Spetz Specs No. 2405: step-by-step assembly & installation guide

Assembling and Finishing Farmhouse Dining Chairs

The complete step-by-step guide made from Indy Farm Life's YouTube video, free on Spetz. For the video, a step-by-step player and answers to your questions, see the Assembling and Finishing Farmhouse Dining Chairs project page.

Assembling and Finishing Farmhouse Dining Chairs

4 steps, 9 parts, 4 tools, 7 materials

Overview

The Unit

Why Do It Yourself

What It Takes

What Decides Success

Health and safety

Fumes and Flammables

Assembly and Tool Safety

Safe Finishing Practices

Before you open the box

Tools

Materials

Hardware

HardwareSizeCountUsed in steps
machine screw1, 2, 3
wood screw2, 3
dowel3
Allen key1

Finishes & supplies, in the order they go on

ProductWhat it doesMix & coatsDry timeApplied with
PrimerSeal and prepare chair frames for paint adhesion.Paint sprayer
PaintFinal colour coat on the chair framesPaint sprayer
Minwax Special Walnut 224 penetrating stainColour seat tops to match the farmhouse table.
Minwax Polycrylic (water-based)Protective topcoat over the stained seat tops4 coats

What's in the box

PartNameQtySizeNotes
Aback legs and backrest assemblyx1Pre-assembled back with legs; armed version has pre-drilled holes for arms
Bseat framex1
Cfront legx2
Dside cross bracex2
Efront/back cross bracex2Front and back cross braces installed between legs
Fseat topx1
Garmrestx2Armed chairs only; attaches via dowel and screws
Hwood gluex1Titebond III; used on cross brace joints and arm dowels
Ifelt padsx1
What's in the box
What's in the box

Before you start

Unbox & Sort

Tool Set-Up

Step by step

Step 1: Assemble the Main Frame

The back-leg/backrest assembly bolts to the seat frame, forming the chair's main structure.

Watch this step (2:18)

Parts in this step: (A) back legs and backrest assembly, (B) seat frame

You'll need: Cordless Drill/Driver, Allen Key, machine screw

  1. 1.1 Position the Frame
    • Set a sturdy trash can or similar stand at your work surface to cradle the chair during assembly.
    • Place the back legs and backrest assembly (A) upside-down or angled so the seat-frame mounting points are accessible.
    • Rest the seat frame (B) against the assembly (A), aligning the pre-drilled bolt holes on both.
  2. 1.2 Attach Back to Seat Frame
    • Insert four machine screws through the seat frame (B) into the threaded holes on the back legs and backrest assembly (A).
    • Drive each machine screw with the modified Allen key bit in your drill; do not use glue on these machine-screw joints.
    • Tighten all four screws snug; do not over-torque, as the Parawood can strip.
    • Check the seat frame sits flush and square against the back assembly.
  • Tip: Use the modified Allen key in a drill to save time, especially when assembling multiple chairs.

Before you move on: Check the seat frame is flush and square against the back assembly, leaving no gaps.

Step 2: Attach Front Legs and Cross Braces

Both front legs are attached and all four cross braces are glued and screwed for full rigidity.

Watch this step (2:57)

Front legs and cross braces installed
Front legs and cross braces installed

Parts in this step: (A) back legs and backrest assembly, (B) seat frame, (C) front leg, (D) side cross brace, (E) front/back cross brace

You'll need: Cordless Drill/Driver, Allen Key, Screwdriver, Wood Glue, machine screw, wood screw

  1. 2.1 Attach Front Legs
    • Align a front leg (C) at each seat frame (B) front corner using the pre-drilled holes.
    • Drive machine screws through the seat frame into each front leg with the Allen key bit.
    • Repeat for the second front leg.
  2. 2.2 Install Side Cross Braces
    • Apply generous wood glue (H) into each side cross brace (D) end pocket.
    • Fit side cross brace (D) between front leg (C) and matching back leg on assembly (A).
    • Secure each end with a wood screw through the pre-drilled hole.
    • Wipe glue squeeze-out immediately with a damp rag; dried glue blocks stain.
    • Repeat for the second side cross brace.
  3. 2.3 Install Front and Back Cross Braces
    • Fill both front/back cross brace (E) end pockets with wood glue (H).
    • Press the brace into the sockets between the two front legs (C) or two back legs on assembly (A).
    • Drive a wood screw into each end to lock the brace.
    • Repeat for the remaining front/back cross brace.
    • Wipe all glue squeeze-out before it sets.
Glue-and-screw pocket joints
Glue-and-screw pocket joints
  • Tip: Glue every cross-brace joint, the small wood screws alone will work loose over time, and the kit instructions do not call for glue.
  • Tip: Install side cross braces (D) first, then front and back braces (E) for easy pocket access.
  • Heads up: Never skip the glue; chairs assembled without it loosen within months of regular use.

Before you move on: Press the seat frame down on a flat surface; there should be zero wobble or racking.

Step 3: Attach the Arms

Both armrests are attached to the chair frame (armed chairs only); armless chairs skip this step.

Watch this step (4:05)

Armrest (G) attached
Armrest (G) attached

Parts in this step: (A) back legs and backrest assembly, (C) front leg, (G) armrest

You'll need: Cordless Drill/Driver, Allen Key, Screwdriver, Wood Glue, wood screw, machine screw, dowel

  1. 3.1 Attach Arm to Backrest
    • Apply wood glue (H) to the armrest dowel hole on the assembly (A) back leg.
    • Insert the armrest (G) rear dowel into the back leg hole for alignment.
    • Drive a wood screw through the back leg into the armrest.
    • Wipe any glue squeeze-out.
  2. 3.2 Attach Arm to Front Leg
    • Apply wood glue (H) to the front leg (C) top dowel.
    • Press the armrest (G) front onto the glued front leg dowel.
    • Secure the armrest to the front leg with two machine screws from underneath or through the pre-drilled holes.
    • Repeat Steps 3.1 and 3.2 for the second armrest.
  • Tip: Glue the front-leg dowel as well as driving the two machine screws: the glue makes the joint last.

Before you move on: Press down and wiggle each armrest; it should feel solid with no play.

Step 4: Finishing Process Overview

Chair frames are primed and painted white, seat tops stained to match the table, and a protective topcoat seals the stained surfaces.

Watch this step (4:33)

Parts in this step: (F) seat top

You'll need: Paint Sprayer, Primer, Paint, Wood Stain, Top Coat

  1. 4.1 Finishing Process Overview
    • Do not attach the seat top (F) to the frame yet; finish each piece separately for clean colour separation.
    • In a well-ventilated area, spray one coat of primer on each chair frame and let dry per the primer's label.
    • Apply white latex paint over the primed frames using a paint sprayer for the smoothest finish; apply additional coats as needed for full coverage.
    • Before staining the visible seat (F) top, test the stain colour (Minwax Special Walnut 224) on the underside; Parawood accepts stain differently than other species.
    • Once satisfied, stain the top face of each seat (F), let dry, then brush on 3 to 4 thin coats of Minwax Polycrylic, drying each per the label.
Test stain on seat underside
Test stain on seat underside
Two-Tone Finish: Before & After
Two-Tone Finish: Before & After

Key measurements

  • 3–4 coats of Polycrylic topcoat on seat tops
  • Tip: Parawood is a different species than red oak or pine; the stain colour looks different, so always test first.
  • Tip: Test on the six seat undersides to dial in the stain match before the visible tops.
  • Heads up: Do not stain over dried glue squeeze-out; the stain will not penetrate and leaves a visible blotch.

Before you move on: Compare the stained seat to your existing table or reference piece under the same lighting before the topcoat.

Finishing

Last Touches

Cure & Settle

Care

Alternatives

Test it before you call it done

CheckWhat you should seeIf not
Sit in each chair on a flat, hard floor.No wobble, no racking, no creaking; the chair feels solid and stable.Disassemble the loose joint, apply wood glue, reassemble, and let the glue cure before use.
Inspect every cross-brace and armrest joint for tightness.No play or movement when you grip and twist each brace or armrest.Tighten the wood or machine screw at the loose joint; add glue if omitted.
Check stained seat tops under final lighting.Colour matches the existing table; finish is smooth without blotches or bare spots.Lightly sand and apply more stain or topcoat as needed.
Check felt pads are on all four leg bottoms per chair.Pads sit flat and fully cover each leg's floor contact point.Remove and reapply any pad that is off-centre or not adhering fully.

These Specs are built from Indy Farm Life's video “Assembling and Finishing Farmhouse Dining Chairs”. Open the Assembling and Finishing Farmhouse Dining Chairs project page.

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