Mammoth Cave National Park oil painting print in an oak frame: a cave mouth in green forest

Mammoth Cave oil painting wall art in a gold frame on a wood shelf with potted plants

Mammoth Cave National Park oil painting print above a bed in a warm neutral bedroom

Mammoth Cave oil painting wall art in an oak frame above a mid-century walnut sideboard

Mammoth Cave National Park canvas print in a dark walnut frame above a cream sofa

Close-up of the Mammoth Cave oil painting print showing thick impasto brushstroke texture

Mammoth Cave oil painting wall art above a light wood desk in a home office

Mammoth Cave oil painting print in an oak frame above a credenza on a warm taupe wall

Mammoth Cave Forest Entrance Impasto Oil Painting Wall Art

$26.00

Size: 12" x 8"

Material: Paper

Choosing a size is the part of buying art online that people most often get wrong. The print arrives, it goes up, and it is smaller than the wall wanted. This guide has every size we print, drawn to scale, in inches and centimetres, and a size to start from for each of the walls people ask about most.

Portrait sizes

Most designs in the shop are portrait. They come in nine inch sizes plus A1 to A4. The inch sizes are not all the same shape: five of them are a 2:3 crop, which is tall and narrow, and four are 3:4, which is squarer and reads wider on the wall. It is worth checking the shape as well as the size, because 18 × 24 and 20 × 30 in are close in height but sit very differently above a sofa.

Size (inches)	Centimetres	Shape	Works well
8 × 12	20.3 × 30.5	2:3	A desk, a shelf, or one square of a gallery wall
12 × 16	30.5 × 40.6	3:4	Hallways, and grids of four
12 × 18	30.5 × 45.7	2:3	Pairs above a console or a narrow wall
16 × 24	40.6 × 61	2:3	Above a desk, or sets of three above a sofa
18 × 24	45.7 × 61	3:4	Pairs above a sofa or a bed
20 × 30	50.8 × 76.2	2:3	A single print above a full bed
24 × 32	61 × 81.3	3:4	One statement print on an open wall
24 × 36	61 × 91.4	2:3	Above a queen bed, or a three-seat sofa
30 × 40	76.2 × 101.6	3:4	A feature wall, or a tall stairwell

Landscape sizes

Horizontal designs run on their own ladder, and every one of them is a 3:2 crop. They go considerably wider than the portrait sizes. The largest, 54 × 36 in, is four and a half feet across, so measure the wall before choosing either of the top two.

Size (inches)	Centimetres	Works well
12 × 8	30.5 × 20.3	A shelf or a desk
18 × 12	45.7 × 30.5	Above a console
24 × 16	61 × 40.6	Above a desk or a headboard
30 × 20	76.2 × 50.8	Above a loveseat
36 × 24	91.4 × 61	Above a three-seat sofa
48 × 32	121.9 × 81.3	A wide feature wall
54 × 36	137.2 × 91.4	The widest wall in the house

A1 to A4

A sizes are the metric standard, and they exist here for anyone buying a ready-made frame in Europe or the UK. They are a slightly narrower shape than the inch sizes. Each one is exactly half of the size before it, so an A3 print fills half an A2 frame.

Size	Centimetres	Inches
A1	59.4 × 84.1	23.4 × 33.1
A2	42 × 59.4	16.5 × 23.4
A3	29.7 × 42	11.7 × 16.5
A4	21 × 29.7	8.3 × 11.7

What comes on paper, and what comes on canvas

Not every size is offered in every material. The smallest size and the A sizes are printed on paper only, because canvas does not stretch well at those dimensions. The size menu on each product page shows what is actually available for that design.

Design	Size	Materials
Portrait	8 × 12 in	Paper
Portrait	12 × 16 in to 30 × 40 in	Paper, matte canvas, framed canvas in white, black, espresso or natural
Portrait	A1 to A4	Paper
Landscape	12 × 8 in	Paper
Landscape	18 × 12 in to 36 × 24 in	Paper, matte canvas, framed canvas in white, black, espresso or natural
Landscape	48 × 32 in	Matte canvas and framed canvas
Landscape	54 × 36 in	Paper
Landscape	A1 to A4	Paper

The measurements on this page are the printed image. A floating frame adds a little to the outside measurement, so allow for that when you are fitting a print into a tight alcove.

How high to hang it

Hang to the eye, not to the ceiling. The centre of the artwork wants to sit 57 to 60 inches from the floor, which is where galleries hang and where most people look. A high ceiling does not change this. Raising a print because the wall is tall is the single most common hanging mistake, and it leaves the picture floating with nothing under it.

Over furniture the gap decides it instead. Leave 6 to 10 inches, or 15 to 25 cm, of clear wall between the top of the sofa and the bottom of the frame. Closer than that and the two read as one lump. Further and they stop belonging together.

Above a sofa

Aim to fill roughly two thirds of the width of the furniture below. On a standard three-seat sofa that is about 56 inches of artwork, which is wider than any single portrait print, so a pair or a set of three usually works better than one piece.

Sofa	Width	Start with
Loveseat	60 in · 152 cm	One 18 × 24 in, or a pair of 12 × 18 in
Three-seat sofa	84 in · 213 cm	One 24 × 36 in, a pair of 18 × 24 in, or three 16 × 24 in
Sectional	100 in · 254 cm and up	Three 20 × 30 in, or a pair of 24 × 36 in
Landscape design	Any of the above	One 36 × 24 in over a three-seat sofa

Above a bed

Match the artwork to the width of the bed rather than the width of the wall, and keep the set narrower than the headboard. Art that overhangs a bed on either side reads as a mistake even when the size is technically right.

Bed	Width	Start with
Twin	38 in · 97 cm	One 16 × 24 in, or A2
Full	54 in · 137 cm	One 20 × 30 in
Queen	60 in · 152 cm	One 24 × 36 in, or two 18 × 24 in
King	76 in · 193 cm	Two 24 × 36 in, or three 20 × 30 in

Desks, consoles and hallways

These are the narrow walls, and they punish oversizing. Over a desk, a 16 × 24 in print clears the top of a monitor without crowding it. Over a console, two 12 × 18 in prints hold the width better than one piece stranded in the middle. In a hallway, where nobody can stand far enough back to take in a large print, two 12 × 16 in stacked one above the other work harder than a single big one.

Hanging a set

Leave 2 to 3 inches, or 5 to 8 cm, between frames, and keep every gap the same. Treat the whole set as one rectangle: find the centre of that rectangle, and hang it at the same 57 to 60 inches a single print would want.

A pair is the easiest set to get right. Align the bottom edges and keep both prints the same size.
Three in a row fills a sofa wall properly. Use one subject and one style so the run reads as a series.
A grid of four is the calmest layout of all, and the least forgiving of uneven gaps.
Up a staircase, follow the slope rather than the steps. Keep the centre of each print the same distance above the stair nose.

Still deciding

Cut newspaper to the exact size, or run painter's tape around the outline, and leave it on the wall for a day. It costs nothing and it settles the question faster than any chart.

Caught between two sizes, take the larger one. Rooms almost always take more than they look like they will, and a print that is slightly too big still reads as deliberate. One that is too small never does.

Free US shipping

Free reprint if damaged

Secure checkout

Buy more, save more

Add 2 prints and save 7%. Add 3 and save 10%. The discount is applied automatically in the cart.

A Mammoth Cave National Park impasto oil painting, reproduced as a wide 3:2 print: a dark cave mouth opening beneath a mossy rock ledge in dense green forest, with a small trickle of water falling into a dark teal pool.

About the artwork

The cave mouth sits at the center under a horizontal ledge, framed by forest, with the pool across the bottom third. The brushwork here is softer and dappled, with modest texture. More than four hundred miles of the cave system have been mapped.

Why you'll love it

Deep green mystery. A dark entrance in a leafy forest.
Room-filling sizes. Eleven wide sizes, up to 54" x 36" on paper and 48" x 32" on canvas.
Texture without the upkeep. The brushwork is part of the image, so the print surface stays smooth and easy to dust.
Made to order. Printed after you buy, color-managed, never warehoused.

Sizes and materials

Paper — archival matte, rolled and unframed. Eleven sizes in all, A4 to A1 included: 12" x 8" to 54" x 36".
Matte canvas — stretched on a wooden bar, no glare, ready to hang. 18" x 12" to 48" x 32".
Framed canvas — solid wood floating frame in white, black, espresso or natural. 18" x 12" to 48" x 32".
Pigment-based archival inks, rated to resist fading for decades indoors.

Styling it at home

It suits a reading nook, a hallway or a study. Forest green and dark teal pair with dark wood and brass; an espresso frame suits it.

Shipping and care

Unframed prints ship rolled in a protective tube. Framed canvas arrives ready to hang. Keep prints out of direct sunlight to protect the color, and dust canvas with a dry, soft cloth.

Questions people ask

Which size works above a sofa? For a standard three-seat sofa, 36" x 24" or 48" x 32". The smaller sizes suit a console, a desk or a hallway.

Does it come framed? Paper prints ship unframed and fit standard frames. Choose a framed canvas if you would rather skip the framing shop.

How is this different from your other Mammoth Cave prints? This is the textured impasto version: a dark cave mouth in a green forest. The smoother classical oil painting is a separate design, as are the vintage travel poster, WPA, screen print, retro, mid-century, panoramic, watercolor, illustrated and landmark Mammoth Cave prints.

Is it a real oil painting? No. It is a high-resolution print of an oil painting; the brushwork is part of the image and the surface is smooth.

Print & materials

Every design is made to order on one of three materials:

Fine art paper — thick archival gallery-grade paper with a smooth matte finish, printed with fade-resistant pigment inks. The choice if you already own a frame.
Matte canvas — gallery-wrapped over a solid wood stretcher, ready to hang straight out of the box. No glass, no glare.
Framed canvas in white, black, espresso or natural wood — a slim solid-wood floating frame with the hanging hardware already fitted. Natural and espresso suit warm, timber-heavy rooms; white and black sit better in minimalist and monochrome spaces.

Sizes run from 8 x 12 inches up to large statement pieces, plus A4, A3, A2 and A1 for standard European frames. The exact sizes available for this design are listed in the Size menu above.

Production & shipping

Nothing is printed until you order, so each piece is made for you.

Printed and finished in 3–5 business days.
Delivery a further 4–8 business days — about 7–13 days in total.
Free shipping across the United States. Everywhere else is a flat $5 per order.

Paper prints ship rolled in a rigid tube. Canvas and framed canvas are boxed with corner guards.

Damage, defects & care

Every piece is printed for you after you order, so we cannot take a print back for a change of mind — please check the size and material first. Our Size Guide shows every size drawn to scale.

If it arrives damaged, misprinted or simply wrong, email us within 14 days with photos of the piece and the packaging. We reprint and reship it free, and there is nothing to send back.

Keep artwork out of direct sunlight. Wipe framed canvas with a dry, soft cloth. Handle paper prints by the edges until they are framed.

Complete your wall

Acadia National Park retro travel poster — a clifftop lighthouse above pink granite ledges and deep blue Atlantic water, Maine

Acadia National Park retro travel poster in a wood frame, leaning against a wall beside a stack of books and an armchair

Acadia National Park Lighthouse Retro Travel Wall Art

From $26.00

Yosemite National Park vintage WPA poster in a wood frame, Yosemite Falls plunging past granite cliffs and pines

Yosemite National Park WPA travel poster leaning on a sunlit living room wall beside a linen sofa

Yosemite National Park Waterfall WPA Style Wall Art

From $26.00

Theodore Roosevelt National Park vintage WPA poster in a wood frame, a lone bison grazing beneath striped badlands bluffs

Theodore Roosevelt National Park WPA travel poster leaning on a sunlit living room wall beside a linen sofa

Theodore Roosevelt National Park Bison WPA Style Wall Art

From $26.00

Arches National Park retro travel poster — Delicate Arch glowing deep red against towering desert clouds, Utah

Arches National Park retro travel poster in a wood frame, leaning against a wall beside a stack of books and an armchair

Arches National Park Delicate Arch Retro Travel Wall Art

From $26.00