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Build a skateboard deck

Design Project 4 weeks Medium build

Press a seven-ply maple deck with a Roarockit kit and a Thin Air Press vacuum bag, then shape it, drill it, finish it and ride it. Your outline, your concave, your graphic. A real product with real loads on it.

A freshly cut maple skateboard deck on a workbench beside the foam mould and vacuum bag it was pressed in, with a paper template and a jigsaw nearby.

Overview

A skateboard deck is one of the purest products there is. Seven thin sheets of maple, glued and pressed into a curve, cut to an outline, drilled in eight places. Every part of it is a decision that changes how it rides: the width for your feet, the wheelbase for how it turns, the concave for how it locks your shoes in, the kicks for how it pops. Riders can feel a quarter inch.

The Roarockit kit makes the pressing possible without a hydraulic press. A foam mould gives the deck its 3D shape, and a vacuum bag squeezes the glued veneers onto it with about 15 psi of even pressure from a hand pump. That part is mostly patience. The design is in what you do before and after: the layup you choose, the outline you draw, how clean your cut is, how square your holes are, and what the bottom looks like when the board flips over.

Build it to ride. If you do not skate, build it for someone who does, and get them to test it.

Skills needed

  • Laminating with a vacuum bag↗Glue, stack, bag, pump. The Thin Air Press pulls about 15 psi over the whole deck with a hand pump; no clamps, no press.
  • Reading a plywood layupSeven 1/16" maple veneers. Five run long, two run across. Which two, and why that order, decides how stiff the deck is and how it fails.
  • Drawing the outline in FusionA symmetric outline on a centreline with the wheelbase, nose and tail lengths and width as parameters; printed 1:1 or cut as a template.
  • Cutting and fairing a curveresource comingJigsaw or band saw just outside the line, then rasp, spokeshave and sander to a smooth edge you can run a finger along without a bump.
  • Drilling the truck patternresource comingEight holes, in two groups, square to the centreline and on the wheelbase. A jig or the RockitRuler; 3/16" bit; get one wrong and the board pulls to one side.
  • Graphics and finishA vinyl stencil or a transfer for the bottom, an outdoor clear coat over it, grip tape on top.

Assessment

Criterion Developing Proficient Exemplary
Spec and outline Copied a shape; dimensions not stated Dimensions chosen for a rider and a use, outline parametric and symmetric Spec explains each dimension against how the board will ride; template checked against a real deck
Layup and pressing Voids, dry spots, plies slipped Even glue, plies aligned, full time in the bag, blank tight to the mould Layup order justified; blank has no gaps at the edge, and concave matches the mould
Cutting and fairing Wandering cut, flat spots on the curve, tear-out Cut to the line, edge smooth and continuous, rounded consistently Edge you could sell; nose and tail match side to side within 1 mm
Drilling Holes off centre or out of square; trucks sit crooked Pattern square to centreline, on the wheelbase, trucks sit flat Countersunk, hardware flush, bolts drop through without forcing
Finish and graphic Bare wood, or finish over dust Sealed, graphic clean, grip laid without bubbles Finish flat and hard; graphic designed for the outline, not pasted on
Record and test Photos only Times, glue and problems recorded; board tested Test result explains a change to the next deck

Trucks that sit crooked are the one fault that ruins an otherwise good deck. Drilling gets the most weight after pressing.

Deliverables

  • [object Object]
  • The Fusion sketch of the outline with those dimensions as parameters, plus the printed or laser-cut template
  • The pressed blank, photographed before cutting, with a layup diagram showing grain direction per ply
  • The finished deck, cut, drilled, sealed, with graphic and grip, ready for trucks
  • A build record with glue used, time in the bag, cure time, and a note on anything that went wrong at each stage
  • A ride test or a load test, and one change you would make to the next deck

Materials

  • [object Object]
  • Roarockit Sk8Glue or Titebond III, about 250 mL per deck, and a small paint roller to spread it
  • Masking tape, a pencil, a long straightedge, a paper or 1/8" plywood template
  • Jigsaw or band saw, rasp, spokeshave or block plane, sandpaper 100 to 320
  • Drill, 3/16" bit, countersink, truck-hole jig or RockitRuler
  • Outdoor water-based clear coat, vinyl for a stencil, grip tape
  • Trucks, wheels, bearings and hardware, if you are going to ride it

Steps

Week 1: Spec and outline

  1. Measure decks. Borrow three from people who skate. Record length, width, wheelbase, nose and tail length, and how each one rides. Stand on them.
  2. Write your spec for one rider and one use: street, cruising, or a longboard. Pick numbers for every dimension and say why.
  3. In Fusion, sketch half the outline on a centreline with the dimensions as parameters, then mirror it. Fair the curve with as few spline points as you can. Mark the truck hole centres on the wheelbase.
  4. Print the outline 1:1 across tiled pages, or cut it from 1/8" plywood on the laser. Lay it on a real deck of similar size and check it looks right at full scale. Screens lie about size.
  5. Draw the layup: seven plies, top to bottom, with an arrow for grain on each. Decide where the two cross plies go and write one sentence about why.

Week 2: Press

  1. Dry-run the whole process with no glue: stack the plies on the mould, slide it into the bag, seal it, pump. Find out where the bag catches and how long the pump takes. Then take it apart.
  2. Set up: mould on the bench, plies in order, glue and roller ready, netting cut, bag open. Once the glue is out you have about ten minutes of open time.
  3. Roll a thin, complete coat of glue on the mating face of each ply. Thin means the surface looks wet everywhere and nothing drips. Stack them on the mould in your layup order, aligned at the centre.
  4. Into the bag, netting over the top under the valve, seal the end, pump until the bag is hard against the stack and the concave shows through. Check the seal for the first ten minutes and pump again if it softens.
  5. Leave it a minimum of 8 hours, better overnight. Open the bag, take the blank off the mould, scrape the squeezed-out glue, and let it cure another day flat before cutting.

Week 3: Cut, fair, drill

  1. Find the centreline of the blank from the mould marks and draw it end to end. Line up the template’s centreline on it, tape it down, and trace.
  2. Cut 2 to 3 mm outside the line with a jigsaw or band saw, blank supported so it does not vibrate. Let the tool do the cutting.
  3. Fair to the line. Rasp for the bulk, spokeshave or block plane along the grain, then a sander. Run your fingers along the edge with your eyes closed and fix every bump.
  4. Round over the edge, 1/4" top and bottom with a trim router, or by hand with a block. Sand the faces and edge, 100, 150, 220.
  5. Mark the truck holes from the centreline on the wheelbase, square, using a jig or the RockitRuler. Drill 3/16" from the top with a backer board under the deck so the exit is clean. Countersink the top so the bolt heads sit flush. Drop the truck bolts through and check every one falls freely.

Week 4: Graphic, finish, ride

  1. Design the bottom graphic for the outline you cut. Cut a vinyl stencil or a transfer, apply it, paint or leave the wood through it, and peel.
  2. Seal the bottom and edges with at least two coats of outdoor clear. Sand with 320 between coats. Seal the same day you finish sanding, so the wood does not pick up dust and moisture.
  3. Lay grip tape on the top, from the centre outward, and trim around the edge with a file and a blade.
  4. Mount trucks and wheels. Stand on it. Ride it, or get your rider to, on flat ground first. Note flex, turn, pop and anything that feels off.
  5. Write the record and one change you would make to the next deck. If the trucks sit true and the edge is clean, you have made a product.

Stretch options

  • Design and shape your own foam mould for a different concave or a steeper kick, and press a second deck on it.
  • Press a longboard from nine plies and compare its flex to the seven-ply deck under the same rider.
  • Cut the outline on the CNC from your Fusion sketch instead of by hand, and compare the edge.
  • Build a matching fingerboard from the kit’s offcuts, same outline scaled down.