Built-In Benches & Planters
Built-in benches and planters is the Handis carpentry that turns a flat deck into a place people actually want to sit and a space that grows herbs six feet from the cook surface — L-shaped, U-shaped, or perimeter cedar benches integrated into the deck rail or anchored to the framing, plus matching cedar planters built into the rail or freestanding on the deck surface with proper drainage. Three to six working days per project, from $1,500 for a single 6-foot bench with hidden fasteners to $5,000 for a full L-shape with three integrated planters and matching back-rest. Cedar is the Pacific Northwest default — ages to silver patina that looks intentional in eighteen months, resists rot for fifteen to twenty years without a finish, and matches the typical deck board. Every seat surface gets hidden fasteners (Camo screws, Cortex plugs) so nothing snags shorts or seats. Every planter gets a perforated liner, a drainage gap, and stand-off blocks so soil does not sit on the deck and rot the boards underneath. The build is pure Handis carpentry — no plumber, no electrician, no permit. We measure, we build, we leave.
Service
What Built-In Benches & Planters Covers
Built-in benches and planters is the Handis cedar carpentry that adds permanent seating and integrated planting beds to a deck without dragging chairs across the boards or setting plastic pots that rot the deck underneath. The build is pure Handis — no plumber, no electrician, no permit (built-in benches under 30 inches off the deck do not require a guard, and planters of any size do not require a permit). Cedar is the default; composite is available if the deck is composite and you want a matched look. Every bench surface gets hidden fasteners. Every planter gets drainage. The crew works clean and leaves the rest of the deck usable through the build.
Bench Frame + Anchoring
Pressure-treated 2x4 or 2x6 frame anchored to the deck framing (joists or beams) with hot-dip galvanized Simpson Strong-Tie angle brackets, or anchored to the deck rail posts where the bench is rail-integrated. The bench frame is set true, plumb, and level before any cedar goes on. Bench height is typically 17 to 18 inches from the deck surface (the comfortable sitting height for an adult); back-rest height is 14 to 16 inches above the seat. The frame is sized to support the maximum residential live load (40 pounds per square foot) with a safety factor of 2.
Cedar Seat + Back-Rest with Hidden Fasteners
Western red cedar (clear or knotty grade — your selection) on the seat surface, the back-rest, and any visible cap rail. Camo edge-screws or Cortex plugs are the two hidden-fastener systems we use — Camo drives the screw at an angle into the edge of the board so nothing shows on the seat surface, Cortex sets the screw through the face and covers the head with a matching cedar plug. Either system means you can actually sit on the bench without catching the back of your knees on a fastener head, and rain water does not pool in a recessed fastener divot to rot the board.
Planter Boxes with Drainage + Liner
Cedar planter boxes built into the rail or freestanding on the deck surface, sized 18 to 24 inches deep (the right depth for herbs, succulents, and most flowering annuals) and the length you want. Box bottoms are constructed with a 1/2-inch drainage gap between the boards, lined with perforated landscape fabric (so soil does not fall through but water drains freely), and sit on cedar stand-off blocks 1/2 inch above the deck surface (so rain water drains under, not against the deck board). Soil sits directly on the perforated liner; you can change out plantings without disturbing the planter.
Stainless Hardware Throughout
Every fastener on a cedar surface is stainless steel (305 or 316 grade) — plain steel fasteners streak rust into cedar within twelve months in Seattle weather, and even galvanized fasteners can streak after three to five years if the galvanization is thin. Stainless is the right answer once for a fifteen-to-twenty-year cedar lifespan. Structural connectors (where the bench frame ties into the deck framing) are hot-dip galvanized Simpson Strong-Tie or stainless if the project is near salt water.
Finish — Silver Patina or Penetrating Sealer
Most homeowners choose to let the cedar age to a silver patina, which takes about eighteen months in Seattle. The silver is a natural UV-and-moisture interaction with the wood, not rot, and adds zero maintenance to the homeowner's calendar. If you prefer to keep the warm cedar color, we apply a penetrating sealer (Cabot Australian Timber Oil, Penofin, TWP) at install and you re-apply every two to three years as homeowner maintenance. We tell you both options on the estimate visit; either one is fine.
How the Bench-and-Planter Build Works
Five sequential phases from layout to last fastener — the actual sequence we run on every built-in bench and planter project. No licensed-sub handoff; this is pure Handis carpentry.
Estimate Visit + Layout Confirmation + Cedar Order
On the estimate visit we confirm the bench shape (single straight, L-shape, U-shape, perimeter), the planter count and locations, the cedar grade (clear or knotty), the fastener system (Camo edge-screws or Cortex plugs), and the finish preference (silver patina or penetrating sealer). Cedar is ordered to length so we cut as little as possible on site. Clear-grade cedar lead time is typically three to seven working days from a Seattle lumberyard.
Frame Layout + Anchoring to Deck Framing
Pressure-treated 2x4 or 2x6 frame laid out on the deck per the agreed footprint, anchored to the deck framing (joists or beams) with hot-dip galvanized Simpson Strong-Tie angle brackets. The frame is set true, plumb, and level before any cedar goes on. Bench height locked at 17 to 18 inches; back-rest height locked at 14 to 16 inches above the seat. Day 1.
Cedar Seat + Back-Rest Install with Hidden Fasteners
Clear-grade cedar boards (typically 5/4 by 6 or 2 by 6) installed on the seat surface and the back-rest with the chosen hidden-fastener system. Camo edge-screws drive at an angle into the board edge so nothing shows on the seat. Cortex plugs cover face screws with matching cedar. Either way no fastener head telegraphs through the seat. Front edge of each seat board gets a 1/4-inch round-over with a router so the edge is comfortable against the back of the knees. Days 1 to 2.
Planter Box Construction with Drainage + Stand-Off
Cedar planter boxes built to the agreed size and location, with a 1/2-inch drainage gap between bottom boards, perforated landscape-fabric liner sized to the box, and cedar stand-off blocks 1/2 inch above the deck so water drains under the planter, not against the deck boards. Soil sits on the liner; you can change out plantings any season. Days 2 to 3.
Optional Finish + Walk-Through + Hand-Off
If you chose the silver-patina path the cedar gets installed raw and starts patinaing immediately. If you chose the penetrating sealer we apply one coat of Cabot Australian Timber Oil, Penofin, or TWP at install and walk you through homeowner re-application every two to three years. Walk-through with you, hand-off of warranty paperwork. Final fastener heads checked, edges round-overed, no splinters left on the seat.
Built-In Benches & Planters Pricing
Final pricing depends on bench length, bench shape (straight, L-shape, U-shape, perimeter), planter count, cedar grade (clear costs more than knotty), and finish (silver patina is no-cost; penetrating sealer add). No licensed-sub fees for this service — pure Handis carpentry, no plumber, no electrician, no permit. Request a free in-home estimate for an accurate quote.
Tell us the deck and the seating shape you have in mind — we will quote the cedar carpentry and finish in five working days or less.
Why Homeowners Book Handis for Built-In Benches & Planters
A built-in cedar bench looks like a small, simple build until you sit on one that was done wrong. The seat that catches the back of the leg on a recessed screw divot every time you stand up. The planter set directly on the deck with no stand-off and the cedar board underneath turns black with rot in eighteen months. The back-rest pitched at 95 degrees so no one can lean back without their head hitting the rail. The fastener heads streaking rust down the seat board within twelve months because the contractor used plain galvanized screws instead of stainless. None of these are exotic mistakes — they are the production shortcuts that happen when the crew has never had to live with their own bench. Handis builds benches we would actually sit on, with hidden fasteners on every seat, proper drainage on every planter, comfortable back-rest pitch (95 to 100 degrees off vertical), and stainless hardware so the cedar ages without streak. Three to six working days, no permit, no licensed sub, no surprises.
Hidden fasteners on every seat surface — no head telegraphs through
Camo edge-screws drive at an angle into the edge of the seat board so no fastener head shows on top. Cortex plugs cover face screws with a matching cedar plug. Either way you sit on a clean cedar surface with no metal underneath you. Recessed-head face screws look acceptable for the first six months and then become a rust-streak divot in year two as water pools in the recess. Hidden fasteners are the only honest answer for an outdoor cedar bench in Seattle weather.
Planters with drainage gap + perforated liner + stand-off blocks
Every cedar planter we build has a 1/2-inch drainage gap between the bottom boards, a perforated landscape-fabric liner that holds soil but releases water, and cedar stand-off blocks that lift the planter 1/2 inch off the deck surface. Soil never touches the deck. Water drains through the planter bottom, out the gap, under the planter, and off the deck per the existing drainage. A planter set directly on a deck with no drainage gap rots the deck board underneath within two seasons. We have replaced enough of those to know.
Stainless steel on every cedar fastener — fifteen-to-twenty-year cedar lifespan
Stainless steel (305 or 316 grade) is the only fastener that does not streak rust into cedar over time. Plain steel streaks within twelve months. Hot-dip galvanized streaks within three to five years if the galvanization is thin. Stainless costs about 30 percent more than galvanized at the box-store retail level but adds maybe $80 to $150 to a typical bench project total — and it is the difference between a clean cedar bench at year ten and a rust-streaked one. Stainless is non-negotiable on every Handis cedar build.
Cedar grade matched to use — clear for furniture-grade, knotty for utility
Clear-grade cedar (also called clear vertical-grain or A and Better) has no knots, is the choice for furniture-grade work where the seat surface is a daily-touch surface, and costs about twice what knotty grade costs. Knotty cedar (also called rustic grade or No. 2 and Better) has small to medium knots, is the choice for utility builds where the visual impact of knots is acceptable, and stretches the budget. We tell you both options on the estimate visit and you decide; we use clear by default for the seat surface and knotty for the planter boxes where it makes sense to split the difference.
Insured, background-checked, 1-year project warranty on the cedar work
Every Handis carpenter carries liability insurance and has cleared a background screening. The 1-year project warranty covers bench frame anchoring, hidden-fastener integrity, planter drainage function, and any cedar joint or miter — if any of those fail within a year from our installation, we come back and fix at no charge. The cedar itself carries the natural fifteen-to-twenty-year lifespan that western red cedar gives in the Pacific Northwest with no finish, longer if you choose to seal and maintain.
Estimate
Tell us the deck (footprint, age, board material), the bench shape you have in mind (single straight, L-shape, U-shape, perimeter), the planter count and rough location preference, the cedar grade preference (clear or knotty), and the finish preference (silver patina or penetrating sealer). We send back a clear estimate and a project timeline.
Customer Reviews
Built-in benches and planters reviews from real Seattle-area Handis customers.
L-shaped cedar bench around two sides of our Bellevue deck with a matching back-rest and two integrated planters at the ends. Five working days. The hidden Camo fasteners are the detail that mattered most — my kids sit on it daily and no one has caught a knee on a screw head. The planters have a perforated liner and stand-off blocks, and the rosemary has been alive through fourteen months including last December's freeze.
Single 6-foot cedar bench with back-rest along the back rail of our Magnolia deck. Three working days. Clear-grade cedar, all stainless hardware, no finish — they recommended letting it patina and after eighteen months the bench is a soft silver that looks intentional. The back-rest pitch is comfortable for actually reading on. Cost $2,100 with the back-rest add-on. Worth every dollar.
Full U-shape perimeter bench around our Issaquah deck with three integrated planters and matching back-rest on all three sides. Six working days as quoted. The crew worked clean — drop cloths down every day, fasteners and offcuts swept up at the end of each day, no splinters left on the seat. The bench has been the gathering point for every family dinner since.
We had a previous contractor build a similar bench five years ago that streaked rust within eighteen months because he used plain galvanized screws. Handis pulled the old bench (which we asked them to dispose of), framed a new one with full stainless hardware and hidden Camo screws, and matched the original L-shape. Five working days. Two years in, zero rust streak, no maintenance needed. The difference is real.
Three standalone cedar planters on our existing deck — 24-inch boxes, perforated drainage liner, stand-off blocks so the deck stays dry underneath. They mocked up the placement with painter's tape before they committed so we could see where they actually wanted to put them. Single day of work. We have herbs and a Japanese maple in them now and the cedar is patinaing exactly as they described.
Frequently Asked Questions
Common questions about built-in cedar benches and planters — pricing, timeline, materials, fasteners, drainage, and what to expect.