No digging. No waiting. Just place & build
Build Shed Foundations Without Concrete
Perfect for garden sheds, storage sheds & outdoor buildings
Perfect for garden sheds, storage sheds & outdoor buildings
✔ No concrete slab required
✔ No digging or excavation
✔ Works on compacted gravel
✔ Supports heavy sheds (1700 lbs per block)
✔ Ideal for uneven ground
Engineered for strength. Trusted in 150,000+ builds.
No digging. No slab. No waiting.
Free Shipping USA Wide.
Available online & at Lowe’s nationwide
✔ No concrete slab required
✔ No digging or excavation
✔ Works on compacted gravel
✔ Supports heavy sheds (1700 lbs per block)
✔ Ideal for uneven ground

Build smarter. Build lighter.
Build with confidence.
✔ 26x lighter than concrete
✔ Supports up to 1,700 lbs per block (break tested to 11,000 lbs)
✔ No digging. No waiting. No concrete.
Limited Spring Build Sale
24 Pack - $259 ($10.78 per block)
Build smarter. Build lighter.
Build with confidence.
Free Shipping USA Wide.
Available online & at Lowe’s nationwide
Free Shipping USA Wide.
Available online & at Lowe’s nationwide
✔ 26x lighter than concrete
✔ Supports up to 1,700 lbs per block
✔ Break-tested to 11,000 lbs
✔ Made in the USA from 100% recycled materials
Build smarter. Build lighter. Build with confidence.
Limited Spring Build Sale - 10% Off
24 Pack - $259 ($10.78 per block)
Free Shipping USA Wide. Available online & at Lowe’s nationwide
Free Shipping USA Wide.
Available online & at Lowe’s nationwide
Build smarter. Build lighter.
Build with confidence.
✔ No concrete slab required
✔ No digging or excavation
✔ Works on compacted gravel
✔ Supports heavy sheds (1700 lbs per block)
✔ Ideal for uneven ground
Engineered for strength. Trusted in 150,000+ builds.
No digging. No slab. No waiting.
Free Shipping USA Wide.
Available online & at Lowe’s nationwide
ICC Certified
150K+ Real Builds
25 year warranty
MADE in USA
ICC Certified
150K+ Real Builds
25 year warranty
MADE in USA
No digging. No waiting. Just place & build
Build Shed Foundations Without Concrete
Perfect for garden sheds, storage sheds & outdoor buildings
Perfect for garden sheds, storage sheds & outdoor buildings
✔ No concrete slab required
✔ No digging or excavation
✔ Works on compacted gravel
✔ Supports heavy sheds (1700 lbs per block)
✔ Ideal for uneven ground
Engineered for strength. Trusted in 150,000+ builds. No digging. No slab. No waiting.

Build smarter. Build lighter.
Build with confidence.
Perfect for garden sheds, storage sheds & outdoor buildings
✔ No concrete slab required
✔ No digging or excavation
✔ Works on compacted gravel
✔ Supports heavy sheds (1700 lbs per block)
✔ Ideal for uneven ground
Engineered for strength. Trusted in 150,000+ builds.
No digging. No slab. No waiting.
Free Shipping USA Wide.
Available online & at Lowe’s nationwide
✔ 26x lighter than concrete
✔ Supports up to 1,700 lbs per block (break tested to 11,000 lbs)
✔ No digging. No waiting. No concrete.
Limited Spring Build Sale
24 Pack - $259 ($10.78 per block)
Build smarter. Build lighter.
Build with confidence.
Free Shipping USA Wide.
Available online & at Lowe’s nationwide
Free Shipping USA Wide.
Available online & at Lowe’s nationwide
✔ 26x lighter than concrete
✔ Supports up to 1,700 lbs per block
✔ Break-tested to 11,000 lbs
✔ Made in the USA from 100% recycled materials
Build smarter. Build lighter. Build with confidence.
Limited Spring Build Sale - 10% Off
24 Pack - $259 ($10.78 per block)
Free Shipping USA Wide. Available online & at Lowe’s nationwide
Free Shipping USA Wide.
Available online & at Lowe’s nationwide
Build smarter. Build lighter.
Build with confidence.
✔ No concrete slab required
✔ No digging or excavation
✔ Works on compacted gravel
✔ Supports heavy sheds (1700 lbs per block)
✔ Ideal for uneven ground
Engineered for strength. Trusted in 150,000+ builds.
No digging. No slab. No waiting.
Free Shipping USA Wide.
Available online & at Lowe’s nationwide
ICC Certified
150K+ Real Builds
25 year warranty
MADE in USA
ICC Certified
150K+ Real Builds
25 year warranty
MADE in USA
Not sure how many Shed Blocks you need?
Shed Block Calculator
Inspector-Ready Documentation
TuffBlock has been assessed by the International Code Council and is shown to be compliant with the following:
2021 & 2018 International Building Code (IBC)
2021 & 2018 International Residential Code (IRC)
Along with a range of specific city building codes:
2020 City of Los Angeles Building Code (LABC)
2020 City of Los Angeles Building Code (LARC)
2019 California Building Code (CBC)
2019 California Residential Code (CRC)
2020 Florida Building Code - Building
2020 Florida Building Code - Residential
Compliance may vary by local jurisdiction. Always check with your building authority.

How to Build a Shed Base in 3 Simple Steps
Perfect for garden sheds, storage sheds, workshop sheds and uneven ground builds.
1PREPARE BASE
Clear vegetation and level the area. Compact the ground and add a gravel base where needed to create a stable foundation for your shed.
2PLACE & LEVEL TUFFBLOCKS
Position TuffBlocks on your prepared base and adjust each point to create a level foundation - even on uneven or sloped ground.
3BUILD FRAME & INSTALL SUBFLOOR
Build your shed frame on top of the leveled TuffBlocks, then install the subfloor to create a strong, square, and ready-to-build foundation.
Availlable Online & In-Store

Available Online
& In-Store at

4.9/5 Rated by 400+ Builders & DIYers
Real-World Shed Foundation Comparison
Based on a typical shed base (8–12 supports)


*TuffBlock compared to concrete footings
Built to Handle Real Job Site Conditions
Frost heave?
TuffBlocks sit on a compacted gravel base, allowing natural ground movement without cracking like concrete footings.
✔ Used successfully in freeze-thaw climates across North America
Sinking?
The wide base spreads load evenly. Installed on compacted gravel, TuffBlocks create a stable, long-term foundation.
✔ Supports up to 1,700 lbs per block
High Wind?
In high-wind areas, builders often secure structures with earth anchors or combine TuffBlocks with in-ground footings for additional stability.
Code Compliance?
TuffBlocks are ICC-ES certified and used in thousands of residential builds across the U.S.
✔ Always check local building guidelines before starting your project
✔ Built for real-world conditions
✔ Trusted across North America
Watch How to Build a Shed Base in Under a Day
Over 150,000 builds worldwide use TuffBlock foundations.

Enter your project size to instantly estimate how many TuffBlocks you need.
✔ Based on standard joist spacing (16" OC)
✔ Works for sheds, platforms & floating decks
✔ No digging or concrete required
| Project Length (ft) | Project Width (ft) | Project Area Calculator (sq ft) | Estimated TuffBlocks |
|---|---|---|---|
| 8 | 12 | 96 | 24 |
| 20 | 10 | 200 | 42 |
| 20 | 12 | 240 | 42 |
| 30 | 10 | 300 | 60 |
| 20 | 16 | 320 | 56 |
| 35 | 10 | 350 | 72 |
Engineered smart. Built tougher.
As seen on leading TV networks and building influencers.






Built for the Jobsite
Forget hauling heavy blocks or waiting days for concrete to cure.
With TuffBlock, you can:
Cut install times in half — crews can frame the same day.
Keep overheads low — reduce transport costs and back-breaking labor.
Work anywhere — on uneven soil, turf, or pavers with a little leveling.
Deliver lasting builds — backed by a rock-solid 25-year warranty.
- Cut install times in half — crews can frame the same day.
- Keep overhead low — reduce transport costs and back-breaking labor.
- Work anywhere — on uneven soil, turf, or pavers with a little leveling.
- Deliver lasting builds — backed by a rock-solid 25-year warranty.
Don’t Risk Your Build on Unverified Deck Blocks

TuffBlock
✔ Load rated and tested
✔ Proven with 150K+ real builds & zero warranty claims
✔ Break tested under high stress
✔ Manufactured using structural-grade polymer
✔ UV-stabilized for outdoor durability
✔ Designed with weight distribution geometry
✔ 25 year warranty
✔ Made in the USA
Unverified Imitators
✘ Unverified overseas imports
✘ Do not publish verified load ratings
✘ Do not provide break testing data
✘ No certification
✘ Use unknown material composition
✘ Offer limited traceability or warranty
✔ Faster install. Less labour. Better results
Frequently asked Questions
How to Build Easy With TuffBlocks
Drop

Place your TuffBlocks directly onto firm, level ground — grass, dirt, gravel, or even concrete. No need to dig holes or pour footings. Just space them where your posts or joists will go.
Level

Use a spirit level to make minor ground adjustments if needed. TuffBlocks work best on flat, stable surfaces — and minimal prep is all it takes. Tip: Use packers such as crusher dust underneath for extra stability and longevity.
Build

Drop in your 3.5" or 4" posts or 1½" - 2" Joists & Bearers — From here, just start building your deck, shed base, stairs, or even tiny home floor.

Australia Wide Shipping
We deliver across Australia with Free Shipping.
Our Guarantee
We're so confident in our products and service, we offer a 25 year warranty on your TuffBlocks
Support
We're building a smarter building community. Contact Us anytime, we would love to help!







