Airfloat Systems



Fast Facts

StrongBox is the original, made in the USA, reusable art shipper. Loved by artists and art-lovers alike, StrongBox provides unsurpassed protection for your valued artwork.

  • Double wall carton construction
  • Three layers of shock-absorbing foam
  • Tough puncture guard liners
  • Integrated handle on many models
  • Approved by all major air and ground carriers
  • Quick and simple to use - no mess, no tools
  • First time using a StrongBox? Check out our step-by-step guide and video.

StrongBox | Starting at $33.00

The choice of museums and fine art galleries worldwide.


StrongBox is the original, made in the USA, reusable art shipper. Loved by artists and art-lovers alike, StrongBox provides unsurpassed protection for your valued artwork.

  • Double wall carton construction
  • Three layers of shock-absorbing foam
  • Tough puncture guard liners
  • Integrated handle on many models
  • Approved by all major air and ground carriers
  • Quick and simple to use - no mess, no tools
  • First time using a StrongBox? Check out our step-by-step guide and video.
  View All Sizes & Specifications
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Lined or Unlined?

Made of tough ABS plastic, our puncture guard liner provides the puncture resistance of 3/8" plywood, but without the weight of a wooden shipping crate. Lined StrongBoxes are our best selling product.



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Enter frame size (in inches) to show only StrongBox™ sizes appropriate for your artwork.

For the best sizing results, we recommend entering all 3 dimensions (width x length x thickness).

To Filter by Artwork Size

Enter the size of your framed artwork to show only appropriately sized StrongBoxes.

  • Width: shortest side (e.g., on a 24" x 36" x 2" frame, width is 24")
  • Length: longest side (e.g 36" in the above example)
  • Thickness: the depth of the artwork/frame (eg 2" in the above example)

Size up for even more protection and versatility

If you follow our Maximum Frame Size recommendation, your artwork will be extremely well protected from jarring and bouncing while in transit.
However, you may opt for a slightly larger StrongBox than our guide recommends if you are expecting particularly rough or long transit experience – or if you want the flexibility to reuse your StrongBox to transport a larger piece.

StrongBox™ Comparison Chart

Have questions? Please Call +1 (800) 445-2580! or email us: sales@airfloatsystems.com

Item NumberMax Frame SizeInterior DimensionsBoardHandlePuncture
Guard Liner
WeightPrice
1722U14 x 19 x 217 x 22.5 x 3350LB DW3 lbs$33.00
1722L14 x 19 x 217 x 22.5 x 3350LB DW4 lbs$39.00
2227U19 x 24 x 222 x 27.375 x 3350LB DW4 lbs$41.00
2227L19 x 24 x 222 x 27.375 x 3350LB DW6 lbs$48.00
2530U22 x 27 x 325 x 30 x 4350LB DW6 lbs$52.00
2329U20 x 26 x 423 x 29 x 5500LB DW7 lbs$59.00
3136U28 x 33 x 231 x 36 x 3350LB DW7 lbs$64.00
2530L22 x 27 x 325 x 30 x 4350LB DW8 lbs$69.50
3140U28 x 37 x 331 x 40 x 4350LB DW9 lbs$78.00
2329L20 x 26 x 423 x 29 x 5500LB DW10 lbs$79.50
2836U25 x 33 x 428 x 36 x 5500LB DW11 lbs$80.00
2530SU22 x 27 x 625 x 30 x 8500LB DW13 lbs$86.00
3136L28 x 33 x 231 x 36 x 3350LB DW10 lbs$86.00
3542U32 x 39 x 335 x 42 x 4350LB DW10 lbs$89.00
3140L28 x 37 x 331 x 40 x 4350LB DW12 lbs$93.00
2836L25 x 33 x 428 x 36 x 5500LB DW14 lbs$96.00
2530SL22 x 27 x 625 x 30 x 8500LB DW16 lbs$103.00
3449U31 x 46 x 334 x 49 x 5350LB DW12 lbs$106.00
3542L32 x 39 x 335 x 42 x 4350LB DW14 lbs$111.00
3442U31 x 39 x 3.534 x 42 x 4.5500LB DW14 lbs$113.00
4343U40 x 40 x 343 x 43 x 4500LB DW13 lbs$113.00
3847U35 x 44 x 338 x 47 x 4350LB DW12 lbs$114.00
3442L31 x 39 x 3.534 x 42 x 4.5500LB DW17 lbs$133.00
3449L31 x 46 x 334 x 49 x 5350LB DW16 lbs$136.00
3762U34 x 59 x 437 x 62 x 5500LB DW25 lbs$138.00
3847L35 x 44 x 338 x 47 x 4350LB DW16 lbs$142.00
4343L40 x 40 x 343 x 43 x 4500LB DW18 lbs$144.00
5050U47 x 47 x 350 x 50 x 4500LB DW23 lbs$146.00
3542SU32 x 39 x 635 x 42 x 8500LB DW22 lbs$149.00
4353U40 x 50 x 343 x 53 x 4500LB DW21 lbs$150.00
4058U35 x 55 x 4.538 x 58 x 5.5500LB DW24 lbs$166.00
4045U37 x 42 x 640 x 45 x 7.75500LB DW19 lbs$171.00
3542SL32 x 39 x 635 x 42 x 8500LB DW26 lbs$173.00
4353L40 x 50 x 343 x 53 x 4500LB DW27 lbs$174.00
3762L34 x 59 x 437 x 62 x 5500LB DW30 lbs$176.00
5166U48 x 63 x 351 x 66 x 4500LB DW31 lbs$180.00 Please call for availability
4558U42 x 55 x 4.545 x 58 x 5.5500LB DW27 lbs$186.00
5050L47 x 47 x 350 x 50 x 4500LB DW28 lbs$189.00
4058L35 x 55 x 4.538 x 58 x 5.5500LB DW30 lbs$202.00
4045L37 x 42 x 640 x 45 x 7.75500LB DW23 lbs$212.00
5166L48 x 63 x 351 x 66 x 4500LB DW39 lbs$229.50 Please call for availability
4558L42 x 55 x 4.545 x 58 x 5.5500LB DW34 lbs$232.00
6262U59 x 59 x 462 x 62 x 5500LB DW55 lbs$244.00 Please call for availability
6262L59 x 59 x 462 x 62 x 5500LB DW58 lbs$299.50 Please call for availability

Custom Sizes Also Available

Looking for a custom size? We can tailor-make a custom size for a perfect fit.

Request Custom

ItemMax Frame SizePrice
1722U14 x 19 x 2
$33.00
1722L14 x 19 x 2
$39.00
2227U19 x 24 x 2
$41.00
2227L19 x 24 x 2
$48.00
2530U22 x 27 x 3
$52.00
2329U20 x 26 x 4
$59.00
3136U28 x 33 x 2
$64.00
2530L22 x 27 x 3
$69.50
3140U28 x 37 x 3
$78.00
2329L20 x 26 x 4
$79.50
2836U25 x 33 x 4
$80.00
2530SU22 x 27 x 6
$86.00
3136L28 x 33 x 2
$86.00
3542U32 x 39 x 3
$89.00
3140L28 x 37 x 3
$93.00
2836L25 x 33 x 4
$96.00
2530SL22 x 27 x 6
$103.00
3449U31 x 46 x 3
$106.00
3542L32 x 39 x 3
$111.00
3442U31 x 39 x 3.5
$113.00
4343U40 x 40 x 3
$113.00
3847U35 x 44 x 3
$114.00
3442L31 x 39 x 3.5
$133.00
3449L31 x 46 x 3
$136.00
3762U34 x 59 x 4
$138.00
3847L35 x 44 x 3
$142.00
4343L40 x 40 x 3
$144.00
5050U47 x 47 x 3
$146.00
3542SU32 x 39 x 6
$149.00
4353U40 x 50 x 3
$150.00
4058U35 x 55 x 4.5
$166.00
4045U37 x 42 x 6
$171.00
3542SL32 x 39 x 6
$173.00
4353L40 x 50 x 3
$174.00
3762L34 x 59 x 4
$176.00
5166U48 x 63 x 3
$180.00 Please call for availability!
4558U42 x 55 x 4.5
$186.00
5050L47 x 47 x 3
$189.00
4058L35 x 55 x 4.5
$202.00
4045L37 x 42 x 6
$212.00
5166L48 x 63 x 3
$229.50 Please call for availability!
4558L42 x 55 x 4.5
$232.00
6262U59 x 59 x 4
$244.00 Please call for availability!
6262L59 x 59 x 4
$299.50 Please call for availability!

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500 lb box cert2

Premium Quality Carton

Mullen-Rated Box Maker's Certificate seal is your guarantee of quality and strength.

Double-wall corrugated board construction approved by FedEx and UPS for high durability and resistance to damage.

Strongbox product feature 3 layers foam

Three Layers of Shock-Absorbing Foam

Top and bottom layers of convoluted (egg shell) foam suspend your artwork as it rests on the peaks. This suspension effect diverts the shock away from the pressure points of the frame.

A middle layer of customizable perforated “perf-pack” foam molds to the edges of your artwork for a perfect fit.

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Puncture guard liner

Puncture Guard Liners

Lined Strongboxes further protect your artwork with two layers of tough ABS plastic that provide puncture resistance equivalent to 3/8" plywood but without the weight.

Strongbox carry handle product feature

Integrated Handle

100 lb carrying handle integrated into many models for convenient carrying.

StrongBox Sizes

Airfloat manufactures more than 20 stock StrongBox sizes. We also manufacture custom sized strongboxes by request.

Request Custom

FAQs

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Measuring a Painting
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Dee Gevik Tunseth painting in Strong Box
Strong Box in a gallery
Airfloat Strong Box Pack Gallery 3
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Lori Putnam Painting in Strong Box

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