How to Build an Adirondack Chair – Step-by-Step Guide
Learning how to build an Adirondack chair is one of the best weekend projects a beginner woodworker can tackle. The design looks complicated – all those curves and angles – but it's actually very forgiving once you build a set of hardboard templates. I've built over a dozen of these chairs, and my total material cost usually lands right around $45 using #2 cedar. That's a fraction of what the big box stores charge for inferior pine versions.
This guide covers everything: lumber selection, a complete cut list, a hardboard template method that makes the curved cuts repeatable, and a real outdoor finish guide that won't leave you repainting every spring.
Want the full measured drawings before you start? Check out our woodworking plans library for printable Adirondack chair plans with exact dimensions.
Why Cedar Is the Right Wood for This Build
Cedar is the standard choice for outdoor furniture, and for good reason. It's naturally rot-resistant, lightweight, holds screws well, and smells incredible when you cut it. A 1x6x8 cedar board runs about $10-14 at most lumber yards right now. If you want to price the cedar precisely, run the boards through our board foot calculator before you shop. That's more than pine, but the longevity difference is enormous.
Pressure-treated lumber is another option some people suggest. I avoid it for chairs. The chemicals used in modern PT lumber are safer than the old CCA treatment, but I still don't want to sit on it for hours. Cedar is the better choice here, full stop.
Buy #2 cedar if you want to keep costs down. The knots are fine structurally – just avoid placing knots at joint locations or at the narrowest points on curved parts where they could create a weak spot.
Tools You'll Need
You don't need a full woodshop to build an Adirondack chair. Here's what actually matters:
- Jigsaw – essential for the curved back legs and arm rests
- Circular saw or miter saw – for breaking down lumber
- Kreg R3 pocket hole jig – for the back slat assembly
- Drill/driver with bits
- Random orbital sander
- 4 bar clamps, minimum
- Tape measure and marking square
- Router with 1/4-inch roundover bit (optional but worth it)
- Safety glasses and hearing protection
The jigsaw is the one tool you truly cannot skip. A router makes the chair look professional by softening all the edges, but if you don't have one, 120-grit sandpaper and elbow grease gets you 90% of the way there.
Full Cut List
| Part | Qty | Thickness | Width | Length | Material |
|---|---|---|---|---|---|
| Back legs | 2 | 3/4" | 5-1/2" | 37" | Cedar 1x6 |
| Front legs | 2 | 3/4" | 3-1/2" | 22" | Cedar 1x4 |
| Seat slats | 5 | 3/4" | 5-1/2" | 21" | Cedar 1x6 |
| Back slats | 5 | 3/4" | 3-1/2" | 36" | Cedar 1x4 |
| Arm rests | 2 | 3/4" | 5-1/2" | 28" | Cedar 1x6 |
| Front seat support | 1 | 3/4" | 3-1/2" | 21" | Cedar 1x4 |
| Back seat support | 1 | 3/4" | 3-1/2" | 21" | Cedar 1x4 |
| Upper back rail | 1 | 3/4" | 3-1/2" | 21" | Cedar 1x4 |
| Lower back rail | 1 | 3/4" | 3-1/2" | 21" | Cedar 1x4 |
| Arm supports | 2 | 3/4" | 1-1/2" | 10" | Cedar 1x2 |
Material Cost Breakdown
| Material | Qty | Unit Price | Total |
|---|---|---|---|
| Cedar 1x6x8 | 4 boards | $11.00 | $44.00 |
| Cedar 1x4x8 | 2 boards | $7.50 | $15.00 |
| Cedar 1x2x8 | 1 board | $4.00 | $4.00 |
| 1-5/8" exterior screws (1 lb) | 1 box | $6.00 | $6.00 |
| 2-1/2" exterior screws (1 lb) | 1 box | $8.00 | $8.00 |
| Titebond III (small bottle) | 1 | $7.00 | $7.00 |
| 1/4" hardboard (template material) | 1/4 sheet | $4.00 | $4.00 |
| Teak oil (quart) | 1 | $18.00 | $18.00 |
| Estimated Total | $106.00 | ||
Note: Finish and screws will cover multiple chairs. If you're building a pair, your per-chair cost drops to around $70-75. Prices reflect current regional averages and will vary by location.
Making the Hardboard Templates
This is the step most beginner guides skip, and it's the one that makes the biggest difference in your finished chair. Templates let you cut both back legs and both arm rests to identical profiles without measuring twice from scratch on every piece.
Buy a quarter sheet of 1/4-inch hardboard (sometimes called Masonite) – it runs about $4 at Home Depot. Draw your back leg profile on it freehand using the dimensions from the cut list as a guide. The back leg has a gentle S-curve on the front face – the bottom sits flat on the ground and the upper portion angles back at about 20 degrees to support the seat and back assembly.
Cut the template with your jigsaw. Sand the edges smooth with 120-grit wrapped around a scrap block. Trace this template onto your cedar, making sure the wood grain runs parallel to the long axis of the leg. Cut just outside the line – about 1/16 inch. Then either sand back to the line or use a flush-trim router bit with the template as a guide.
Do the same for the arm rest profile. The front of the arm rest has a wide radius – about 3 inches – that you can draw with a jar lid or a compass. The back end gets notched to fit around the back leg assembly.
Step-by-Step Build Instructions
Work on a flat surface for all assembly steps. Even a slight twist in the base assembly will make your finished chair rock on the patio.
Step 1: Mill your lumber. Rip any boards that need to come down in width
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