Joinery for a Client: Build to Someone Else's Specifications

Overview

Until now, you have built things for yourself. You decided the dimensions, the material, the finish, and the deadline. That is about to change. In this project, you will build a piece of furniture or functional object for someone else — to their specifications, meeting their standards, on their timeline.

This is a fundamentally different skill. When you build for yourself, good enough is good enough. When you build for a client, their definition of good enough is what matters. You must understand what they want (which is often different from what they say), communicate clearly about what is possible, manage their expectations about cost and timeline, and then deliver something that makes them say: "This is exactly what I wanted."

The building skills here are real joinery — traditional joints that hold without screws or nails, relying on precise cuts and wood-to-wood contact. Mortise and tenon joints have held furniture together for three thousand years. Dado joints make shelves that never sag. Dovetails are the mark of a craftsperson. You will learn at least two of these.

Finding Your Client

Your client should be someone you know — a family member, neighbor, or family friend. Not a stranger for this first project. The relationship should be real but low-stakes: if something goes wrong, it does not ruin a professional reputation.

Good first client projects:

• A custom spice rack for a neighbor's kitchen
• A small bookshelf or display shelf to specific dimensions
• A storage box or chest with a lid
• A nightstand or side table
• A planter box to specific dimensions and finish
• A tool rack or wall organizer for a garage or workshop

How to ask: "I'm learning advanced woodworking and I need a real project to build for someone. Is there anything you need built? I'll build it to your exact specifications. The only cost would be materials."

For your first client project, do not charge for labor. You are learning. The client gets a free custom piece. You get the education. This is not free work forever — it is an apprentice's exchange. After you have built 2-3 client pieces successfully, you start charging.

Phase 1: The Client Meeting (Session 1, 60 minutes)

Understanding the Brief

Sit down with your client with your notebook open. Ask these questions and write down every answer:

1. What do you need? (Let them describe it in their words. Do not suggest solutions yet.)
2. Where will it go? (Measure the space. Note the ceiling height, wall width, nearby furniture, and any obstacles.)
3. What are the exact dimensions? (Height, width, depth. If they say "about two feet," pin them down: "Is 24 inches right, or would 26 be better?")
4. What material and color? (Show them wood samples if you have them. Explain the difference between pine, oak, and walnut — cost, appearance, durability.)
5. What finish? (Natural oil, stain, paint? Glossy or matte?)
6. What is the deadline? (When do they need it?)
7. What is the budget for materials? (Be honest about costs. Hardwood is expensive.)

Presenting the Plan

After the meeting, draw a sketch of the piece with dimensions labeled. Create a materials list with estimated costs. Write a proposed timeline.

Return to the client with the sketch and say: "Here is what I am going to build. These are the dimensions. This is the material. This is the finish. I can have it done by [date]. The materials will cost approximately [amount]. Does this match what you had in mind?"

Listen to their response. They will almost always want to change something. Adjust the plan. Get clear agreement before you buy materials or cut wood.

Phase 2: Prepare and Practice Joints (Session 2, 120 minutes)

Choosing Your Joints

Based on the project, select at least two joints from these three:

Mortise and Tenon. The strongest joint in woodworking. A rectangular peg (tenon) fits into a rectangular hole (mortise). Used where two pieces meet at a right angle — legs to rails, frames, doors.

Dado. A channel cut across the grain of one board that another board slides into. Used for shelves. The shelf sits in the groove and cannot sag or pull out.

Dovetail. Interlocking angled fingers that resist being pulled apart. Used for box corners, drawer construction. The most visually distinctive joint — if someone sees dovetails, they know the piece was built by hand.

Practice Cuts

Before cutting your real project wood, practice on scrap. Joinery demands precision — a loose mortise and tenon wobbles, and a tight one will not assemble. You need to be accurate to within 1/32 of an inch.

Mortise and tenon practice:

1. Mark a tenon on the end of a scrap board — a rectangle the thickness of your chisel, centered on the board end.
2. Use your back saw to cut the tenon cheeks (the flat sides) and shoulders (where the tenon meets the main board).
3. Mark and chop the mortise in a second board. Drill out most of the waste with a drill, then square the corners with a chisel.
4. Test the fit. The tenon should slide into the mortise with firm hand pressure — not so tight you need a mallet, not so loose it wobbles.

Dado practice:

1. Mark two parallel lines across a board, spaced exactly as wide as the board that will sit in the dado.
2. Cut along both lines with a back saw to the correct depth (usually 1/4 to 1/3 of the board's thickness).
3. Chisel out the waste between the cuts.
4. Test the fit with the actual board that will sit in the dado.

Dovetail practice:

1. Mark the tail angles on the end of a scrap board (1:6 ratio for softwood, 1:8 for hardwood).
2. Cut the tails with a dovetail saw.
3. Use the cut tails to mark the pins on the second board.
4. Cut and chisel the pins.
5. Test the fit. Tight is good. Gaps are visible and unacceptable.

Make at least two practice joints before touching your project wood. Record what went wrong and how you corrected it.

Phase 3: Build (Sessions 3-5, 90-120 minutes each)

Cut List and Sequence

Create a detailed cut list from your plan. For every piece, note:

• Dimensions (length, width, thickness)
• Number of pieces
• Which joints that piece receives
• Grain direction (important for appearance)

Cut all pieces to rough size first (1/4 inch oversize). Then bring them to final dimension. This two-step process protects against mistakes — an oversize piece can be trimmed, an undersize piece is firewood.

Assembly Order

Plan your assembly order before you start gluing. Complex pieces must go together in a specific sequence — if you glue the wrong joint first, you may not be able to assemble the rest. Dry-fit the entire project (assemble without glue) to verify everything fits.

Glue-Up

When you are confident the fit is correct, apply glue and assemble. Work quickly — wood glue sets in 10-15 minutes. Have all your clamps ready before you open the glue bottle.

Apply glue to both surfaces of each joint. Assemble. Clamp firmly but not so tight that you distort the wood. Check for square with your combination square. Wipe excess glue with a damp rag.

Leave clamped for at least one hour. Overnight is better.

Finishing

Sand all surfaces: 120 grit to remove tool marks, 180 to smooth, 220 for a polished feel. Apply the finish your client chose. Follow the manufacturer's instructions for drying time between coats. Apply at least two coats.

Phase 4: Deliver (Session 6, 60 minutes)

Quality Check

Before delivering, inspect every surface, joint, and corner. Check:

• Is the piece square? (Measure diagonals — if they are equal, it is square.)
• Are all joints tight? (No visible gaps.)
• Is the finish smooth and even? (Run your hand over every surface.)
• Does it match the agreed dimensions? (Measure and compare to the plan.)
• Is it stable? (Push, pull, shake. Nothing should wobble or creak.)

Client Delivery

Present the piece to your client. Walk them through what you built:

• The wood species and why you chose it (or why they chose it)
• The joints and how they work
• The finish and how to care for it (oil finishes need periodic re-oiling; poly does not)
• Any limitations or care instructions

Ask: "Is this what you had in mind?" Listen to their honest reaction. If they love it, enjoy the moment. If they have concerns, address them seriously — this is how professionals operate.

Post-Project Documentation

In your notebook, write a project summary:

• Final dimensions vs. planned dimensions
• Joints used and how they turned out
• Total hours of work
• Materials cost
• What you would do differently next time
• Client feedback

This documentation is the beginning of a portfolio. If you build more pieces, each one gets this treatment. By the time you have built five client pieces, you will have a portfolio that demonstrates real capability.

Success Criteria

• The finished piece matches the client's agreed specifications (dimensions, material, finish)
• At least two traditional joints are used (mortise/tenon, dado, or dovetail)
• All joints are tight — no visible gaps greater than 1/32 inch
• The piece is square and stable
• The client accepts the piece without requesting corrections
• The project notebook contains the client brief, plan, cut list, assembly notes, and post-project review
• The student can explain the mechanical advantage of each joint used

Safety

This project is rated yellow — adult supervision required during chisel, saw, and power tool use.

• Chisels: Chisels are among the sharpest tools in woodworking. Always cut away from the body. Keep the free hand behind the cutting edge, never in front. A sharp chisel is safer than a dull one — dull tools require force, which leads to slips.
• Mallet strikes: When driving a chisel with a mallet, ensure the workpiece is secured in a vise or with clamps. Flying wood chips are a real hazard — eye protection required.
• Back saws: Use a guide or miter box for accurate cuts. The student controls the saw; adult supervises.
• Power tools (if used): A drill, router, or table saw requires adult direct supervision. No independent power tool use for this age group without demonstrated competency and adult approval.
• Wood glue and finishes: Apply in ventilated spaces. Wear gloves when using oil finishes.

Common Pitfalls

• Building what you want instead of what the client asked for. If they want pine painted white, do not build it in walnut with a natural finish because you think it looks better. Build what they asked for. It is their piece.
• Underestimating time. Joinery takes 3-5x longer than screw construction. A shelf that takes two hours with screws takes eight hours with dadoes and mortise-and-tenon. Build this into your timeline.
• Forcing joints. If a tenon does not fit, do not hammer it in. Pare it with a chisel. Forcing splits the mortise.
• Skipping the dry fit. Assembly without a dry fit is gambling. Dry fit every time.
• Not accounting for wood movement. Solid wood expands and contracts with humidity. In wide panels, this can be 1/8 inch or more. Leave room for it or the piece will crack. Research "wood movement" before building wide tabletops or panels.

Going Deeper

• Study Paul Sellers on YouTube. He teaches traditional hand-tool joinery with extraordinary clarity. Watch his mortise-and-tenon and dovetail tutorials.
• Build a workbench. The ultimate furniture project — a bench you build yourself becomes the platform for everything you build afterward.
• Start charging. After two or three successful client projects, set a price for your work. Materials plus a labor rate ($10-15/hour at your age is reasonable). You are no longer an apprentice doing free work — you are a craftsperson.
• Visit a professional woodshop. Ask a local furniture maker or cabinet shop if you can observe for an afternoon. Watch how they work. Ask questions. This is mentorship in its oldest form.