Custom Diamond Painting Size Guide – Square vs Round Drills Explained | DYC

DIY Diamond Painting Size & Drill Guide for Custom Art

This guide is part of DYC’s Custom Diamond Painting Series


From little moments to lasting sparkle — that’s DYC.

Estimated reading time: 7–8 minutes


You can have the perfect photo, but choosing the right canvas size and drill shape will decide whether your custom diamond art looks pixelated or breathtaking. This is the part even seasoned crafters debate endlessly — and today, we’ll break it down once and for all.

Table of Contents


1. Why Size and Drill Shape Matter

DIY Diamond painting is a mosaic — every 2.7 mm drill acts as a “pixel.” When your canvas is too small, thousands of details collapse into blocks. The difference between 30×40 cm and 60×80 cm isn’t subtle; it’s like comparing a phone thumbnail to a 4K screen.

If your pet’s eyes looked sharp in the photo but turned blurry on canvas, the size wasn’t the only problem — drill type, light, and density all play their part. Let’s decode how to match them the right way.

The example is 20 x 30 cm, which doesn't look very good.

Custom Diamond Painting Size Guide – Square vs Round Drills Explained | DYC

Common Mistake Scenarios

  • Canvas too small → faces merge and lose expression
  • Wrong drill shape → pet fur looks flat or over-sharp
  • Photo detailed but background busy → overall looks grainy

2. How Canvas Size Affects Detail

Every extra centimeter on your canvas means hundreds more drills — more “pixels,” and more clarity. That’s why size is not about how big your wall is; it’s about how much detail your subject needs to breathe.

Drill Density and Information

Size-to-Detail Quick Math

  • 30×40 cm ≈ 12k–15k drills
  • 40×50 cm ≈ 20k–30k drills
  • 50×70 cm ≈ 35k–50k drills
  • 60×80 cm ≈ 55k–75k drills

The higher the drill count, the smoother the color transition and the sharper the fine lines.

Face Clarity Rule

For portraits, keep each face at least 6–8 cm tall on the final canvas. Anything smaller and eyes or lips will blur. If the faces in your chosen size are smaller than that, go one size up.

Custom Diamond Painting Size Guide – Square vs Round Drills Explained | DYC

Recommended Minimum vs Ideal Sizes

Subject Minimum Size Ideal Size
Single portrait 40×50 cm 50×70 cm
Couple or duo 50×70 cm 60×80 cm
Family or group (3+) 60×80 cm 70×90 cm
Pet (dark/white fur) 40×50 cm 50×70 cm
Building / architecture 50×70 cm 60×80 cm

Time & Effort Estimate

As a rough guide: every 1,000 drills takes about 20–30 minutes with a single placer or 10–15 minutes with a multi-placer. A 50×70 cm piece (around 40,000 drills) can take roughly 15–25 hours to complete, depending on pace.

Custom Diamond Painting Size Guide – Square vs Round Drills Explained | DYC

3. Square vs Round Drills: Real-World Feel

There’s no universal “better” — each type gives a different feel. Square drills lock neatly like tiles; round drills glide quickly and shimmer softly.

Aspect Square Drills Round Drills
Look & Finish Crisp, tiled, high-definition Soft, glowing, forgiving
Speed Slower, precise Faster, smoother
Tolerance Low (misalignment shows) High (easy to place)
Best For Portraits, fur, architecture Florals, abstract, casual crafting

Veterans often say, “Round for relaxation, square for precision.” If you crave alignment satisfaction and crisp edges, go square. If you want meditative speed and sparkle, round is your friend.

4. Choosing the Right Combo for Your Photo

Your photo type should drive both size and drill choice. Here’s a quick decision guide based on real-world outcomes.

Scene Recommended Size Drill Type Notes
Single portrait 50×70 cm Square Go 40×50 only if lighting and focus are perfect.
Couple or duo 50×70 – 60×80 cm Square or Round Square for realistic edges, round for romantic glow.
Family (3+ people) 60×80 – 70×90 cm Square Ensure faces ≥6–8 cm high on canvas.
Pet (dark or white fur) 50×70 cm Square Side lighting keeps fur textured.
Architecture / lines 50×70 – 60×80 cm Square Straight edges stay crisp.
Abstract / floral 40×50 – 50×70 cm Round Soft sparkle works better than precision.

Custom Diamond Painting Size Guide – Square vs Round Drills Explained | DYC

5. Inside DYC Materials: Why It Matters

At DYC, both size and drill type are supported by materials that keep details intact and colors vibrant.

  • 280g flocked canvas: firm and smooth; square drills align neatly without glue bleed-through.
  • 24-facet high-brightness resin drills: extra sparkle; round drills show soft luminosity even in large pieces.
  • Eco-certified adhesive: strong, odor-free, and stable for over 10 years of display.
  • Manual color mapping: real designers check tone transitions for skin, fur, and sky before production.
DYC diamond painting materials quality – canvas drills adhesive design
High-density 280g flocked canvas and 24-facet drills enhance clarity even in large custom artworks.

6. FAQ

Is bigger always better?

Not always. Larger canvases preserve more detail but require more space and patience. Increase size only when your subject has small features or multiple faces.

Do square drills really look sharper?

Yes, but they also expose misalignment more easily. Use a ruler edge or light pad to keep rows straight. With DYC’s precise sizing and printed grid, gaps are minimal.

Will round drills leave gaps?

Tiny gaps are normal under strong light, but invisible from normal distance. They create a soft sparkle rather than full coverage shine.

Can I do a multi-person photo in 40×50 cm?

It will print, but faces under 6 cm tall will blur. Choose 60×80 cm or above for clarity. DYC offers preview renders by size to help you decide.

How do I estimate working time?

Each 1,000 drills takes roughly 15–25 minutes depending on your tool and focus. Smaller round-drill projects finish faster, square-drill artworks take longer but look tighter.


Still not sure which combo fits your photo best? Upload it and let DYC’s design team preview your ideal size and drill type before production.

Start Your Custom Diamond Painting


From little moments to lasting sparkle — that’s DYC.


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