How to tolex a guitar amp cabinet
Author: Kevin M Date Posted:5 May 2018
How to Tolex a Cabinet
A step-by-step beginner's guide on tools, glue, measuring, corner cutting, and wrapping techniques.
One of the top questions I get is how to tolex a cab or what glue to use. Below is detailed information covering the overall process, products, and tools needed. Consider this page a guide—there are many valid techniques depending on your workspace setup and experience level.
This tutorial is designed as a beginner course, assuming one person is carrying out the work alone.
A Few Tips Before Starting
- Pick a black tolex like Nubtex or Bronco: While bright colors or snakeskin patterns are tempting, black is far more forgiving for beginners and hides minor imperfections well.
- Smooth prep work: Ensure your cabinets are sanded completely smooth with rounded edges.
- Dust removal: Wipe off all sanding dust. A cloth damp with methylated spirits will pull away fine particles left behind after brushing.
- Test fit metal corners early: Check that your corner hardware sits completely flush before applying any tolex. If necessary, sand/trim extra wood from the cabinet corners until they fit properly.
- Pre-paint interior: Paint the inside of your cabinet black ahead of time.
Tools Required
- Felt-tip pen
- Straight edge ruler (at least as long as your cabinet’s total width)
- Good quality scissors
- Lino/inking roller or a smooth silicone block with slightly rounded edges
- A few 3" and 1" inexpensive paint brushes
- Appropriate contact adhesive/glue
- Amp hardware (Tolex, corners, feet, screws, handle)
- A heavy-duty, sharp utility knife (e.g., Stanley knife with fresh blades). Avoid thin snap-off utility blades as they flex during precise cuts.
Choosing the Right Glue
While various adhesives are available, we recommend Selleys KwikGrip for consistent results:
- Standard Tin (Recommended): Great overall performance and bond strength.
- Gel Formula: Allows slightly longer open work time.
- Spray Adhesive: An expensive and messy alternative (a 1L tin of KwikGrip is usually sufficient for an entire amp head, whereas spray cans deplete quickly).
Marking Out the Tolex
Example Dimensions: Cabinet measuring 425mm Wide x 250mm High x 250mm Deep (using a piece of tolex measuring 1350mm x 1000mm).
Pro Tip: To remove wrinkles or memory creases from new tolex, lay the material flat in direct sunlight for 10–30 minutes before cutting.
- Clear a large, clean, flat workbench space.
- Lay the tolex out flat. Position the cabinet 50mm in from the top and side edges. Trace one side, the top panel, and the opposite side.
- This leaves a primary main piece marked out to approximately 1025mm x 350mm.
- Cut a second separate piece measuring 525mm x 300mm to cover the bottom panel.
- Trace your layout lines cleanly on the backing material so you know precisely where to apply glue without wasting product.
Applying the Glue
- Thoroughly stir the KwikGrip glue before application.
- Using a 3" brush, apply a thin, even layer to the larger piece of tolex, staying within your marked boundary lines.
- Ensure the coat is even (roughly the thickness of thinly spread butter) without over-brushing, which can cause contact cement to clump.
- Apply a matching layer of glue to the top and side surfaces of the cabinet.
- Apply glue to the smaller bottom piece of tolex.
- Crucial Step: Allow all glued surfaces to dry until tacky and touch-dry (no wet residue on fingers).
Wrapping & Joining
- Align the side panel of the cabinet onto the marked tolex. Ensure alignment is square so the material rolls straight.
- Roll the cabinet onto its top panel, then over onto the second side panel.
- Flip the cabinet upright onto its bottom, then firmly roll/press the tolex down with your roller or silicone block to work out any air pockets.
- Apply a thin layer of glue along the bottom wood panel and adjacent inner lips. Let dry until tacky.
- Fold the overlapping side flaps onto the bottom panel without applying excessive force.
- Lay the final separate bottom piece of tolex over the top of the folded side flaps.
- Using a sharp straight edge and utility knife, cut cleanly through both layers at once along the seam.
- Peel off the top scrap strip, lift the main edge slightly to pull out the under-layer scrap, then press both fresh edges together for a tight, invisible seam.
Corner Relief Cuts
Relief cuts allow the tolex to fold clean and flat around inner corners:
- Apply glue inside the cabinet edge (approx. 20–25mm deep) and onto the corresponding tolex flaps.
- Once tacky, firmly pull the flap over the lip and smooth it down into the cabinet interior.
- Trim excess corner overlaps as shown in the diagrams below:
Video Walkthroughs
Visual demonstrations are helpful when learning corner cuts and seam joining. Below are selected video references demonstrating various professional cabinet covering techniques:
Amplified Nation Cabinet Covering
Bottom Cut & Double-Cut Seam Method
Uncle Doug - Detailed Corner Cuts (Part 1)
Uncle Doug - Curves & Finishing (Part 2)
Grille Cloth Application Example: