How to Assemble a Modern Adirondack Chair

By Keter - Outdoor Storage Solutions: Sheds, Deck Boxes, and More | Published: 2026-10-27

Category: How-to Guides

Follow these step-by-step instructions to assemble your Modern Adirondack Chair quickly and correctly, with tips to avoid common mistakes.

Quick Answer

Assembling your Modern Adirondack Chair takes about 30 minutes with basic tools. Follow the steps below in order, and double-check each connection before tightening fully.

What You Need Before Starting

Before you begin, clear a flat workspace and gather a Phillips-head screwdriver (or a power drill with a Phillips bit), a rubber mallet (optional but helpful), and the included hardware pack. The resin material is durable but can crack if over-tightened, so hand-tighten screws until snug, then stop.

The Modern Adirondack Chair is designed for easy assembly with pre-drilled holes and labeled parts. However, the gray finish can show fingerprints during handling—wearing gloves keeps the chair clean and prevents smudges.

Assembly Steps

Attach the Backrest to the Seat: Align the backrest panel with the seat frame so the pre-drilled holes match. Insert the two long bolts through the backrest into the seat brackets, then hand-tighten the nuts. Do not fully tighten yet—leave them loose so you can adjust alignment later. Common mistake: tightening bolts too early can cause the backrest to sit crooked. Keep them loose until all pieces are connected.
Install the Armrests: Slide each armrest onto the side brackets of the seat and backrest. The armrests have a left and right orientation—check the molded markings underneath. Insert the short screws into the pre-drilled holes on the armrest brackets and tighten halfway. Checkpoint: ensure both armrests are level and at the same height before tightening fully.
Attach the Front Legs: Position the front legs under the front edge of the seat, aligning the holes. Insert the remaining bolts and hand-tighten the nuts. The legs should sit flush against the seat bottom. Common mistake: forcing a misaligned leg can strip the resin threads. If it doesn't fit easily, loosen adjacent bolts and try again.
Secure All Fasteners: Once all parts are connected and aligned, go back and tighten every bolt and screw using your screwdriver or drill. Turn each fastener until snug—do not overtighten, as resin can crack under excessive force. Final check: gently rock the chair to test stability. If it wobbles, identify the loose connection and tighten further.
Attach the Back Slats (if applicable): Some models include additional back slats for extra support. Insert the small screws through the slats into the backrest frame, spacing them evenly. Tighten each screw until the slat is secure but not compressed. Checkpoint: verify slats are parallel and evenly spaced for a uniform look.

Product Details

Modern Adirondack Chair - Gray: The gray resin Muskoka chair offers deep seating and wide armrests, made from durable resin that resists rot and splinters. This means your assembled chair will be comfortable for long afternoons and require no painting or staining, even after years outdoors.
Modern Adirondack Chair - Gray