D-modelling standards for home furnishings suppliers. If you are quoting a spec sheet for Wayfair from a blog post, it was not sourced from Wayfair.

What is verifiable from Wayfair’s own public engineering material is still useful, because it tells you the shape of the asset Wayfair keeps in production:

• Wayfair’s Realtime 3D Model API serves what it calls production grade models stored as realtime 3D assets — meaning optimised, game-engine-class geometry, not archviz-weight meshes.
• Each model in that API is returned as a .glb file, with a zipped .obj alongside it.
• Every record carries a dimensions_inches object with x, y and z values — Wayfair’s dimensional truth is stated in inches.
• Wayfair engineering describes a model as two parts, geometry and materials, and has published work on machine learning applied to its own 3D modelling pipeline.
• Roughly 1,000 Wayfair models were released to SketchUp’s 3D Warehouse in 2017 for designers — a separate, download-facing library, not the supplier submission path.

The practical consequence for a supplier is simple: build to a real-time budget, not a rendering budget, and be ready to state dimensions in inches even though your source file is almost certainly in millimetres or metres.

Shopify AR model requirements: GLB, USDZ and the 15 MB optimisation line

Shopify is the most permissive of the three and the most automated. A 3D model on a Shopify product page must be a GLB or USDZ file of up to 500 MB, and Shopify handles the cross-platform work for you.

That 15 MB line is the number to design around. Above it, Shopify decides how your model is compressed. Below it, your own decisions about topology and texture size survive into what the customer sees. For furniture, staying under 15 MB is achievable on most single-SKU pieces if texture sets are shared and 4K maps are reserved for the surfaces a shopper will actually zoom into.

A store also needs a theme that supports 3D models and videos, or a theme modified to render them. Uploading a compliant GLB to a theme that cannot display it produces a silent failure that looks like a broken asset.

Polygon budget and texture rules that decide whether a furniture asset passes

Furniture is the product category most likely to blow a triangle budget, because the details that sell it are geometric: button tufting, piping, turned legs, cane webbing, woven rattan, quilted panels. Modelled honestly, a single tufted headboard can exceed 200,000 triangles on its own.

The way through is the standard real-time pipeline, and it is the reason a marketplace asset is a different deliverable from a hero render:

1. Model the piece at full detail as a high-poly master.
2. Retopologise to a clean, quad-based low-poly mesh that holds the silhouette.
3. Bake the high-poly detail into a normal map so tufting, stitching and wood grain read as surface, not geometry.
4. Pack UVs into a single 0–1 atlas per material, maximising the space used.
5. Export at 4K where the shopper will zoom, 2K where they will not, and never below Amazon’s 2K floor.

Silhouette is where the budget should go. A shopper rotating a chair in a product viewer sees the outline against the background before anything else — a faceted seat edge or a polygonal chair leg reads as cheap instantly, while a slightly soft fabric weave does not.

In our studio, the assets that come back from marketplace review are almost never rejected for looking wrong. They come back for units, pivots, orientation and texture dimensions — the parts nobody proofs visually because they do not show up in a render. A model that passes an internal art review can still fail an automated technical check, and that is the check the platform runs first.

Real-world scale: why furniture models fail on units before they fail on looks

Scale is the single most common technical failure in marketplace 3D, and it is a unit problem, not a modelling problem. The glTF specification treats one unit as one metre. Furniture data, especially in the North American market, arrives in inches.

Take a real Wayfair record: an accent chair returned by Wayfair’s 3D API carries dimensions of 34.29 × 27.86 × 32.46 inches. Modelled in a scene set to inches and exported to glTF without a unit conversion, that chair arrives in a customer’s living room as a 34-metre object. In an AR viewer it does not look slightly large; it fills the street outside the window.

Amazon states the requirement plainly: model dimensions must match assembled product dimensions, and inaccurate dimensions may cause delays in asset publication. Alignment rules follow the same logic:

• The ‘up’ world axis is positive Y, and the model front must face positive Z.
• Floor and tabletop pieces — which covers most furniture — rest on the Y=0 plane with all geometry extending into positive Y.
• Those pieces are centred at the base of the bottom surface in both X and Z, with the pivot point at 0,0,0.
• Wall-mounted pieces have their backside aligned to the XY plane at Z=0, centred in X and Y, pivot at 0,0,0 on the back surface.
• Ceiling-mounted pieces hang from the base of the top surface, sitting at or below Y=0, with geometry extending into negative Y.

Get the pivot wrong and the AR placement anchors from the middle of the sofa rather than its feet, so the piece sinks into the floor or hovers above it. That is a five-second fix in the source file and a rejected submission if it ships.

What a marketplace-ready furniture asset package contains

A furniture 3D asset is a package, not a file. Amazon’s own guidance requires glTF exports to ship as separate parts, and the export they illustrate contains the asset, its binary buffer and one texture file per channel.

• The model itself: a single .glb, or a .glTF with its .bin buffer alongside.
• A texture set with one map per channel — base colour, metallic-roughness, normal, and any transmission or occlusion maps the material needs.
• A dimension sheet stating assembled dimensions in the unit the platform expects, matched to what the listing copy claims.
• A validator report. Amazon requires the Khronos glTF-Validator be used to confirm files meet technical requirements before submission.
• Variant exports if the SKU ships in multiple finishes — the same geometry with swapped texture sets, not a re-model per colourway.

The variant point is where the economics of a furniture catalogue live. A modular sofa sold in twelve fabrics is one geometry and twelve texture sets. Treating it as twelve models is the difference between a catalogue that can be maintained and one that is abandoned after the first season.

One master asset, three exports: building for all three platforms at once

Because the three specifications overlap rather than conflict, a single production standard satisfies all of them. Build to the strictest constraint on each axis and every platform is covered.

That single standard is also what makes marketplace assets and marketing imagery share a pipeline. The high-poly master built for furniture 3D rendering is the same geometry that gets retopologised and baked down into the marketplace asset — one modelling investment, two very different deliverables.

Looking to download Wayfair or IKEA furniture models instead?

This page is written for the supplier side: you own the product and need an asset a marketplace will accept. If you arrived looking to download existing retailer models for a design project, that is a different lane and a different set of sources — SketchUp’s 3D Warehouse hosts the Wayfair library released in 2017, and stock marketplaces sell furniture models under their own licences.

Two things worth knowing before you use either as a listing asset. Those libraries are licensed for visualisation, not for submission as your own product data. And they are not built to the specifications above — a SketchUp-era design model will typically fail on triangle count, texture layout and pivot placement even when it looks correct.