Custom 3.5mm Extra Thick Whitecore Picture Mount: Bevel Cut, Made to Order

Extra Thick Picture Mount | 3.5mm Whitecore Bevel Cut | Acid-Free Conservation Mount Board | Custom Size Handmade in UK

Looking for a high-quality, extra-thick bevel mount to enhance your artwork? Our 3.5mm whitecore picture mounts offer a deep bevel cut and premium finish, perfect for photographers, artists, and galleries looking for a professional framing solution.

Our extra thick mounts are cut from 3.5mm thick (3500 micron) whitecore acid free mount card, as opposed to standard mounts, which are only 1.4mm or in some cases thinner.


• Extra Thick 3.5mm (3500 micron) Whitecore Mount.
• Conservation-Quality & Acid-Free – Prevents yellowing and protects artwork over time.
• Custom Size – enter your measurements for a bespoke mount.
• Ideal for Framing & Display – Perfect for exhibitions, home decor, galleries, and gifts.
• Multiple Colour Options – Available in 7 colours, including classic white, black, and cream.
• Made to Order in the UK – Hand-cut with precision for a perfect fit.
• Free UK Postage

Please choose your size category (based on the outside measurements of the mount), and whether you would like to order just the mount, or a mount, backing mount and cello wrap (B&C) from the drop down menu. Please note: the backing mount will be of standard thickness 1400 mount card. The cello wrap will come as a bag closest to the mount size, with any excess cello easily taped on the back for presentation.

Enter your custom outside size and aperture size in the personalisation instructions. Please ensure you have read the measurement instructions below before placing your order.

Not sure what size you need? Message us, and we’ll guide you through the best option for your artwork.

Bulk orders welcome – Contact us for custom pricing on wholesale or trade purchases.

MEASURING YOUR MOUNT

1 - Outside size - The outside size is the overall outside dimensions of the mount. If the mount is to fit a frame, this will be the size of the glass.

2 - Aperture size - There must be an overlap of approx 3mm on each size with the image and the aperture, with the image being slightly larger than the aperture so it stays in it's correct position behind the mount. For example, a 20cm x 20cm paper size would require a aperture of 19.4cm x 19.4cm. Please calculate the exact aperture size you will need.

3 - Border size - we will make the borders of the mount equal unless otherwise requested.

WHY CHOOSE BESPOKEMOUNTS

✔ 30+ Years of Expertise – We are trusted by professional artists, photographers, and galleries.
✔ High-Quality Materials – We use only conservation-grade, acid-free mount board.
✔ Custom Service & Expert Advice – We help you choose the perfect mount for your needs.