A buyer looking at a wood-look porcelain quote sees “rectified” on one line item and nothing on another, and the quantity, spacer width, and installed joint line all depend on resolving that gap before the order is placed. The difference between rectified and pressed edges is not cosmetic preference; it governs whether a narrow joint is achievable at all and whether the plank layout the designer approved on a sample board will read the same way across a full floor.
Define Rectified and Pressed for the Quoted SKU
Rectification refers to a mechanical finishing step applied to a tile’s edge after firing, bringing each piece to a precise, consistent size with a square, sharp edge. A pressed edge is the tile’s as-fired edge, which carries the natural variation that occurs during the ceramic or porcelain firing process and typically has a softer, rounded profile. This distinction matters because the edge condition determines how tightly planks can be set next to one another and how forgiving the installation is of minor size variation between pieces.
Where a collection name includes a design cue suggesting a refined or modern look, that naming choice says nothing about whether the specific SKU within that collection has been rectified. Collections frequently include both rectified and pressed options across different sizes or finishes, and a photograph showing a tight joint does not confirm which edge type produced it. The edge type is a declared attribute of the exact SKU and production batch being quoted, not a property of the product line as a whole.
The practical consequence for a buyer is that the edge type changes what joint width is realistic. A rectified edge supports a narrower joint because the tile’s dimensional consistency reduces the risk that adjacent pieces will show an uneven reveal along the length of the joint. A pressed edge generally requires a wider joint to absorb the natural size variation between pieces, because a narrow joint would otherwise expose lippage or inconsistent spacing as a visual defect rather than a design feature.
This also affects how a wood-look tile reads as a plank. Wood-look designs depend on repeated linear joints running across a floor or wall to simulate board-and-plank flooring, and the edge type interacts directly with how clean or soft those joint lines appear. A buyer evaluating the Azulejos con aspecto de madera range for a project should treat the edge declaration as a starting input to the layout conversation, not a settled fact inferred from the collection’s marketing presentation or finish name. Ask the supplier to state, in writing, whether the exact SKU and batch being quoted is rectified or pressed, independent of what the collection name or catalog image implies.
Compare Declared Dimensions and Edge Evidence
| Evidence to check | What it supports | Límite de decisión |
|---|---|---|
| Exact SKU edge declaration | Identifies whether the quoted SKU is declared rectified or pressed | Do not infer edge type from photographs or a collection name |
| Dimensional evidence for the exact SKU | Supports review of the quoted tile’s declared dimensions | Must come from the supplier for the quoted SKU rather than from a general standard summary |
| ISO 13006:2018 summary | Provides classification, characteristics and marking scope for ceramic tiles | Does not prove a VITAGRES SKU claim or a measured property |
| ISO 10545-2:2018 summary | Identifies methods for determining dimensions and surface quality | Does not establish a supplier batch tolerance, rectification claim or installation acceptance value by itself |
Once the edge type is declared, the next question is what size the tile actually is, and how that declared size has been verified. Declared dimensions describe the nominal size the supplier states for the SKU, but actual produced tiles vary slightly from that nominal figure within a tolerance range, and the tolerance range itself differs depending on whether the tile is rectified or pressed. A rectified tile’s mechanical edge-finishing step narrows this tolerance considerably compared to a pressed tile, which is the mechanism that makes a narrow joint achievable in the first place.
The relevant classification and measurement framework for these claims is defined in ceramic tile standards. ISO 13006:2018 sets out the classification, characteristics, and marking scope for ceramic tiles generally, while Azulejos cerámicos – Parte 2: Ensayos de solidez del color frente a la luz defines the testing method used to determine dimensional characteristics and surface quality. Both documents describe scope and method; neither one, by itself, establishes what the quoted SKU’s actual batch tolerance is or confirms a rectification claim for a specific product. A buyer citing these standards in a specification should understand them as the measurement framework a supplier’s dimensional evidence should reference, not as a substitute for that evidence.
This is where the distinction between a visual sample and dimensional evidence becomes important. A sample board or reference sample can confirm color, texture, and surface finish, but it does not on its own confirm the dimensional tolerance of the production batch that will actually ship for the project. The relationship between sample approval and production confirmation is addressed in more depth in the discussion of what a reference sample, a production sample, and a site mock-up can each support, because each of those evaluation stages answers a different question about the product.
Where a project specification requires a narrow joint width, the buyer needs dimensional evidence specific to the quoted SKU and batch, not a general assurance that the product is “rectified” as a collection-level trait. Request the supplier’s stated tolerance range for the exact SKU, referenced against the applicable ISO 10545-2 method, and treat that as the figure to be confirmed against the actual delivered batch rather than assumed from the product listing.
Mock Up Plank Layout With the Proposed Joint
Confirming the edge type and declared dimensions answers a measurement question, but it does not answer how the floor or wall will actually look once the planks are laid out with a chosen joint width and pattern. That visual outcome depends on several things acting together: the tile’s actual geometry as produced, the face design printed or pressed onto the surface, the grout color and width selected, and the specific method the installer intends to use for setting the tiles.
A wood-look tile’s face design is engineered to simulate the grain and board variation of natural wood, which means adjacent planks are often produced with different face patterns within a set to avoid visible repetition. This variety interacts with joint width in ways that are difficult to judge from a small sample chip. A layout that looks convincing on a single row of planks may reveal pattern repetition, color clustering, or an uneven rhythm once extended across a full room, particularly if the chosen joint width is narrow enough that the eye reads the planks as a continuous surface rather than as discrete tiles.
Grout color choice changes this further. A grout color close to the tile’s base tone tends to minimize the visual separation between planks, which can make minor dimensional variation less noticeable; a strongly contrasting grout color makes every joint line, and any inconsistency in that line, considerably more visible. Where the buyer’s design intent calls for a seamless plank effect, a contrasting grout works against that intent regardless of how well the tile’s edge type supports a narrow joint.
Testing this requires actual samples laid out in the proposed pattern and joint width, not a rendering or a single-plank mock-up. A conditional contrast is useful here: where the project calls for a running or brick-style plank pattern with a narrow joint, the mockup needs enough planks laid in sequence to reveal whether face-pattern repetition becomes visible at that spacing; where the project calls for a herringbone or chevron layout, the mockup needs to confirm that the tile’s actual edge geometry allows the angled cuts to meet cleanly at the chosen joint width. Each layout stresses a different aspect of the tile’s geometry, and a mockup built for one pattern does not confirm acceptability for a different one.
Coordinate Installer Method and Substrate Inputs
The edge type, declared dimensions, and approved mockup layout together describe what the finished surface should look like, but achieving that result depends on how the installer sets the tile and what the substrate underneath is doing. A rectified tile’s narrow-joint capability is only realized if the installer’s setting method actually achieves consistent spacing and flatness across the full field, and if the substrate beneath the tile is flat and stable enough to avoid introducing lippage that the tile’s own precision cannot correct.
Large-format wood-look planks, which are common in this product category given the design’s intent to simulate long wood boards, place particular demands on substrate flatness because a long plank will visibly telegraph any dip or high point in the substrate along its length. Where the substrate has not been leveled to a tolerance appropriate for the plank length being installed, even a well-declared rectified tile with tight dimensional tolerance can show lippage at the joints, because the problem originates below the tile rather than in the tile itself.
The installer’s setting method, including the choice of leveling system, trowel notch size, and adhesive coverage approach, is a separate variable from the tile’s own edge type and dimensional tolerance. A buyer coordinating a project should treat the installer’s method as an input that must be confirmed alongside the tile specification, not as a detail that resolves itself once the correct tile is ordered. Where the installer’s standard method was developed for a different tile category or a different plank length, that method may need to be adjusted for the specific SKU being installed, and this adjustment should be confirmed before installation begins rather than discovered during it.
This coordination connects back to the mockup stage: a mockup built with one installer’s method and substrate preparation does not necessarily predict the result when a different installer or a different substrate condition is used on the actual project. Where the project involves a different installation crew or substrate type than the one used for mockup approval, the buyer should confirm that the same edge type, joint width, and layout decisions still apply under those different conditions, because the underlying geometry relationships do not change, but the execution variables that depend on them can.
Approve the Edge-and-Layout Combination in Writing
| Record item | What to identify | Límite de decisión |
|---|---|---|
| Edge type | The declared edge type for the exact SKU | Do not infer it from photographs or a collection name |
| Declared size | The supplier’s declared size for the exact SKU | Record it with the edge type and joint approach; it does not guarantee the installed result |
| Joint approach | The proposed joint used in the plank-layout test | Joint appearance also depends on tile geometry, face design, grout choice and the installer’s approved method |
| Mockup acceptance | The decision reached from the actual-sample mockup | Acceptance applies to the evaluated edge-and-layout combination rather than guaranteeing every installed result |
The decisions made across edge declaration, dimensional evidence, layout mockup, and installer coordination only protect the project if they are captured together as a single approved record, rather than as separate approvals that each cover one piece of the picture. An edge type confirmed in isolation does not guarantee the layout will look acceptable; a layout approved on a mockup does not guarantee the same result if the declared size or installer method changes afterward. The record needs to connect these elements rather than treat any one of them as a standalone guarantee.
This is also the stage where project information supplied by the buyer feeds into how VITAGRES reviews a quotation or configuration for the project. The specifics the buyer provides, including the intended joint width, the layout pattern, the installer’s proposed method, and the substrate condition, give the supplier the basis to confirm whether the quoted SKU’s declared edge type and dimensions actually support the visual outcome the buyer is specifying, rather than leaving that confirmation implicit in the product listing.
Where the approved combination is recorded clearly, it becomes the reference point if a dispute arises later about whether the installed result matches what was approved. Without that record, there is no fixed baseline to check the installed floor or wall against, because each element, the edge type, the declared size, the joint approach, and the mockup decision, could otherwise be interpreted independently after the fact.
A narrower visual brief, such as approval of a single mockup panel under specific lighting and viewing conditions, should not be read as a guarantee covering every area of a larger installation, particularly where room geometry, lighting, or plank orientation varies across the project. Where the project includes multiple rooms or exposures with different lighting conditions or sightlines, the buyer should confirm whether the approved mockup needs to be repeated under those different conditions, because a combination accepted in one location does not automatically transfer its visual outcome to a different one.
Preguntas frecuentes
Q: Is rectified wood-look tile automatically the better choice for a plank layout?
A: No. First confirm the declared edge type and dimensions for the exact SKU, then test the proposed plank layout and joint with actual samples. The preferred option should follow the evaluated combination rather than the edge label alone.
Q: Can I identify a rectified or pressed edge from product photographs?
A: Do not rely on photographs or a collection name. Request the edge declaration for the exact quoted SKU so the comparison is tied to the tile being purchased.
Q: What dimensional evidence should I request before comparing the two options?
A: Request dimensional evidence for each exact SKU under consideration. ISO 13006 provides classification scope, while ISO 10545-2 identifies measurement methods; neither summary by itself proves a supplier’s rectification claim, batch tolerance, or installation acceptance value.
Q: Why should the proposed joint be tested with actual tile samples?
A: Because the joint appearance also reflects tile geometry, face design, grout choice, and the installer’s approved method. A sample mockup lets the buyer assess the intended combination before treating a narrow visual brief as achievable on the project.
Q: What should be agreed with the installer before approving the tile?
A: Review the proposed plank layout, joint approach, grout choice, relevant substrate information, and the installer’s approved method together. Use the mockup to resolve the combination that will be recorded for the project.
Q: What should the written approval record include?
A: Record the exact SKU’s edge type and declared size, the joint approach used in the test, and the mockup decision. Treat that acceptance as applying to the evaluated edge-and-layout combination, not as a guarantee of every installed result.