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Internet # 323939386

Model # K-64403852213

Store SKU # 1008986572

Apex Freestanding 4 ft. x 12 ft. x 12 ft. Brazilian Teak PVC Deck 3-Step Stair Kit with Steel Framing & Aluminum Railing

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  • Deck kit design allows picture frame board installation
  • High-quality, low-maintenance steel framing adds durability
  • Essentials eliminate confusion about material specifications
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Product Details

About This Product

FORTRESS Building Products Deck Kits are designed to provide high-quality, durable and low-maintenance steel framing, decking and railing in an all-in-1 system. This easy to buy deck kit provides peace of mind with a brand that you trust and best-in-class warranties. Each kit includes the product, hardware and components needed to build a 12 ft. x 12 ft. deck. Cutting and assembly of the product is required. Refer to the installation guide for details and be sure to check local building codes prior to purchasing. This freestanding deck kit comes with one 10 ft. framing post that is to be cut into 4 shorter posts as required to accommodate varying installation heights. Varying Stair Kit heights available.


  • Includes: Evolution black sand steel deck framing, Apex brazilian teak brown PVC decking, Al13 plus black sand aluminum railing, hulk fasteners and hardware components to build a complete 12 ft. x 12 ft. deck and and 3-step stair kit
  • Eliminates time and confusion of material specification process by providing essentially everything needed to build your dream deck
  • Deck kit package pricing saves money as compared to buying components separately.
  • Freestanding deck kit comes with one 10 ft. framing post that is to be cut into 4 shorter posts as required to accommodate varying installation heights, maximum deck height on level ground is 48 in. and minimum is 28 in.
  • Stairs: 3-step stair kit intended for use when rise from top of deck surface to landing is 30 in. or less, 3-step stair kit does not contain railing panels, pending required stair height, some step assemblies included in kit may not be used
  • Warranty: evolution frame - 25-years, apex PVC decking 50-years residential, Al13 plus - limited lifetime
  • Evolution steel framing: invulnerable to rotting, warping and insect damage, class a fire rating and builds flat, stays flat
  • Apex PVC decking: low-maintenance, no sanding or staining, high slip-resistance and wood-like natural look
  • Al13 plus aluminum railing: low-maintenance, pre-welded panels and patented bracket system for easy installation
  • Deck kit design features preferable picture frame board installation providing for superior finished appearance
  • Residential use only
  • Concrete and concrete anchors not included
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 323939386

Model # K-64403852213

Store SKU # 1008986572



Actual Product Length (ft.)

12 ft

Actual Product Thickness (in.)

48 in

Actual Product Width (in.)

144 in

Approximate Weight (lb)


Nominal Product Length (ft.)

12 ft

Nominal Product Thickness (in.)


Nominal Product Width (in.)

144 in


Color Family



Brazilian Teak Brown

Edge Type



UV Protected, Water Resistant



Total Linear Feet Covered

12 ft

Warranty / Certifications

Manufacturer Warranty

Evolution Frame - 25 Years, Apex PVC Decking - 50 Years Residential, Al13 PLUS - Limited Lifetime

Questions & Answers

Q:Footings are shown in the installation instructions. However, there is no mention of what size footings are required. Could you provide specifics regarding the footings?
by|Aug 8, 2023
1 Answer
Answer This Question

A:  Footings, also called "piers" to support the posts of the Fortress 12' x 12' deck kit generally can be standard size. They are normally poured cement, with most people using cardboard sleeves to pour into which sold at home improvement retailers which come in standard sizes (8", 10" etc...). Fortress does not specify size for piers as the need could vary based on soil type/moisture (in extremely sandy soil or constant high moisture larger piers could be needed) as well as potentially local code. If you have normal soil conditions and no code requirement standard size piers should be fine. Thanks

by|Aug 25, 2023
    Q:Can I install this deck myself on relatively level ground? What does "fabrication required" mean?
    by|Jul 11, 2023
    1 Answer
    Answer This Question

    A:  Yes, these complete deck kits can be installed relatively easily on flat and even sloped ground. Fortress complete deck kits come with specific deck kit instructions which makes installation instructions easier to follow than when deck components are purchased separately (everything is designed to go together and the instructions have been written with this specific intent in mind). Fabrication simply means there will be some measuring and cutting needed These are simple measurements and cuts, and the information is clearly explained in the instructions. The deck kits are designed to make installation easy while providing for a very well finished/professional look after installation. With this, less cuts/fabrication are needed as compared to buying bulk materials separately. Thanks

    by|Jul 11, 2023
      Q:does the material get hot in the summer
      by|May 11, 2023
      1 Answer
      Answer This Question

      A:  Thank you for the inquiry, Apex decking retains very little heat.

      by|Jun 8, 2023
        Q:what holds decking to joists
        by|Feb 23, 2023
        1 Answer
        Answer This Question

        A:  The grooved deck boards are attached to the joists using the provided hidden fasteners for most of the deck. For the perimeter of the deck square deck boards are attached using provided screws to provide for a professional "picture frame" design.

        by|May 7, 2023
          1 found this answer helpful
          Showing 1-4 of 4

          Customer Reviews

          5 out of 5

          • 5 out of 3 reviews
          • 100% recommend this product
          Filter by:
          Showing 1-3 of 3 reviews
          Durable, beautiful, and comes with everything you need.
          The material is very durable. The pieces are solid. My mother signed for it while I was at work. It started raining before I got home to cover it. The instructions got wet because they were in envelopes and not plastic. I love the look and color of the brazilian teak brown decking. I noticed a couple of reviews that did not show the deck setup. I wanted to wait before I left a review. I wanted to have it installed so I can show pictures of it set up. I'm still waiting on the replacement instruction booklets, though. This item is on my shipped list and keeps asking for a review, so I am leaving this review for now. I will update this review once I have it fully assembled and set up. I will be building this under my 10' x 10' gazebo so I can get it off of the ground. The deck came with a lot of well packaged hardware. All of the material feels very durable, which is why they have such a nice warranty on it. Like I said, I will try to update this review when I receive the replacement installation guides. I can't wait, it's going to be beautiful.
          • Recommended
          All-in-One Prefab Freestanding Deck
          The FORTRESS Apex Freestanding Deck Kit makes installing a deck much easier. Pretty much, everything is included. Just need to dig, and pour, the footings (not included) and cut the posts to length (one 10' included). Deliver was complicated, because it arrived on a very long palette. The Driver had a hard time getting it out of the truck and on to the lift gate. The PVC decking has a raised 'wood grain' pattern (see pic). The graining looks nice and makes it less slippery. The color, Brazilian Teak Brown, is luxurious. Being PVC, it is relatively maintence free. No need to stain it, or re-stain it, every few years. Might have to power wash it, to remove mold/staining (if you install it in a humid shady area)? The decking has a groove on both sides, that allows it to be clipped to the framing. The clips are hidden. The steel is all powder coated, inhibiting any rust. The rails are all Aluminum; totally maintence free. The beams are welded (see pic). Everything is straight. No warped, or crooked, boards to deal with. I normally install things before reviewing, but since I need Permits (for anything over 10' x 10'), need drawings and have to go in front of my Town Board, it will be a few weeks before I get approval and it installed. I plan to install it using a foundation of an old Barn; which will raise up one side and give a nice view of the property. So, glad I got it and look forward to years of carefree enjoyment!
          • Recommended
          Fortress Apex Freestanding Deck
          This is going to be a big project but in the end it will be worth it. I had the deck delivered by truck and it is over 2 thousand pounds. It comes with everything you need to build a beautiful deck. I plan on taking down my existing deck that is worn beyond its years. It comes with apex PVC decking, and it is very sturdy and well-made and a beautiful Brazilian Teak brown, steel framing, fasteners, and hardware. The stair kit is a simple three step. The kit has an exceptional warranty. Super excited to get this up and finally have a nice deck. My pictures aren’t the best as I have the kit stacked and ready to go soon. Highly recommend if you need an all-in-one deck.
          • Recommended
          Showing 1-3 of 3 reviews