Storage Sheds
Shed Accessories

8 x 2.5 ft Expansion Kit for Outdoor Storage Shed

Model: 6422

List Price: $269.99

Select Color: Desert Sand

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8 x 2.5 ft Expansion Kit for Outdoor Storage Shed

8 x 2.5 ft Expansion Kit for Outdoor Storage Shed


A full 30 in. deep section of our popular 8 ft. wide shed series! Kit includes roof panels, wall panels, floor panels and all hardware needed to make your 8 ft. wide Lifetime shed another 2 1/2 ft long. Note: If the 8 ft sheds are expanded more than 15 ft, it will void the warranty. (Not compatible with models 6413 or sheds that have a full-length ridge skylight.) Made in the USA from US and imported parts.

For more information about assembly, read the Owner's Manual Sample.

  • Model No. 6422
  • Desert Tan color
  • Steel-reinforced polyethylene construction
  • Rugged, steel trusses provide roof strength
  • Attractive appearance and design
  • Low maintenance, never needs painting
  • High-pitched roof, allows for quick rain and snow drainage
  • A Roomy 6 ft. 8 in. high at inside center
  • Slip-resistant, high-impact 3/4 in. thick polyethylene plastic floor resists oil, solvents, and stains
  • One small skylight
  • 10 yr limited warranty
  • Made in USA



Model 6422
Max Roof Load 23 psf
Max Wind Resistance 65 mph (104,6 kph)
Max Wind Resistance w/Wind Kit 94 mph (151,3 kph) (20 PSF)
Roof Support Trusses One (1) Steel A-Frame Truss

Assembly & Manuals


8' Shed Extension Kit 30" is rated 4.4 out of 5 by 8.
Rated 5 out of 5 by from Great shed extension This little item is a gem. We had gotten a lifetime shed a few years back and later realized we needed more space. This did the trick. We can't believe how much more space it provides
Date published: 2017-01-09
Rated 1 out of 5 by from Wouldn't Fit I carefully examined the specs and other customer reviews and thought this would easily extend my 8' shed. Unfortunately, the floor grooves were not the same as on the rest of my Lifetime Shed, and so the vertical panels would not fit properly with the others. Now I have to try and repack this monster and return it. I wish the extension was as workable as the shed itself, which is quite nice and highly recommended.
Date published: 2016-10-18
Rated 5 out of 5 by from Good quality product I am happy with lifetime products!!!I will recommend them!!!
Date published: 2016-08-28
Rated 5 out of 5 by from Wall to floor connection I have two Lifetime sheds. I used shims for the first assembly...helpful.On the second shed, I sprayed the wall/ floor tabs with WD40. Perfect, slipped right in.
Date published: 2016-08-20
Rated 5 out of 5 by from All in all, a good deal. While the price isn't cheap, keep in mind the shipping is free. The package isn't small & is delivered by a semi truck. It can also be a bit tricky fitting new panels to an older shed. Tip: use shims to get the floor snapped into place.
Date published: 2016-04-07
Rated 5 out of 5 by from Great Product! I bought our original 8 X 5 building 7 years ago and decided to buy two expansion kits for it. They went together beautifully, no problems at all. Glad we did it...our new storage shed is now 8 X 10. It really looks nice!
Date published: 2015-02-21
Rated 4 out of 5 by from LOOKS GREAT !!! the expansion looks great from the outside but the product was missing the wall supports and the floor was completely different than the original floor pattern, overall the product is good. I called about the missing parts (wall supports) and they shipped immediately, I received them in a couple of days.
Date published: 2014-02-20
Rated 5 out of 5 by from Great for expanding Bottom Line:Yes, I would recommend this to a friend. I recently bought a 8 x 12.5 shed and one of the reasons I decided to purchase the Lifetime shed, was you can purchase these expansion kits to add more space. Directions weren't that difficult but you have to dismantle the back two sections of the roof and the last back wall panels, then slide the back section away from the front before you can add on. Makes sense structure wise but a bit of a hassle. After that installation was easy. Fits exactly into the original shed. 2 1/2 ft made a huge difference in space. Took about 5 hours to do this.
Date published: 2013-06-21
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Ask a Question

hi are the roof trusses the same as shed 6446 with the a frame truss as picture looks like its just got to metal bars either side not the bar holding them together making it a, A frame, also looking at the 6446 shed 15x8 could i purchase 4 of these kits?

Asked by: george
Yes the trusses used on this extension kit do match those on our sheds and do use the A-frame design. Extending this shed past the 15' W measurement will void the warranty on the shed.
Answered by: Lifetime Products
Date published: 2016-09-26

will the extension kit fit model #6001, and will the color match?

Asked by: fishaddict
Yes, this extension kit would be compatible with shed model 60001.
Answered by: Lifetime Products
Date published: 2016-03-01

Will this extension kit fit the 6446 model? Please let me know. I want to purchase the 6446 immediately.

Asked by: Kirby
Yes it will fit on the 6446 model.
Answered by: Steve1
Date published: 2015-07-07

Hello,  I am interested in purchasing this extension for 60079.  I have heard that this can in fact be done ( no full ridge skylight) however it voids the warranty to go beyond 15 ft.  As long as it fits I am ok without the warranty you make great produc

Asked by: rknelson
Ton confirm compatability, please contact Lifetime Customer Service at 1-800-225-3865.
Answered by: LifetimeProducts
Date published: 2015-02-23


Asked by: ALFRED
This is the same color. All of our sheds and extension kits are desert tan and dark brown.
Answered by: LifetimeProducts
Date published: 2015-02-23

If I fully assemble the 8 x 10 foot shed and decide later that I want to incorporate the extension, is it possible do that? How difficult would it be to add the extension post-assembly?

Asked by: JD_OP
Yes it is possible, but if you are already thinking about doing it I would suggest to do it all at once. If done later then the back 2.5’ of the shed would need to be removed then reattached after the extension kit is in place. Another factor is that depending how long afterwards you decide to purchase an extension kit the shed itself may have gone through a couple of thermal cycles which may reduce the shed ¼ of an inch. This may cause alignment issues mixing old vs new parts.
Answered by: LifetimeProducts
Date published: 2015-02-11

Can you please confirm that this extension kit is compatible with Lifetime 10X8 Backyard Storage Shed w/ Double Doors Model # 60001

Asked by: andmilair
This extension kit is compatible with model 60001 up to 15 ft long.
Answered by: LifetimeProducts
Date published: 2015-01-12

Do you offer shipping to Ontario Canada and how much?

Asked by: Brad1
Hi Brad1,Thank you for your interest in our Shed Expansion Kit - for a shipping estimate, we'll need you to call into our Sales Department and they can help get a quote prepared for you. You can reach us at 1-800-424-3865 or email buy@lifetime.com. We hope to hear from you soon!
Answered by: LifetimeProducts
Date published: 2015-01-05
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