Your First Build: 6 Things We Wish We Had Known
Your first build is both exciting and challenging. There are many details that only experience reveals. Here is what builders usually wish they had known when they started their first kit from The Guitar Fabrik.
BROADLY SPEAKING
1. "Pre-sanded" does not mean ready to finish
Your kit's body and neck are pre-sanded with P180 grit. Start every surface with P240. What comes next depends on the wood and on the finish you chose:
- Open-pore wood (ash and mahogany: most of our kit bodies, and mahogany necks): after P240, apply grain filler for a smooth result, then sand with P400.
- Closed-pore wood (maple necks): no filler needed. Sand with P240, then P400.
- Natural, oil or translucent look: finish the sanding with P400, because scratches show through a clear finish.
- Stain or dye: wipe the wood with a damp cloth to raise the grain, let it dry, then sand lightly with P400 before you apply the dye. This keeps the surface from turning fuzzy after the first coat.
- Solid color paint: P240 is enough on the bare wood (after filling the pores of an open-pore wood); you sand the sealer or primer afterwards.
Trust your touch, inspect the surface under a raking light, and remove all sanding dust before you apply anything. Your personal paint guide from the guitar finish quiz shows the steps for your wood and finish.
Read the step-by-step guides (click an image to open the article):
The wood preparation
Apply grain filler on a guitar body
2. Always perform dry fits
Before gluing or screwing anything in place, dry fit all parts. Check the neck pocket, pickguard alignment, and where the bridge sits. Measure carefully more than once. This step helps avoid mistakes that can be difficult or impossible to fix later. Dry fitting ensures your parts fit well and your build will come together smoothly. Learn from our dry fitting resources to ensure your parts fit perfectly and your assembly goes smoothly.
Read the step-by-step guides (click an image to open the article):
Integrating the guitar neck to the body
3. Wiring is plug and play
All our kits come with solderless wiring: the pickups, controls and output jack join with plug-in connectors, so you do not need a soldering iron. Follow your kit's wiring diagram, push each connector into its matching socket, and test the guitar through an amp before you close the control cavity: gently tap each pickup with a screwdriver and listen. Find the diagram for your kit on our guitar wiring diagrams page.
Our guitar wiring article shows a simple test of the electronics before you install them in the cavity, and how to ground the circuit to the bridge, still without soldering.
Read the step-by-step guides (click an image to open the article):
Wiring the electronics of a guitar
4. Finishing takes patience and care
Start by choosing your finish: oil, water-based or nitro, and a natural, translucent or solid color look. Not sure which one suits your kit? Our guitar finish quiz recommends a finish and builds your personal paint guide.
Then follow the steps in order:
- Sand with P240.
- Open-pore wood (ash, mahogany): fill the pores, then P400. Closed-pore wood (maple): P400.
- Stain or dye if you want color (raise the grain first, see tip 1), then seal.
- Apply thin, even coats. Let each coat dry and sand lightly between coats.
- Let the finish cure fully. Mirror finishes are polished at the end; matt and satin finishes are left as they are.
- Work in a clean, dust-free and well-ventilated space.
Careful finishing turns your kit into an instrument worthy of any stage or studio. Our painting and finishing articles cover each step in detail.
Read the step-by-step guides (click an image to open the article):
Which paint for my DIY guitar kit
Apply grain filler on a guitar body
Staining my guitar
How to finish my guitar neck
Polishing my guitar
5. Setup completes your build
Installing strings is only the first step. Start with the bridge position, which sets the scale length and the intonation. Then adjust neck relief with the truss rod, the action, the intonation and the pickup height. A ruler is enough to start; a feeler gauge and action set makes the adjustments precise.
Read the step-by-step guides (click an image to open the article):
Guitar bridge positioning
Adjust string height with the truss rod
Adjusting guitar pickup height
Guitar nut adjustment for optimal action
6. What you need for your build
You do not need a full luthier workshop for a kit. Here is what to have ready, and what can wait.
Required
Sandpaper for the wood preparation and between coats, masking tape to protect the neck pocket, fretboard and cavities while you finish, and copper tape to shield the cavities against hum.
Your finishing products: a guitar finishing kit matched to the finish you chose, and grain filler for open-pore woods.
Required for a set-in neck kit
A set-in neck is glued into the body: you need wood glue and a clamp to hold it in place while the glue dries.
Everyday tools you probably already have
- Phillips and flat screwdrivers
- A ruler or tape measure (a steel rule in millimeters is ideal)
- A pencil
- A drill with small bits to pre-drill screw holes
- A craft knife to trim masking tape
- A soft cloth or towel to protect the body
- A small box to keep the screws together
- A clip-on tuner or a tuner app
- Gloves and a dust mask for sanding and finishing
Nice to have
These make setup more precise and the build more comfortable, but they can wait until your second guitar.
Browse all our luthier tools.
Conclusion
Putting your own instrument together is a hands-on process that helps you understand how each component contributes to the instrument's playability and tone. It’s a practical way to gain control over your custom setup while developing essential luthier skills.
Work carefully, take accurate measurements, and follow each step with precision. A well-built instrument reflects the quality of your process and the care you put into the build.
Stuck at any step? Reply to your order email or contact our technical support.
