A3 printable templates

A3 1cm Square Grid Paper PDF

These A3 square grid paper templates use 1cm squares, also equal to 10mm spacing on a 297 x 420 mm page. Download the PDF directly, save a PNG preview, or customize the grid for larger handwriting, classroom charts, geometry, and planning.

Paper
A3 / Portrait
Format
PDF / PNG
Spacing
1cm
Cost
Free
A3 1cm Square Grid Paper PDF preview

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Template details

About this portrait A3 1cm sheet

A3 provides twice the area of A4 while staying within the standard ISO A-series used for drawings, plans, and larger worksheets. Each square on this template measures 1cm, equal to 10mm, so the grid contains 1 square per centimeter.

With the template's 10mm margins, the usable grid area is 277 x 400 mm. It contains approximately 27 x 40 complete 1cm squares in portrait orientation.

Paper size
297 x 420 mm (11.69 x 16.54 in)
Printable grid area
277 x 400 mm
Complete squares
27 x 40
Grid density
1 square per centimeter

Why use A3 paper with a 1cm grid?

A 1cm grid leaves more room for handwriting, labels, early math, classroom charts, and diagrams that need larger cells.

Engineering sketches

The larger metric sheet provides room for dimensions, annotations, and multiple views without making the grid too small.

Classroom handouts

A3 works well for shared activities, larger coordinate plots, geometry constructions, and display-ready worksheets.

Plans and layouts

Use portrait for long plans or landscape for wider diagrams, tables, process maps, and measured layouts.

A3 vs Tabloid (11 x 17) 1cm square grid paper

Both formats preserve the same 1cm grid measurement. Choose A3 for engineering sketches and larger diagrams; choose Tabloid (11 x 17) when large handouts, plans, and presentation sheets is a better match for the printer or project.

Open Tabloid (11 x 17) 1cm square grid paper →
Comparison A3 Tabloid (11 x 17)
Page size 297 x 420 mm (11.69 x 16.54 in) 11 x 17 in (279.4 x 431.8 mm)
Printable grid area 277 x 400 mm 259.4 x 411.8 mm
Complete 1cm squares 27 x 40 25 x 41
Typical use Engineering sketches and larger diagrams Large handouts, plans, and presentation sheets

More A3 Square Grid Paper Templates

12 ready-made templates are available for this paper size.

A3 2mm Square Grid Paper PDF preview

A3 2mm Square Grid Paper PDF

A3 portrait | 2mm spacing | Gray grid

A3 Landscape 2mm Square Grid Paper PDF preview

A3 Landscape 2mm Square Grid Paper PDF

A3 landscape | 2mm spacing | Gray grid

A3 5mm Printable Square Grid Paper preview

A3 5mm Printable Square Grid Paper

A3 portrait | 5mm spacing | Gray grid

A3 Landscape 5mm Square Grid Paper PDF preview

A3 Landscape 5mm Square Grid Paper PDF

A3 landscape | 5mm spacing | Gray grid

A3 1cm Square Grid Paper PDF preview

A3 1cm Square Grid Paper PDF

A3 portrait | 1cm spacing | Gray grid

A3 1cm Landscape Square Grid Paper preview

A3 1cm Landscape Square Grid Paper

A3 landscape | 1cm spacing | Gray grid

A3 1/4 Inch Printable Square Grid Paper preview

A3 1/4 Inch Printable Square Grid Paper

A3 portrait | 1/4 inch spacing | Gray grid

A3 Landscape 1/4 Inch Square Grid Paper PDF preview

A3 Landscape 1/4 Inch Square Grid Paper PDF

A3 landscape | 1/4 inch spacing | Gray grid

A3 1/2 Inch Square Grid Paper PDF preview

A3 1/2 Inch Square Grid Paper PDF

A3 portrait | 1/2 inch spacing | Gray grid

A3 Landscape 1/2 Inch Square Grid Paper PDF preview

A3 Landscape 1/2 Inch Square Grid Paper PDF

A3 landscape | 1/2 inch spacing | Gray grid

A3 1 Inch Printable Square Grid Paper preview

A3 1 Inch Printable Square Grid Paper

A3 portrait | 1 inch spacing | Gray grid

A3 Landscape 1 Inch Printable Square Grid Paper preview

A3 Landscape 1 Inch Printable Square Grid Paper

A3 landscape | 1 inch spacing | Gray grid

FAQ

Answers specific to printing 1cm square grid paper on A3 sheets.

How many 1cm squares fit on A3 paper?

With the current 10mm margins, this portrait A3 template fits approximately 27 x 40 complete 1cm squares. Partial space can remain at the outer edge when the printable area is not an exact multiple of the grid spacing.

Is 1cm graph paper the same as 10mm graph paper?

Yes. One centimeter equals exactly 10 millimeters, so 1cm and 10mm describe the same grid spacing.

Can I print A3 square grid paper on Tabloid (11 x 17) paper?

Not at the original page size without cropping or scaling. Scaling changes the 1cm measurement, so use the Tabloid (11 x 17) template when that is the paper loaded in the printer.

Which print setting keeps the grid true to size?

Select A3 paper, use Actual Size or 100% scale, and disable Fit to Page. Then use a ruler to confirm the 1cm spacing.

Should I use portrait or landscape A3 square grid paper?

Portrait is better for vertically organized calculations, timelines, and worksheets. Landscape is better for wide charts, tables, schedules, and layouts. Both use the same 1cm spacing.