I’m not sure which size matboard I need. How do I measure correctly?

No problem! The easiest way to choose the right size is to measure two things: The outer dimensions of your picture frame (this tells us which matboard size to use), and The actual size of your image or artwork (this tells us how big to cut the window). We’ll cut the window slightly smaller than your image to hold it in place. If you're still unsure, we’ve written a simple step-by-step guide to help. Read our Frame Size Measuring Guide for helpful diagrams and measuring tips.

Mat Board Suppliers Australia | White Acid-Free Blank Sheets

Name: Ultimate White Acid-Free Mat Board - Blank Full Sheets
Brand: Profile Products (Australia) Pty Ltd
SKU: 11197-5
Price: 51.95 AUD
Availability: InStock

Ultimate White Acid-Free Mat Board - Blank Full Sheets

$51.95

Tax included. Shipping calculated at checkout.

Quantity

Made with ❤ in Australia

Acid-Free White Core

Custom Frame Quality

Fast Delivery with Tracking

People also add:

Perfect for DIY framers, artists, and craft enthusiasts - our Ultimate White Blank Mat Board Sheets offer a flexible, professional-grade option for custom-cut projects and backing applications.

These uncut, full-size sheets are made from 4-ply (1.4mm thick) Ultimate White matboard with a bright white core. Each sheet is acid-free and buffered with calcium carbonate to preserve the quality of your prints, artworks, or presentations over time.

Blank matboards are commonly used to create custom window mats, backing layers for framing, or as a base for portfolios, school projects, and gallery displays.

If you're looking to cut your own mat openings or use a full sheet as a protective layer, these boards provide the versatility you need.

Key Features of Ultimate White Blank Mat Board Sheets

Uncut Full Sheets – No window opening, giving you full flexibility to cut and design as needed.
Acid-Free & Buffered – Made from conservation-grade pulp and buffered with calcium carbonate for long-term stability.
Premium Quality – 4-ply, 1.4mm thick matboard with a clean, bright white bevel core.
Imported Stock – Sourced from North America and finished in our Sydney workshop.
Multiple Size Options – Choose from a variety of full sheet sizes suited to both framing and craft use.

Popular Uses for Full Ultimate White Uncut Mat Board Sheets

Cutting your own window mats
Backing boards for picture frames
Portfolio, school, or gallery projects
Craft or model-making projects

Size & Colour Notes

Sheet sizes are listed in inches and are cut to standard dimensions. Metric (cm) values are approximate for reference only.
Due to screen variations, actual product colours may vary slightly from what you see online. These boards have an Ultimate White front with a white core and backing.

Also looking for something else?

Acid-Free Foam Board – Shop our Cut-to-Size 5mm White Foam Board for reliable backing and craft use.
Self-Adhesive Foam Board – Try our Self-Adhesive Foam Board for fast, no-glue mounting.
MDF Backing Boards – Explore Cut-to-Size MDF Boards for strong, structural support inside frames.

Use our helpful Matboard Border Calculator to calculates the distance of mat board borders inside your picture frame, based on your artwork dimensions and frame dimensions. You can also generate a scaled diagram for this, with dimensions as well.

Artwork Dimensions

Enter dimensions of your artwork in centimeters, or inches. The calculator will subtract 0.5cm from each side for an overlap of the matboard and the edges of your artwork.

Frame Dimensions

Do not enter the overall outside dimensions of your frame. Instead, measure the backing from behind your frame, inside the frame rebate. These measurements will accurately match your glass size.

Frame Border Results

Calculated values are accurate.

Matboard Size	-
Opening Window Size	-
Top Border	-
Bottom Border	-
Left Border	-
Right Border	-

Matboard & Backing Quality

All Profile Australia matboards and backings are made from premium, acid-free pulp. They’re buffered with calcium carbonate to help protect your artwork from discolouration, fading, or deterioration over time. Each mat board features a bright white core and a crisp bevel-cut opening for a professional finish.

Cut & Construction

Material Thickness: 4-ply, 1.4mm thick mat board and backing
Bevel Window: Double-layered matboard with a 5mm reveal
Cutting Method: Swiss-made computerized matcutter for clean, accurate bevels
Made In: Sydney, Australia

Packaging

Sizes up to 12x14" come in a resealable 40-micron cello bag
Larger sizes are professionally shrink-wrapped
Packaging is acid-free and moisture-resistant to prevent marking in transit

Fitting & Size Notes

Window openings are cut 3–5mm smaller than the artwork size to create a slight overlap that holds your image securely
Outer dimensions are cut to standard frame sizes in inches (metric listed as reference only)

Colour Disclaimer

Due to differences in screen displays and device settings, actual product colours may vary slightly from what you see online.

Shipping Rates

We ship Australia-wide from our Sydney warehouse and framing workshop.

Flat Rate $14.95 – for NSW, VIC, QLD, SA, ACT
Free Shipping – on orders over $150 (excludes WA, NT & TAS)
Flat Rate $29.95 – for WA, NT and TAS

Note: Large framed prints to remote areas may fall outside our free shipping policy.

Production Times (Standard)

Most products (e.g. photo albums, frames, body care) dispatch within 1–3 business days
Made-to-order picture frames: allow 1–2 weeks for production

For art prints, see Decorator Art Prints Shipping Info.

Production Times (Peak Season)

For Christmas and New Year updates, see our Holiday Shipping Info page.

Estimated Delivery Times

Sydney Metro & surrounds: 1–3 business days
Regional & interstate (WA, NT, TAS, SA): up to 7–14 business days

Shipping times are estimates only and may be extended during peak periods.

Tracking & Notifications

Once dispatched, you'll receive a confirmation email with tracking details. Please check this regularly for delivery updates.

Occasionally, production or quality checks may cause delays. If your order is delayed, we appreciate your patience and recommend allowing a few extra days before contacting us.

Profile Australia is not liable for delays beyond our reasonable control.

Express Shipping

Express Post is currently unavailable due to high carrier costs.

International Orders

We do not ship outside of Australia at this time, including New Zealand.

More Questions?

Visit our FAQs page for more details.

We want you to be happy with your purchase. If something isn’t right, we’re here to help.

You’re welcome to return most new, unused items within 30 days of delivery. If we’ve made a mistake or the item is faulty, we’ll cover the return shipping. For change-of-mind returns, shipping costs are not included.

To start a return, simply log in to your account and select the order you'd like to return. We'll be in touch to guide you through the next steps.

For full details, please see our Returns & Refund Policy.

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Made in Australia

Precision cut on our Swiss Computerised Matcutters

Cello-Bag Packaging

Each window mat board is individually packaged into for protection from marking and moisture. Smaller size window mats under 12x14in are inserted into cello-bags. Larger sizes are professionally shrink-wrapped.

Lifetime Guarantee

We proudly offer a lifetime guarantee on all of our acid free mat boards as we are confident they will stand the test of time for years to come.

Custom Frame Quality

Hand-made with care using premium, custom framing grade, acid-free mat boards.

As Reviewed By You

FAQs for Custom Matboards

A matboard is a piece of acid-free board with a window cut-out that surrounds your photo or artwork inside a frame. It adds a visual border, protects your image from touching the glass, and enhances the overall presentation.

If you want to learn more, we’ve also written a comprehensive guide on matboards - What is a Mat Board?

No problem! The easiest way to choose the right size is to measure two things:

The outer dimensions of your picture frame (this tells us which matboard size to use), and
The actual size of your image or artwork (this tells us how big to cut the window).

We’ll cut the window slightly smaller than your image to hold it in place.

If you're still unsure, we’ve written a simple step-by-step guide to help.

Read our Frame Size Measuring Guide for helpful diagrams and measuring tips.

No. We offer a wide range of popular, fixed outer sizes to suit standard frames. The window opening is custom-cut to your selected image dimensions, but outer sizes are not customisable.

Yes. If you can't find the size you need, you can choose our alternative Custom Cut-to-Size Mat Board option.

These matboards are designed to suit common photo frame sizes in Australia, including both imperial (inch) and A-size formats, as well as some popular Kmart® and IKEA® frame sizes.

For more IKEA®-specific frames sizes, check out our: Mat Boards for IKEA® Frames

(IKEA® is a registered trademark of Inter IKEA Systems B.V., and Kmart® is a registered trademark of Kmart Australia Limited. Profile Products is not affiliated with or endorsed by either company.)

A single matboard has one window layer. A double matboard includes two layered mats to create a 5mm stepped border for added depth and contrast. Ideal for professional or gallery presentation.

Yes. All Profile matboards are made from acid-free pulp, buffered with calcium carbonate for stability. They’re suitable for framing photos, artworks, prints, and archival pieces.

If you're new to using matboards, inserting your photo can feel a little fiddly - but it’s easier than you might think.

We recommend using acid-free tape or photo-safe adhesive to secure your image to the back of the matboard. Then, place the matboard into your picture frame with a backing board behind it.

Need a step-by-step visual guide?
Follow our full instructions in this article: How to Insert Your Photos into a Matted Photo Frame

Our matboards are precision-cut using a Swiss-made computerised mat cutter (CMC). This ensures clean bevelled window openings, sharp corners, and exact sizing.

At this time, our custom matboards support one window only. However, check our range of popular collage matboard layouts which may suit what you're looking for.

Yes, we offer custom-cut oval matboards, including single or double layers in various colours. Perfect for portrait framing. Browse the full range in our Oval Mat Boards collection.

Each matboard is cut to order in our Sydney workshop. Please allow around 3–5 business days for production, plus shipping time.

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Great Value!

Ultimate White Acid-Free Mat Board - Blank Full Sheets

from $51.95