Mont Marte Double Thick Pre-Primed Stretched Canvas – 45.7 × 45.7 cm (18″ × 18″)

Square up for perfect symmetry. This 18″ × 18″ deep-edge canvas sports a 38 mm kiln-dried pine frame, rust-proof back-staples and heavyweight 380 gsm cotton duck that’s triple-gessoed and ready to paint straight out of the wrapper. An acid-free ground keeps your pigments bright and the fibres strong for decades, so every centred composition or pop-art grid stays museum-fresh.

TL;DR – Gallery-depth 18″ square canvas, 380 gsm cloth, pre-primed, built for balanced compositions and archival longevity.

Key Features at a Glance

38 mm deep edge – rigid profile minimises flex and casts a pro gallery shadow-gap.

Back-stapled, coated staples – paint your edges; no rusty pinpoints later.

Triple-gessoed, pre-primed surface – even tooth; no sinking acrylic or dull oil patches.

380 gsm tight-weave cotton duck – loves knife peaks, layered glazes and light collage.

Acid-free ground – locks pigments, prevents yellowing for true-to-hue archiving.

Square symmetry – perfect for mandalas, pop-art grids and centred portraits.

Why Artists Love This Canvas

Rule-of-thirds rebel – explore perfectly centred subjects without rectangle bias.

Grid-wall hero – line up four or nine for an instant Insta-ready gallery.

Moderate-media sweet-spot – handles acrylic pours, oil glazes and light mixed-media.

Car-boot friendly – 45 cm span slides into hatchbacks for workshops.

Floater-frame compatible – drops straight into most 20″ square floaters.

Complete Your Setup 

Easel Range – Find the perfect easel for you. 

Gloss Varnish – Seal and protect your finished artwork.

Mont Marte Premium Gesso 1 L – Add an extra coat if you love an ultra-slick surface.

Canvas Accessories – Get that show on the wall fast, no framing needed.

Check Out Which Mont Marte Canvas Fits Your Vision

Product Specs / Details

Canvas size: 45.7 × 45.7 cm (18″ × 18″)

Depth: 38 mm gallery edge

Fabric weight: 380 gsm cotton duck

Primer: Triple universal gesso (pre-primed, ready to use)

Frame timber: Kiln-dried pine, mitred corners

Finish: Acid-free, double-row back-stapled

SKU: CMMD1818

Why Buy from Art Shed

Aussie family-owned & artist-run – we paint what we sell.

Fast dispatch from Melbourne & Brisbane – parcels packed with care.

Candy Club rewards – earn points with every purchase.

30-day easy returns – change of mind? No worries.

Real artist support – phone, DM or live chat for tips.

Tip from the Shed

“Paint four complementary squares, Blu-Tack them in a diamond for renter-friendly décor, then rotate each season for a fresh vibe.”
 

Real Reviews

⭐⭐⭐⭐⭐ “Nice heavy duty canvasses that are well supported with cross bracing. I usually give them another coat of gesso even though they're triple primed.”

⭐⭐⭐⭐⭐ “A nice canvas to paint on....Stretched tight for a good strong surface.”

⭐⭐⭐⭐⭐ “I love the feeling of these double thick canvases. They hold the paint and clients feel as if they have a quality product. Regards Graham Smith.”

FAQs

Do I need to gesso the Mont Marte Premium Double Thick Pre-Primed Canvas 45.7 × 45.7 cm?

No—triple gesso is already applied.

Is the Mont Marte 18″ square canvas suitable for acrylic pouring?

Yes—380 gsm cloth and 38 mm edge stay rigid with moderate pours.

Why choose a square canvas?

Square symmetry supports centred comps, grid series and fits tight vertical or horizontal walls.

Are the staples visible on the sides?

No—staples are secured on the back for a clean gallery wrap.

How do I tighten the Mont Marte Premium Double Thick Canvas 45.7 × 45.7 cm if it slackens?

Mist the back lightly, let it dry flat, or tap the included corner keys deeper.

Keep Learning with Art Shed

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Artist-Grade vs Chain Store Canvas: What You Need to Know

How to choose your canvas

How to fix warped canvas

Ready to go square? Grab an 18″ pre-primed canvas, share your centred masterpiece, and tag #ArtShedOnline, we’ll hype every brushstroke!