How do i plan my tile layout so i do not end up with thin slivers?
Quick Answer
Plan the layout before you mix any adhesive by measuring the room, marking centre lines, and dry-laying tiles with the real grout joint included. Adjust the starting point so cut tiles at the edges are balanced and not awkwardly narrow. A good rule is to avoid very small edge cuts where possible by shifting the layout, changing tile orientation, or using a border tile.
Overview
The best way to avoid thin slivers is to treat tile layout as a planning job, not something you sort out as you go. Start by measuring the actual tiled area in more than one place, because walls are often out of square and room widths can vary. Then work from control lines rather than from a wall, since walls and cabinets are not always straight. Dry-lay a row of tiles with spacers so you are planning with the true tile size plus the grout joint, not just the tile itself. Once you can see how the cuts land at the edges, shift the whole layout slightly if needed. The aim is usually to end up with larger, more even cuts on opposite sides rather than a full tile on one side and a thin strip on the other. Also think about what people notice first: a doorway, the main sightline, a shower entry, or the wall opposite the room entrance may deserve the cleanest layout. In kitchens and bathrooms, fixed features such as vanities, tubs, drains and cabinets matter as much as the room shape. If the room is badly out of square, or the tile pattern is complex, plan around the most visible line and let less noticeable cuts fall where they are less obvious.
Who this is for
Homeowners and DIY renovators planning wall or floor tiling, especially in bathrooms, kitchens, laundries and entryways.
What you’ll need
- Tape measure
- Straightedge or long level
- Chalk line or pencil line
- Tile spacers matching your planned joint width
- A few actual tiles from the batch
- Graph paper or a simple room sketch
- Square or angle finder if the room may be out of square
Before you start
Check the tile size variation, intended grout joint, pattern, and where movement joints are required by the tile system instructions and relevant standards. Measure the room after substrate prep, not before, because build-up from underlay or wall lining can change the finished space.
Step-by-step
- 1
Measure the real tiled area carefully
Measure the length and width of the area in several places, not just once. Note any alcoves, doorways, cabinets, bath panels, shower trays, niches or steps. Check whether opposite walls are parallel and whether corners are square.
Why: Thin slivers often happen because the layout was based on one measurement in a room that is actually uneven.
- 2
Choose the main visual starting point
Decide what should look best first: the centre of the room, the wall opposite the doorway, the shower entrance, or a feature wall. For floors, think about what is most visible when you enter. For walls, think about eye-level sightlines and fixtures.
Why: The most pleasing layout is not always mathematically centred; it is often the one that looks balanced in the areas people notice most.
- 3
Mark control lines, not just edge lines
Snap or draw a main reference line through the chosen focal area, then mark a second line square to it. Do not assume any wall is straight enough to tile directly from. If using a brick, herringbone, or diagonal pattern, mark the layout to suit that pattern.
Why: Control lines keep the layout true even when the room edges are not.
- 4
Dry-lay tiles with spacers included
Lay out a row and, if possible, a full cross of tiles along the control lines using the actual spacers you intend to use. Include trims or perimeter gaps in your planning if the system requires them. Then see what size cuts would land at each edge.
Why: Planning without the grout joint is a common reason edge cuts come out much smaller than expected.
- 5
Shift the layout to improve edge cuts
Move the starting line left, right, up or down until the cuts at opposite edges are reasonably even and not too narrow to cut or look good. If one side still ends up with a poor cut, consider changing tile orientation, using a border tile, or aligning to a more important visual feature instead of the exact room centre.
Why: A small adjustment at the start can eliminate thin slivers across the whole job.
- 6
Test the layout around obstacles
Check how the pattern falls around door jambs, toilet pans, vanity legs, floor wastes, outlets, corners and niches. Try to avoid tiny U-shaped or L-shaped cuts around penetrations if there is a cleaner alternative.
Why: Awkward cuts around fittings are fragile, harder to install neatly, and often more visible than edge cuts.
- 7
Confirm movement and perimeter allowances
Before fixing anything, confirm where perimeter gaps and movement joints need to go based on the tile adhesive and grout system instructions and recognised tile standards. Keep those allowances out of your visible tile count.
Why: If you ignore required movement space, the finished layout may be forced off plan and can fail later.
- 8
Recheck before installation begins
Once you are happy, mark the final reference lines clearly and double-check with actual tiles one last time. Only then start setting tiles.
Why: The last check catches simple errors before they become expensive and difficult to undo.
Why this works
Tile layout works best when the visible cut sizes are planned around the true module size: tile plus grout joint plus any required perimeter or movement allowance. By balancing cuts and prioritising sightlines instead of blindly centring on the room, you reduce noticeable slivers and end up with a cleaner, more professional-looking finish.
Common mistakes to avoid
- Measuring the room once and assuming the walls are parallel
- Planning from a wall or cabinet that is not straight
- Forgetting to include grout joints when calculating the layout
- Starting with a full tile in one corner without checking the opposite side
- Ignoring how the layout lands at doorways, drains, niches or fixtures
- Cutting very narrow pieces that are difficult to bond securely or look untidy
Troubleshooting
One edge ends up with a very narrow strip
Shift the starting line so both sides take larger, more even cuts, even if that means the layout is not perfectly centred.
The room is out of square and cuts widen along one wall
Keep tiles true to the main control line and hide the changing cut size on the least noticeable edge rather than following a crooked wall.
The layout looks fine on paper but not around the vanity or shower
Dry-lay more of the actual pattern around those features and reprioritise the focal point before installation.
Small cuts keep appearing around pipes or fittings
Adjust tile position slightly, or move the pattern so penetrations fall closer to the middle of a tile where a neater cut is possible.
Compare your options
Centred layout
Best for: Open areas where both opposite edges are visible
Pros: Usually gives balanced cuts and a symmetrical look
Cons: May not suit rooms with dominant fixtures or uneven sightlines
Feature-first layout
Best for: Bathrooms, kitchens and feature walls
Pros: Puts the neatest cuts where people notice them most
Cons: Cuts at hidden edges may be less even
Border or framed layout
Best for: Rooms where standard centring still creates poor edge cuts
Pros: Can absorb awkward dimensions and make the field tile look intentional
Cons: Adds planning, cutting and installation complexity
Diagonal layout
Best for: Rooms where square-set creates obvious slivers or where a visual widening effect is wanted
Pros: Can disguise uneven walls and make a space feel less boxy
Cons: Creates more cuts and more waste, and takes longer to set out
| Option | Best for | Pros | Cons |
|---|---|---|---|
| Centred layout | Open areas where both opposite edges are visible | Usually gives balanced cuts and a symmetrical look | May not suit rooms with dominant fixtures or uneven sightlines |
| Feature-first layout | Bathrooms, kitchens and feature walls | Puts the neatest cuts where people notice them most | Cuts at hidden edges may be less even |
| Border or framed layout | Rooms where standard centring still creates poor edge cuts | Can absorb awkward dimensions and make the field tile look intentional | Adds planning, cutting and installation complexity |
| Diagonal layout | Rooms where square-set creates obvious slivers or where a visual widening effect is wanted | Can disguise uneven walls and make a space feel less boxy | Creates more cuts and more waste, and takes longer to set out |
Alternatives
- Use a different tile size that suits the room dimensions better
- Rotate rectangular tiles so the long side runs in the more forgiving direction
- Add a trim, skirting tile or border course to absorb awkward edge dimensions
- Use a mosaic sheet in difficult small areas where large-format tiles would create tiny cuts
Pro tips
- Use tiles from the actual batch for dry layout because nominal size and true size are not always the same.
- Photograph your dry layout before installation so you can refer back to it.
- If a doorway is a focal point, test what the first full tile looks like when you enter the room.
- For wall tiling, check how the layout lands at the top and bottom as well as at both ends.
- If you are using patterned or veined tiles, plan the visual flow as well as the cut sizes.
Safety notes
- Dry-lay tiles on a clean, stable surface so they do not slip and chip.
- When moving from planning to cutting, wear suitable eye, hearing and respiratory protection for the cutting method and tile type.
- Large-format tiles can be heavy and sharp-edged; handle them with care.
Legal & regulatory notes
Local building requirements can apply to wet areas, substrates, waterproofing and movement joints. Follow the tile, adhesive and grout manufacturer instructions and any applicable local code or consent requirements for your project.
What this guide does not cover: This guide covers layout planning to avoid thin slivers. It does not give full instructions for substrate repair, waterproofing, tile cutting methods, adhesive selection, or complete wall and floor tiling installation.
Cost considerations
Good layout planning usually saves money by reducing wasted tile, recuts and visible mistakes. More complex layouts such as diagonal patterns, borders or large-format tiles around many obstacles usually increase labour time and cutting waste.
Prefer to hire a professional?
If this job is beyond a confident DIY — or the work needs to be done by a licensed professional — you can find a verified qualified local tradesperson through these directories of real, verified trade businesses. Compare local tradespeople, read their details and request quotes before you commit.
Frequently asked questions
Should I always centre the tile layout in the room?+
No. Centring often works well, but the best layout is usually the one that gives balanced cuts in the most visible areas and works neatly around fixtures.
How small is too small for an edge cut?+
There is no single safe number for every tile and setting, but very narrow strips are usually best avoided because they are harder to cut, bond and keep neat. Test with your actual tile, cutter and layout.
Do I include grout lines when planning?+
Yes. Always plan with the actual joint width included, otherwise your edge cuts can end up much smaller than expected.
What if my walls are not square?+
Use control lines and keep the tile grid true. Let any changing cut size occur in less noticeable areas rather than following a crooked wall.
Is it better to change tile size instead of forcing the layout?+
Often yes. A tile size or shape that suits the room can produce cleaner cuts and a better result with less waste.
Sources & references
Guidance on this page is traced to documented sources. Last checked 25 September 2026.
- The Tile Council of North America · industry
Supports best-practice tile layout principles, movement accommodation awareness, and the importance of planning and substrate considerations.
- Schluter Systems · manufacturer
Supports the need to account for movement joints, edge profiles, and installation-system requirements during tile layout planning.
- MBIE New Zealand Building Performance · government
Supports checking New Zealand building requirements for wet areas, substrates, waterproofing and compliance considerations before tiling.
The core layout principles stay fairly stable, but manufacturer installation requirements and local compliance expectations can change.