FAST 2K™ DECK POST ANCHOR
Fast 2K™ Deck Post Anchor
Set Load-Bearing Posts Fast with Deck Post Anchors That Last
Fast 2K™ Deck Post Anchor is the go-to selection for any type of post-setting project. It’s an ideal solution for installing deck post anchors quickly and reliably. It’s cleaner, easier, and faster than concrete, yet strong enough to get the job done!
How Fast 2K™ Deck Post Anchor Works
Installing posts for decks with Fast 2K™ is quick and straightforward. It’s building code compliant and suitable for pole barns, carports, and even standard fence posts. Everything you need to set the post comes right in this little 2.5 lbs. bag (no extras required: hardware, saddle, post base). Set the post directly in the composite.
Within minutes you will successfully set your post in the ground. Within a half hour you are ready to start building on the post.
- For load-bearing and non-load bearing projects
- Complies with ICC, and meets requirements of the IBC, IRC and NRC
- Lightweight and convenient
- No water required
- Mix in 30 seconds / Set in 3-5 minutes / Build in 15-30 minutes
- Works with all post types (wood, metal, vinyl, plastic)
- Water-resistant when fully cured
- Can be used in below freezing temperatures
Why Choose Foam for Setting Deck Posts?
Unlike traditional methods, using foam for setting deck posts doesn’t require water, heavy equipment, or long cure times. Fast 2K™ expands rapidly and hardens to form a secure base, making it ideal for anyone installing post for decks with less effort and more reliability.
DOES NOT SHRINK LIKE OTHER PRODUCTS IN THE MARKET
WORKS IN WINTER

Does not require water
No water is required in the mixing process making Fast 2KTM more convenient than concrete for setting deck and fence posts.
FINISHING YOUR PROJECT

Cut away unwanted product
The finished look of your post installation job is important. When Fast 2KTM is dry you can cut away unwanted product material with a handsaw or utility knife.
NEED HELP PLANNING YOUR PROJECT?
Use our Deck Post Anchor Usage Calculator to determine how many kits you’ll need.
Watch our Post Foam Tutorial Videos for step-by-step guidance on how to use Fast 2K™ effectively.
Trusted for Professional-Grade Results
Fast 2K™ Deck Post Anchor is built on the same trusted technology used to set utility poles for over 20 years. It’s been tested and approved for building code compliance, making it a go-to choice for contractors, inspectors, and builders. Whether you’re anchoring structural supports or installing post anchors for decks, Fast 2K™ delivers reliable performance without the mess or weight of concrete.
Building Code Compliance
Fast 2KTM Deck Post Anchor has been third party tested and was found to perform as well as concrete for load bearing applications. Fast 2KTM Deck Post Anchor has been found to comply with Section 1807.3 of the International Building Code.
AVAILABLE PACKAGING
INDIVIDUAL KITS (as pictured) 33.8 fl. oz. (1L)
Case contains 10 x 33.8 fl oz (1L).
Each kit fills 0.5 cu ft space
Other sizes available: Contact H.B. Fuller for more details on how to purchase below sizing:
CONTRACTOR CASE of 12 x 33.8 fl.oz. (1L) divided bags (bulk packaged).
Each kit fills 0.5 cu ft space
RECENT ARTICLES
REVIEWS – HERE’S WHAT OUR CUSTOMERS HAVE TO SAY
Fast 2K Fence Post Backfill is super lightweight and forms a waterproof barrier that extends the life of wooden posts. This foam is also strong enough to resist lateral force of more than 500 lbs. and has the compression strength three to four times that of tamped soil. And it doesn't need to be mixed with water. You just pull the clip that separates the two components, mix the bag for 30 seconds and pour the liquid down the hole. The post/pole will be ready for use in just 15 minutes!
The Family Handyman
I just wanted to reach out and say Thank You. I had seen your product on YouTube before I seen it at Menards. I wanted to try it as I thought that the foam may help absorb energy from impact. I used your post foam, a wood post, and a good solid steel mailbox. As of today, just a few months in, my mailbox has eaten it’s THIRD vehicle mirror and the combination is holding up much better than I assumed. The foam and the wood compliment each other excellently. Thank you and God Bless!
Joe S. Scottsburg, IN
We were impressed how easy and fast and the posts are sturdy and we absolutely are using it again for more projects . We loved the simplicity and fastness and the post held strong as cement ones we put in. Thank you and God Bless!
Ron K. - Two Rivers, WI
Last summer while I was away on business, we had a wicked wind storm in Airdrie, AB and it blew away part of our fence. I told [my neighbor] one morning that I will take care of replacing the fence post myself. By the time they got back from work, I already had all the posts up and was starting on the fence. I showed him the fast 2k product that I had used and was pretty surprised myself on the efficacy and strength of said product.
Oliver M. - Aridrie, Alberta
We were impressed how easy and fast and the posts are sturdy and we absolutely are using it again for more projects . We loved the simplicity and fastness and the post held strong as cement ones we put in. Thank you and God Bless!
Mike B. - Illinois
We recently built a privacy fence in our backyard and both my husband and myself were not looking forward to hauling a ton of concrete/wheelbarrowing it etc to the site of the project to set the posts. We came across a product at Lowes called Fast 2K which looked unbelievably easy. We were thrilled, this product was so easy to use and with the bonus of no clean up etc. A bonus when tackling home reno projects yourself.
Debbie W. - Barrie, ON
I love my concrete but this stuff is awesome. I had around 30 4×6 posts to set for a couple fences I was building around the Jump Caddy shops. So I made up some quick support to hold a post perfectly straight and level and poured in a bag. While I worked on the next post the first one had already set so I was able to just grab the same supports and move them with me. In the past I would have spent a long day getting all the posts set perfect and then an even longer time mixing cement and pouring all of the holes hoping that something didn’t shift.
Rod D. - Jump Caddy Equestrian and Custom Wagons
We have recently used Fast 2K to install two 45” wide signs and another one 68” wide with two posts each. We were impressed with how quick Fast 2K sets without the mess of concrete. The signs we did were replacements, so we had to remove the original signs first and the holes ended up being pretty wide. So we poured one bag of Fast 2K in one hole, then poured another bag in the second one, topped up the first one after a couple of minutes, topped up the second hole and so on. It was so much faster than using concrete that we finished the job in almost half the time.
Derrick M. - Island Woodworks Plus Plus
My son’s fence built in two and a half days. Everybody wants to know how it got built that fast, We did it with Fast 2K two part foam. Dug the holes and set the poles before lunch and after lunch started put 1X6 cedar on. Finished with building the gate on Sunday.
Doug Y. - Scott's Lumber















