TimberTech AZEK Deck Replacement with Metal Railing in Boise
Quick answer
Iron Crest Remodeling Group LLC completed this deck builder project in Boise. Iron Crest tore out an aging painted wood deck, its built-in bench and its steps at a Boise home and built a new 10 × 16 foot (160 sq ft) TimberTech AZEK composite deck from the ground up: six new concrete footings, 4×4 pressure-treated posts on galvanized post bases, a new 2×8 pressure-treated frame, TimberTech AZEK decking with hidden fasteners, two step runs down to the lawn, and 36-inch black metal railing.
Iron Crest tore out an aging painted wood deck, its built-in bench and its steps at a Boise home and built a new 10 × 16 foot (160 sq ft) TimberTech AZEK composite deck from the ground up: six new concrete footings, 4×4 pressure-treated posts on galvanized post bases, a new 2×8 pressure-treated frame, TimberTech AZEK decking with hidden fasteners, two step runs down to the lawn, and 36-inch black metal railing. Job photos show the old decking stripped on June 17, 2026, the new frame up on June 19 and the finished deck on June 21.
- Deck Size
- 10 ft × 16 ft (160 sq ft)
- Decking
- TimberTech AZEK, hidden fasteners
- Railing
- 36 in black metal, 30 linear ft
- Foundation
- 6 new concrete footings
- Framing
- 2×8 pressure-treated
- Build Photos
- June 17 → June 21, 2026
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Drag the slider to compare the transformation of this deck builder project in Boise.
Before
After
Before
After
The original deck was painted wood with a built-in bench and backrest along one side and wood steps down to the yard. Painted wood in Boise's climate — hot, dry summers with strong sun and freeze-thaw winters — needs regular scraping and repainting to stay presentable. Re-covering the old structure with new boards would have tied a new low-maintenance surface to an old frame, so the decision was to replace the entire deck, structure included.
We demolished and hauled away the existing deck, the built-in bench and the steps, then rebuilt from the footings up. Six new concrete footings carry 4×4 pressure-treated posts set on galvanized post-base brackets, which keep the wood off the concrete. The new frame is 2×8 pressure-treated lumber — a 16-foot rim board and fifteen 2×8 joists — set with joist hangers and structural connectors. The walking surface is TimberTech AZEK composite decking in a color the homeowner chose, fastened with a hidden-fastener system so the boards show no screw heads, and the rim is wrapped in matching fascia boards. Two step runs, framed in pressure-treated lumber and surfaced in the same decking, lead down to the lawn, and 36-inch black metal railing runs along the open sides in place of the old bench.
The homeowner has a new deck that does not need to be scraped, stained or painted: a new structure on new footings, a fastener-free TimberTech AZEK surface, clean fascia around the edge, black metal railing that keeps the view open, and two ways down to the yard. The build itself was quick — the job photos run from stripped decking on June 17 to a finished deck on June 21, 2026, in line with the 4–6 working day schedule in the contract.
Demolition & Haul-Away
Existing painted wood deck, built-in bench and steps torn out and hauled away; site cleaned and prepped for footings
Footings & Posts
Six new concrete footings with 4×4 pressure-treated posts on galvanized post-base brackets
Framing
New 2×8 pressure-treated frame — a 16-foot rim board and fifteen joists — set with joist hangers and structural connectors
Decking & Fascia
TimberTech AZEK composite decking installed with a hidden-fastener system; rim wrapped in matching fascia
Steps & Railing
Two step runs framed in pressure-treated lumber and surfaced in decking; 30 linear feet of 36-inch black metal railing
What did Iron Crest build on this Boise deck project?
We removed an old painted wood deck, its built-in bench and its steps, and built a new 10 × 16 foot (160 sq ft) TimberTech AZEK composite deck on six new concrete footings, 4×4 pressure-treated posts and a new 2×8 pressure-treated frame. The boards are hidden-fastened, the rim has matching fascia, and the deck has two step runs and 36-inch black metal railing.
How long does a deck replacement like this take?
On this project the job photos show the old decking stripped on June 17, 2026, the new frame built by June 19 and the finished deck on June 21. The contract scheduled 4–6 working days, weather permitting. Larger, elevated or attached decks take longer, and permit review time comes on top of construction.
Do you need a permit to build a deck in Boise?
The City of Boise requires a building permit when a deck is more than 12 inches above grade, according to the city's Homeowner's Guide. Other Treasure Valley cities and Ada County set their own thresholds, so check with the jurisdiction the property is in. Iron Crest confirms permit requirements for every deck during planning and pulls customary permits as part of the contract.
Should you re-deck an old frame or replace the whole deck?
Putting new boards on an old frame ties a new surface to whatever life the old structure has left. On this Boise project the whole deck came out and the footings, posts and frame were replaced along with the boards, so every part of the deck is new. Our deck replacement vs. resurfacing guide covers when re-decking can make sense.
What are hidden deck fasteners?
Hidden fasteners attach deck boards from the sides or below instead of screwing through the top face, so the walking surface has no visible screw heads. TimberTech makes several hidden-fastener systems for its decking; this deck was installed with a hidden-fastener system throughout.
Why use galvanized post bases under deck posts?
Post-base brackets anchor each post to its concrete footing and hold the end grain of the wood up off the concrete, where it would otherwise sit in water. On this deck every 4×4 pressure-treated post sits in a galvanized post base on a new footing.
Does a TimberTech AZEK deck need to be stained or painted?
No. Unlike the painted wood deck it replaced, the TimberTech AZEK boards are not stained or painted; routine cleaning is the maintenance.
Does Iron Crest build decks outside Boise?
Yes. Iron Crest Remodel designs and builds decks across the Treasure Valley, including Boise, Meridian, Eagle, Nampa, Kuna, Star, Caldwell and Garden City.
- Deck Building ServicesComposite and wood decks, design through permits
- Deck Builder in BoiseLocal considerations for Boise decks
- Deck Permits, Codes & InspectionsWhat the permit process looks like
- Deck Replacement vs. ResurfacingWhen a new frame is worth it
- Composite Deck Cost in BoiseWhat drives the price of a composite deck
- Deck Cost per Square Foot in BoisePer-square-foot pricing by material
- Trex vs. TimberTech vs. DeckoratorsComparing the major decking brands
- Deck Materials GuideWood, composite and PVC compared
- Deck Design GuideLayout, stairs and railing choices
- Deck Build TimelineHow long each phase takes
- 500 sq ft Composite Deck in EagleAnother Iron Crest deck project
- Elevated Composite Deck in MeridianAn elevated deck with stairs
- Homeowner's Guide — City of BoiseStates that a building permit is required when a deck is more than 12 inches above grade.
- Building Permits — City of BoiseHow to apply for a residential building permit in Boise.
- TimberTech Decking Collections — TimberTechThe manufacturer's overview of its decking lines and colors.
- Hidden Deck Fasteners 101 — TimberTechHow hidden fastener systems attach boards without face screws.
- DCA 6: Prescriptive Residential Wood Deck Construction Guide — American Wood CouncilIndustry reference for footings, posts, joists and connections in wood-framed decks.
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